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Lophodermium Black & White Stock Photos

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Lophodermium Black & White Stock Photos

. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. LOPHODERMIUM. 237 suffered by it should, where other soil conditions permit, be planted with Weymouth pine {Pinits Strohus) and the Douglas fir {Pseudotsuga JDmtglasii), which are, as yet, exempt from attacks of this parasite. Infection would seem to be brought about chiefly by westerly winds (in Germany), which carry diseased leaves or fungus-spores from infected places. Large areas run greater risks than small pat Stock Photo
RMPG4BJ1–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. LOPHODERMIUM. 237 suffered by it should, where other soil conditions permit, be planted with Weymouth pine {Pinits Strohus) and the Douglas fir {Pseudotsuga JDmtglasii), which are, as yet, exempt from attacks of this parasite. Infection would seem to be brought about chiefly by westerly winds (in Germany), which carry diseased leaves or fungus-spores from infected places. Large areas run greater risks than small pat
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. LOPHODERMIUM. 237 suffered by it should, where other soil conditions permit, be planted with Weymouth pine {Pinits Strohus) and the Douglas fir {Pseudotsuga JDmtglasii), which are, as yet, exempt from attacks of this parasite. Infection would seem to be brought about chiefly by westerly winds (in Germany), which carry diseased leaves or fungus-spores from infected places. Large areas run greater risks than small pat Stock Photo
RMRDC1MJ–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. LOPHODERMIUM. 237 suffered by it should, where other soil conditions permit, be planted with Weymouth pine {Pinits Strohus) and the Douglas fir {Pseudotsuga JDmtglasii), which are, as yet, exempt from attacks of this parasite. Infection would seem to be brought about chiefly by westerly winds (in Germany), which carry diseased leaves or fungus-spores from infected places. Large areas run greater risks than small pat
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. LOPHODEEMIUM. 239 Lophodermium nervisequium (D. C.)^ (U.S. America). This very common fungus attacks both old and young silver firs. The needles die after becoming brown, and remain for a long 1/. Fia. 124.—lophodermium nervisequium on Abies pectinata (Silver Fir). 1, Under surface of needle with apothecia. 2, Upper surface with pycnidia. Fig. 125.—Lophodermium nervisequium. Section of a needle of Silver Fir. b, Pyc Stock Photo
RMPG4BHA–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. LOPHODEEMIUM. 239 Lophodermium nervisequium (D. C.)^ (U.S. America). This very common fungus attacks both old and young silver firs. The needles die after becoming brown, and remain for a long 1/. Fia. 124.—lophodermium nervisequium on Abies pectinata (Silver Fir). 1, Under surface of needle with apothecia. 2, Upper surface with pycnidia. Fig. 125.—Lophodermium nervisequium. Section of a needle of Silver Fir. b, Pyc
. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. 148. Fig. 14. a, Lophodermium pinastri, b, Lophoder- mium abietis, both enlarged -j-. From R 02 a. He also proved that seedlings from German seeds were more severely attacked than seedlings from Da- nish or northern seeds. Rostrup states this fungus to be most de- structive toPinus; his examinations have been of great significance to the right understanding of the fal- ling of the leaves of firs both in Denmark and abroad. The conidial fructification called Depazea line- aris R 83 d c. fig. is found on living leaves in summe Stock Photo
RMRE3925–. Danish fungi as represented in the herbarium of E. Rostrup;. Fungi. 148. Fig. 14. a, Lophodermium pinastri, b, Lophoder- mium abietis, both enlarged -j-. From R 02 a. He also proved that seedlings from German seeds were more severely attacked than seedlings from Da- nish or northern seeds. Rostrup states this fungus to be most de- structive toPinus; his examinations have been of great significance to the right understanding of the fal- ling of the leaves of firs both in Denmark and abroad. The conidial fructification called Depazea line- aris R 83 d c. fig. is found on living leaves in summe
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fia. 124.—lophodermium nervisequium on Abies pectinata (Silver Fir). 1, Under surface of needle with apothecia. 2, Upper surface with pycnidia. Fig. 125.—Lophodermium nervisequium. Section of a needle of Silver Fir. b, Pycnidium on upper surface shedding conidia. a, Apothe- cium on the lower surface. (After R. Hartig.). Fig. 126.—lophoderviium nervisequium on Silver Fir. Portion of a ripe apothe- cium. a a, Filament Stock Photo
RMPG4BH0–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fia. 124.—lophodermium nervisequium on Abies pectinata (Silver Fir). 1, Under surface of needle with apothecia. 2, Upper surface with pycnidia. Fig. 125.—Lophodermium nervisequium. Section of a needle of Silver Fir. b, Pycnidium on upper surface shedding conidia. a, Apothe- cium on the lower surface. (After R. Hartig.). Fig. 126.—lophoderviium nervisequium on Silver Fir. Portion of a ripe apothe- cium. a a, Filament
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. LOPHODEEMIUM. 239 Lophodermium nervisequium (D. C.)^ (U.S. America). This very common fungus attacks both old and young silver firs. The needles die after becoming brown, and remain for a long 1/. Fia. 124.—lophodermium nervisequium on Abies pectinata (Silver Fir). 1, Under surface of needle with apothecia. 2, Upper surface with pycnidia. Fig. 125.—Lophodermium nervisequium. Section of a needle of Silver Fir. b, Pyc Stock Photo
RMRDC1KN–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. LOPHODEEMIUM. 239 Lophodermium nervisequium (D. C.)^ (U.S. America). This very common fungus attacks both old and young silver firs. The needles die after becoming brown, and remain for a long 1/. Fia. 124.—lophodermium nervisequium on Abies pectinata (Silver Fir). 1, Under surface of needle with apothecia. 2, Upper surface with pycnidia. Fig. 125.—Lophodermium nervisequium. Section of a needle of Silver Fir. b, Pyc
. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fia. 124.—lophodermium nervisequium on Abies pectinata (Silver Fir). 1, Under surface of needle with apothecia. 2, Upper surface with pycnidia. Fig. 125.—Lophodermium nervisequium. Section of a needle of Silver Fir. b, Pycnidium on upper surface shedding conidia. a, Apothe- cium on the lower surface. (After R. Hartig.). Fig. 126.—lophoderviium nervisequium on Silver Fir. Portion of a ripe apothe- cium. a a, Filament Stock Photo
RMRDC1KA–. Diseases of plants induced by cryptogamic parasites : introduction to the study of pathogenic Fungi, slime-Fungi, bacteria, & Algae . Plant diseases; Parasitic plants; Fungi. Fia. 124.—lophodermium nervisequium on Abies pectinata (Silver Fir). 1, Under surface of needle with apothecia. 2, Upper surface with pycnidia. Fig. 125.—Lophodermium nervisequium. Section of a needle of Silver Fir. b, Pycnidium on upper surface shedding conidia. a, Apothe- cium on the lower surface. (After R. Hartig.). Fig. 126.—lophoderviium nervisequium on Silver Fir. Portion of a ripe apothe- cium. a a, Filament
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