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Lichenicolous Stock Photos and Images
RF2B7M8PW–Illosporiopsis christiansenii, a red lichenicolous fungus from Finland with no common english name
RF2T47APT–Crustose lichen, Xanthoria parietina, with a lichenicolous fungus, Telogalla olivieri, collected from a limestone wall
RM2K5E094–Possibly Cladonia pyxidata. Cladonia pyxidata or the pebbled cup lichen is a species of cup lichen in the family Cladoniaceae. It is host to the lichenicolous fungus Lichenoconium pyxidatae. Photographed in New Zealand. Credit: BSpragg
RMRGJHKK–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : The Museum
RF2B7T9AW–Illosporiopsis christiansenii, a red lichenicolous fungus from Finland with no common english name
RF2T47AN6–Crustose lichen, Xanthoria parietina, with a lichenicolous fungus, Telogalla olivieri, collected from a limestone wall
RMRGK01D–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 15. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : The Museum
RF2B7M90A–Illosporiopsis christiansenii, a red lichenicolous fungus from Finland with no common english name
RMRGKCHM–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 193. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : BM(NH)
RMRGJHFE–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 29. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : The Museum
RMRGJH94–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES B 55. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : The Museum
RMRGK034–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 11 I. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : The Museum
RMRGJHA0–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 53. 25/im. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : The Museum
RMRGJH5E–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 61 ' *-£**. LW* '^J. l.*. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : The Museum
RMRGKC09–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 243. Fig. 29 Monodictys lepraha (IMI 224315).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : BM(NH)
RMRGJHE1–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 43 1QQOft(L«°P.0Q O. OqQ %0. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : The Museum
RMRGKBYX–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 245. Fig. 30 Psammina stipitata (1MI 225006—holotype). A, Conidium. B, Conidiogenous cell with the arms of a conidium starting to develop. C, Detail of portion of a conidium.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : BM(NH)
RMRGKBKH–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 265. Fig. 41 Trimmatostroma lichenicola (hb. Christiansen 553—holotype). A, Vertical section of infected hymenium of Candelariella vitellina. B, Conidia. C, Conidiophores with attached maturing conidia. D, Mycelium from the hypothecium of the host.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). Londo
RMRGJH1Y–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 71. Fig. 34 Vouauxiomyces truncatus (Savoie, Santesson, UPS), conidia (x 2500). 471, 1857; K!) later distributed and illustrated material of both states. Pycnidia commonly occur without the teleomorph but are regularly encountered mixed amongst the ascomata. Abrothallus microspermus differs from A. parmeliarum, with which it has often been confused, in the consistently epruinose ascomata which only reach 300 jum diam; according to Keissler (1930) the ascospores are also paler brown and the epithecium
RMRGJHCW–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 45. lOjLLm Fig. 21 Minutophoma chrysophthalmae (IMI 237276—holotype). A, Vertical section of pycnidium. B, Surface view of cells from the upper part of the pycnidium which easily separate. C, Conidia. D, Conidiogenous cells. elongated and also pigmented below, and the extremely small conidia. An additional feature might be the absence of a very deeply pigmented area around the ostiole, but this is not emphasized here because the whole of the exposed part of the pycnidium in M. chrysophthalmae might b
RMRGKC7K–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 223. 25fim lOjum Fig. 17 A-C Ascohansfordiellopsis deightonii (1M1 85643—holotype). A, Vertical section of perithecium. B, Immature ascus. C, Ascospores. D, A. insectivora (IMI 4249—holotype) ascospores.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : BM(NH)
RMRGKCCW–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 205. Fig. 7 Ampullifera pirozynskii (IMI 106630c/—holotype). A, Conidiophore. B, Conidia. C, Mycelium with hyphopodia. Distribution: Tanzania. Known only from the type collection. Observations: This species is perhaps most closely allied to the Brazilian Ampullifera amoeboides from which it is distinguished by the preponderance of 2-septate conidia which also tend to be somewhat narrower. 6. Ampullifera ugandensis Deight., Mycol. Pap. 78 : 39 (1960). (Fig. 8) Type: Uganda, Masaka Road, associated with lic
![. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 233 rCir>^ ^^"cS^^>>^. Fig. 23 Illosporium carneum (Jaap, Fungi sel. Exs. 450, K). A, Vertical section of sporodochium on a Peltigera thallus. B, Conidiogenous cells and chains of conidia. C, Conidia.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : BM(NH) Stock Photo](https://c8.alamy.com/comp/RGKC4A/bulletin-of-the-british-museum-natural-history-botany-the-lichenicolous-hyphomycetes-233-rcirgt-quotcsgtgt-fig-23-illosporium-carneum-jaap-fungi-sel-exs-450-k-a-vertical-section-of-sporodochium-on-a-peltigera-thallus-b-conidiogenous-cells-and-chains-of-conidia-c-conidia-please-note-that-these-images-are-extracted-from-scanned-page-images-that-may-have-been-digitally-enhanced-for-readability-coloration-and-appearance-of-these-illustrations-may-not-perfectly-resemble-the-original-work-british-museum-natural-history-london-bmnh-RGKC4A.jpg ". Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 233 rCir>^ ^^"cS^^>>^. Fig. 23 Illosporium carneum (Jaap, Fungi sel. Exs. 450, K). A, Vertical section of sporodochium on a Peltigera thallus. B, Conidiogenous cells and chains of conidia. C, Conidia.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : BM(NH) Stock Photo")
RMRGKC4A–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 233 rCir>^ ^^"cS^^>>^. Fig. 23 Illosporium carneum (Jaap, Fungi sel. Exs. 450, K). A, Vertical section of sporodochium on a Peltigera thallus. B, Conidiogenous cells and chains of conidia. C, Conidia.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. British Museum (Natural History). London : BM(NH)
RMRGKCBE–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 211. 10/j.m Fig. 10 Cladosporium arthoniae (hb. Christiansen 570—holotype). In the original collection Taeniolella delicata is intermixed with the Cladosporium. Taeniolella verrucosa occurred on a different portion of the same specimen. V. DENDRODOCHIUM Bonord. Handb. Allgem. Mykol. : 135 (1851). Colonies orbicular or effuse; mycelium mainly superficial, irregularly branched, hyaline or pale shades. Stroma, setae and hyphopodia absent. Conidiophores macronematous, forming sporo- dochia, compacted, ± hyali
RMRGKBPB–. Bulletin of the British Museum (Natural History) Botany. . Fig. 37 Taeniolella punctata (IMI 225002—holotype). tufts of very elongated conidiophores arranged more or less parallel to one another and conidia which are 2-11 septate and 25-90 x 7-9 urn. T. punctata appears to be primarily a lichenicolous species as it is strictly limited in the original collection to parts of the bark with Graphis thalli, even though microtome sections showed that it penetrated into the periderm layers, amongst which remnants of the lichen thallus were also to be found. It shows some similarity to T. delicata b
RMRGKC3B–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 239 Hosts: On Opegrapha species, most commonly O. lyncea (Sm.) Borr. ex Hook, and less frequently on O. atra Pers. Distribution: European, probably rather southern, reflecting the range of the major host. Reliably recorded at least from the British Isles, Czechoslovakia, France and Ireland.. Fig. 26 Milospium graphideorum (IMI 186254). Reproduced from Hawksworth (1975a : 230). XIII. MONOCILLIUM Saksena Indian Phytopath. 8 : 9 (1955). Colonies effuse; mycelium usually superficial, irregularly and frequentl
RMRGKBJE–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 273 (17—) 19—26(—32) x 5-7-5 urn; these are borne on unbranched, or more rarely 1-3 branched, coni- diophores which are very variable in length but mainly 50-70x2-5-3 (am; the conidiogenous cells are phialidic. This species proved to be conspecific with the taxon generally called Cylindrocarpon tonkinense Bugnicourt (eg. Booth, 1966) but as Massalongo's epithet predates Bugnicourt's by 36 years, the new combination Cylindrocarpon lichenicola (C. Massal.) D. Hawksw. comb. nov. is made for this species here
RMRGKBM3–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES Ma 263. Fig. 40 Teratosperma lichenicola (IMI 2561 h—holotype). A, Conidiophore. B, Conidia (a, secondary conidia). characters in the taxon, now leave little doubt that it does represent a species distinct from T. anacardii. This species is unlike the taxa hitherto placed in Teratosperma in that it lacks appendages on the basal cell. The only alternative genus for it would be Sporidesmium Link ex Fr., which is essentially separated from Teratosperma on the basis of this character, but currently comprises
RMRGKC6C–. Bulletin of the British Museum (Natural History) Botany. 226 D. L. HAWKSWORTH. Fig. 19 Hansfordiellopsis lichenicola. A, Seta of Tricharia sp. with hyphae of the lichenicolous fungus growing up it (I MI 523536, x 1300). B, Conidiogenous cells, mycelium and conidia (1M1 106122a, x3600). C, Apex of conidiogenous cell showing scar left by conidium secessation (IMI 106122a, x 12 000). A-C Scanning electron micrographs. Observations: Hansfordiellopsis lichenicola is evidently not an uncommon species although it has rarely been mentioned in the literature. The mycelial characters are generally con
RMRGJHGT–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 27. Fig. 13 Keissleriomyces sandstedeanus (W 1921/185—holotype). A, Vertical section of pycnidium. B, Vertical section of pycnidium wall. C, Surface view of pycnidial wall. D, Conidiogenous cells. E, Conidia. Type species: Laeviomyces pertusariicola (Nyl.) D. Hawksw. (syn. Spilomium pertusarii- cola Nyl.—holotypus). Number of species: Two, both lichenicolous. Observations: The type species of this genus was retained in Lichenoconium as an interim measure by Hawksworth (1977) because a suitable generi
RMRGKC9K–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 215. Fig. 13 Dictyophrynella bignoniacearum (URM 28007—holotype). A, Mycelium with hyphopodia (arrows) and conidium ( x3500). B-C, Scars left by the secession of conidia ( x 12 000). A-C Scanning electron micrographs. VII. ENDOPHRAGMIELLA B. Sutton Mycol.Pap. 132 : 58(1973). Colonies effuse, dark brown or black; mycelium immersed or sometimes partly superficial, irregularly branched, brown. Stroma sometimes developed but absent in most species. Setae and hyphopodia absent. Conidiophores macronematous, mon
RMRGKBFA–. Bulletin of the British Museum (Natural History) Botany. 282 D. L. HAWKSWORTH the conidial state of Pleospora herbarum (Fr.) Rabenh., a widespread parasite and saprophyte of vascular plants forming leaf-spots and occuring on decaying herbaceous stems, etc. This is conse- quently excluded as not an obligately or primarily lichenicolous fungus but one fortuitously occurring on lichens.. Fig. 46 Monacrosporium carestianum. Reproduced from Ferraris (1904). Monacrosporium carestianum Ferraris, Malpighia 18 : 500 (1904). (Fig. 46) Type: Italy, Riva Valdobbia, on thallus of a Physcia, September 190
RMRGKCGH–. Bulletin of the British Museum (Natural History) Botany. 196 D. L. HAWKSWORTH. Fig. 2 Acremonium spegazzinii (LPS 11.339—holotype). conidiogenous cell. Conidia catenate or sometimes solitary, dry, ellipsoid, obclavate, subcylindri- cal or lemoniform, brown to dark brown, non-septate or transversely septate. Type species: Ampullifera foliicola Deight. Perfect state: ? Teratoschaeta Bat. & Fonseca; see under A. amoeboides. Number of species: Six species are accepted here, one of which is newly described. All occur as obligately lichenicolous fungi on foliicolous lichens with the possible e
RMRGKC8J–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 219. Fig. 15 Fusarium peltigerae (K—isotype). A, Conidiogenous cells with attached conidia. B, ? Microconidia. C, Macroconidia. The epithet 'peltigerae is generally cited as being published in 1851, but that work (Westendorp, 1852 : 407) did not appear until 1852; the latter date is clearly printed on the paper cover of the journal, although the issue was for 1851. The exsiccatum label, which is reproduced word-for- word in Westendorp (loc. cit.), was, however, published in 1849 (Sayre, 1969 : 56) and so
RMRGKBMH–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 261. lOfxm Fig. 39 Teratosperma anacardii (IM1 895376 except as indicated). A, Conidiophores. B, Conidia (a, secondary conidia; b, conidium from 1M1 10442—isotype). was a lichenicolous species and he further demonstrated that the acicular appendages on the apical and lateral cells figured by Hansford were in reality a kind of microconidia. Similar microconidia occur in T. Hchenicola (p. 262) but are unknown in most species of the genus. This fungus appears to be primarily a pathogen of Strigula elegans al
RMRGKBN6–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 259. lOum Fig. 38 Taeniolella verrucosa (hb. Christiansen 569—holotype). almost prostrate, often 1-2 branched at the base, dark brown, smooth-walled at first but some- times with the outer wall splitting to produce a coarsely verrucose ornamentation, thick-walled, septate, constricted at the septa, mainly 30-50 x 6-7 um. Conidiogenous cells monoblastic inte- grated, terminal, subcylindrical, dark brown, not well-defined with the terminal cells in turn acting as conidiogenous cells. Conidia adhering in cha
RMRGK03M–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES. D lOjLim Fig. 1 Asterophoma mazaediicola (herb. Hafellner—holotype). A, Infected mazaedium with pycnidia extruding conidia in mucilaginous drops. B, Vertical section of pycnidium. C, Conidiogenous cells. D, Conidia. attenuated and projecting slightly at the exterior to give the whole a star-like appearance, 5-8 x 2-4 //m, lined internally with smaller subhyaline to hyaline subglobose to polyhedral pseudoparenchymatous cells 1 -5-3*5 jum diam; mycelium ramifying through the mazae- dium, hyphae hyalin
![. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 31. A^ i.^v^^^ v*-**- - " Fig. 16 Libertiella malmeydensis (K—isotype). A, Vertical section of pycnidium (x 500). B, Vertical section of pycnidial wall with conidiogenous cells and conidia (x 1020). wide. Conidiogenous cells enteroblastic, arising terminally and laterally from short conidio- phores or directly from the inner wall of the pycnidial cavity, cylindrical, phialidic with a short collarette, rarely proliferating, hyaline, 10-12 x 2-3*5//m. Conidia abundant, adhering together in gelatin Stock Photo](https://c8.alamy.com/comp/RGGD4N/bulletin-of-the-british-museum-natural-history-botany-botany-lichenicolous-coelomycetes-31-a-iv-v-quot-fig-16-libertiella-malmeydensis-kisotype-a-vertical-section-of-pycnidium-x-500-b-vertical-section-of-pycnidial-wall-with-conidiogenous-cells-and-conidia-x-1020-wide-conidiogenous-cells-enteroblastic-arising-terminally-and-laterally-from-short-conidio-phores-or-directly-from-the-inner-wall-of-the-pycnidial-cavity-cylindrical-phialidic-with-a-short-collarette-rarely-proliferating-hyaline-10-12-x-2-35m-conidia-abundant-adhering-together-in-gelatin-RGGD4N.jpg ". Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 31. A^ i.^v^^^ v*-**- - " Fig. 16 Libertiella malmeydensis (K—isotype). A, Vertical section of pycnidium (x 500). B, Vertical section of pycnidial wall with conidiogenous cells and conidia (x 1020). wide. Conidiogenous cells enteroblastic, arising terminally and laterally from short conidio- phores or directly from the inner wall of the pycnidial cavity, cylindrical, phialidic with a short collarette, rarely proliferating, hyaline, 10-12 x 2-3*5//m. Conidia abundant, adhering together in gelatin Stock Photo")
RMRGGD4N–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES 31. A^ i.^v^^^ v*-**- - " Fig. 16 Libertiella malmeydensis (K—isotype). A, Vertical section of pycnidium (x 500). B, Vertical section of pycnidial wall with conidiogenous cells and conidia (x 1020). wide. Conidiogenous cells enteroblastic, arising terminally and laterally from short conidio- phores or directly from the inner wall of the pycnidial cavity, cylindrical, phialidic with a short collarette, rarely proliferating, hyaline, 10-12 x 2-3*5//m. Conidia abundant, adhering together in gelatin
![. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 285 Keissler (1959:185) interpreted Cornicularia tenuissima f. pustulata (Schaer.) Zahlbr. as material infected by Sporotrichum lettauianum; this view was reiterated by Grummann (1960: 125-126) but there is no evidence either saw Schaerer's material.. lOum Fig. 47 ? Sporotrichum lettauianum (W 1936/1629). Sporotrichum lichenicola Berk. & Br., J. Linn. Soc, Bot. 14 : 102 (1873). Type: Sri Lanka, Peradeniya, "our white mould', December 1867, [collector not indicated] (K— holotype!). The type collec Stock Photo](https://c8.alamy.com/comp/RGKBE0/bulletin-of-the-british-museum-natural-history-botany-the-lichenicolous-hyphomycetes-285-keissler-1959185-interpreted-cornicularia-tenuissima-f-pustulata-schaer-zahlbr-as-material-infected-by-sporotrichum-lettauianum-this-view-was-reiterated-by-grummann-1960-125-126-but-there-is-no-evidence-either-saw-schaerers-material-loum-fig-47-sporotrichum-lettauianum-w-19361629-sporotrichum-lichenicola-berk-amp-br-j-linn-soc-bot-14-102-1873-type-sri-lanka-peradeniya-quotour-white-mould-december-1867-collector-not-indicated-k-holotype!-the-type-collec-RGKBE0.jpg ". Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 285 Keissler (1959:185) interpreted Cornicularia tenuissima f. pustulata (Schaer.) Zahlbr. as material infected by Sporotrichum lettauianum; this view was reiterated by Grummann (1960: 125-126) but there is no evidence either saw Schaerer's material.. lOum Fig. 47 ? Sporotrichum lettauianum (W 1936/1629). Sporotrichum lichenicola Berk. & Br., J. Linn. Soc, Bot. 14 : 102 (1873). Type: Sri Lanka, Peradeniya, "our white mould', December 1867, [collector not indicated] (K— holotype!). The type collec Stock Photo")
RMRGKBE0–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 285 Keissler (1959:185) interpreted Cornicularia tenuissima f. pustulata (Schaer.) Zahlbr. as material infected by Sporotrichum lettauianum; this view was reiterated by Grummann (1960: 125-126) but there is no evidence either saw Schaerer's material.. lOum Fig. 47 ? Sporotrichum lettauianum (W 1936/1629). Sporotrichum lichenicola Berk. & Br., J. Linn. Soc, Bot. 14 : 102 (1873). Type: Sri Lanka, Peradeniya, "our white mould', December 1867, [collector not indicated] (K— holotype!). The type collec
RMRGJHWW–. Bulletin of the British Museum (Natural History). Botany; Botany. LICHENICOLOUS COELOMYCETES. Fig. 5A-B, Epicladonia sandstedei (IMI 240228); A, infected podetium with galls (x 125); B, vertical section of pycnidium (x 500). C, E. stenospora (Dobbeler 1827), infected squamule showing decolorization and pycnidia (x 20). appearing almost cellular in parts. Conidiophores absent or short-cylindrical, simple or sparsely branched at the base, hyaline, variable in length, to 25 jum tall, 3^//m wide. Conidiogenous cells holoblastic, arising directly from the pycnidial wall or integrated into the con
RMRGKBY8–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 247. Fig. 31 Pseudocercospora lichenum (W 1912/117—holotype). A, Conidiophores, some with young conidia attached to the conidiogenous cells. B, Conidia. flexuose, pale brown, relatively thin-walled, sometimes sparse, 1-5-3 urn wide. Stroma arising on the surface of the apothecial disc, very variable in extent, to 40 urn wide and 20 urn tall but structure often obscure due to mixture with the epithecial tissue and its granular pigments, composed of brown torulose hyphae with cells mainly 3-7 urn long. Coni
RMRGKC5G–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 229. 10/im Fig. 21 Hansfordiellopsis tenuissima (1MI 990866—holotype). recalls H. variegata in having very short conidiogenous cells, but differs from that species in the coloration of the conidia and shape of the basal cell of the conidia. Additional specimen: Ghana: Aburia, on indet. lichens on Cola verticillata, 5 April 1953, T. W. Tinsley (IM1 53448e>!). 4. Hansfordiellopsis tenuissima D. Hawksw. sp. nov. (Fig. 21) Fungus lichenicola. Mycelium superficiale, ex hyphis repentibus, cellulis brunneis p
RMRGK02G–. Bulletin of the British Museum (Natural History). Botany; Botany. Fig. 2 Bachmanniomyces uncialicola (W 1929/2—holotype of Sirococcus lichenicola). A, Gall with pycnidia close to the apex of a branch, note the thinner stem above the gall (x 125). B, Gall with pycnidia arising laterally, the branch similar in thickness above and below the gall (x 12*5). Number of species: Monotypic. Observations: Bachmanniomyces has no very close allies amongst the non-lichenicolous Coelomycetes. The conidiogenous cells in Discosporium Hohnel (type species D. populeum (Sacc.) B. Sutton) are rather similar but
RMRGKBK3–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 267. Fig. 42 Xanthoriicola physciae. A, Infected discoloured apothecia of Xanthoria parietina ( x 16). B, Conidiophores immersed in the thecium of the host ( x 1400). C-D, Conidiogenous cells ( x3500). E, Conidium in optical section and surface view ( x3500). F, Group of conidia ( x 3000). G, Conidia showing verrucose ornamentation ( x 11 000). A, F-G IMI 171822; B-E IMI 164974. F-G Scanning electron micrographs.. Please note that these images are extracted from scanned page images that may have been digi
![. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 225. Fig. 18 Hansfordiellopsis lichenicola. A, Conidiogenous cells, conidia and mycelium with hyphopodia- like cells. B-E, Conidia. A 1MI 55448c, a' URM 18781 (holotype), B 1MI 106122c, C IMI 99552a, D IMI 89824a and E IMI 81812. Hosts: On foliicolous lichens, particularly Gyalectidium aspidotum (Vain.) R. Sant., G. rotuli- forme Mull. Arg., Setomyces giganteae Bat. & Bez., 5". orchidae Bat. & Peres, and Tricharia species. Ascocarp formation in the hosts is apparently often inhibited by the p Stock Photo](https://c8.alamy.com/comp/RGKC75/bulletin-of-the-british-museum-natural-history-botany-the-lichenicolous-hyphomycetes-225-fig-18-hansfordiellopsis-lichenicola-a-conidiogenous-cells-conidia-and-mycelium-with-hyphopodia-like-cells-b-e-conidia-a-1mi-55448c-a-urm-18781-holotype-b-1mi-106122c-c-imi-99552a-d-imi-89824a-and-e-imi-81812-hosts-on-foliicolous-lichens-particularly-gyalectidium-aspidotum-vain-r-sant-g-rotuli-forme-mull-arg-setomyces-giganteae-bat-amp-bez-5quot-orchidae-bat-amp-peres-and-tricharia-species-ascocarp-formation-in-the-hosts-is-apparently-often-inhibited-by-the-p-RGKC75.jpg ". Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 225. Fig. 18 Hansfordiellopsis lichenicola. A, Conidiogenous cells, conidia and mycelium with hyphopodia- like cells. B-E, Conidia. A 1MI 55448c, a' URM 18781 (holotype), B 1MI 106122c, C IMI 99552a, D IMI 89824a and E IMI 81812. Hosts: On foliicolous lichens, particularly Gyalectidium aspidotum (Vain.) R. Sant., G. rotuli- forme Mull. Arg., Setomyces giganteae Bat. & Bez., 5". orchidae Bat. & Peres, and Tricharia species. Ascocarp formation in the hosts is apparently often inhibited by the p Stock Photo")
RMRGKC75–. Bulletin of the British Museum (Natural History) Botany. THE LICHENICOLOUS HYPHOMYCETES 225. Fig. 18 Hansfordiellopsis lichenicola. A, Conidiogenous cells, conidia and mycelium with hyphopodia- like cells. B-E, Conidia. A 1MI 55448c, a' URM 18781 (holotype), B 1MI 106122c, C IMI 99552a, D IMI 89824a and E IMI 81812. Hosts: On foliicolous lichens, particularly Gyalectidium aspidotum (Vain.) R. Sant., G. rotuli- forme Mull. Arg., Setomyces giganteae Bat. & Bez., 5". orchidae Bat. & Peres, and Tricharia species. Ascocarp formation in the hosts is apparently often inhibited by the p
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