Trichoderma citrinoviride Bissett, Canad. J. Bot. 62: 926. 1984.

= Hypocrea schweinitzii (Fr.) Sacc., Syll. Fung. 2: 522. 1883.

Materials examined: Croatia, Istrija, forest N of Barbariga, elev. ca. 20 m, on Quercus ilex, 18 Oct. 2010, immature stromata, W.J. (culture S313). Italy, Sardinia, at Aggius, on Quercus suber, 7 Nov. 2009, W.J. (culture S27); at the road SS392 from Lago di Coghinas, 20.5 km before Tempio Pausania, sexual morph on burnt wood of Quercus suber, 6 Nov. 2009, W.J. (WU 32173, culture S20); Trentino, Mattarello, near Villa Bertagnolli, asexual morph on Pinus nigra, 20 Oct. 2011, W.J. & H.V. (culture S567). Spain, Asturias, Saliencia, asexual morph soc. immature ?T. polysporum stromata, on Fagus sylvatica, 3 Jun. 2013, M. Pennanen (culture S659); Basque Country, Gipuzkoa, Oiartzun, BI3420 heading to Endara, nature park Aiako Harra, pasture with Betula and Ulex, asexual morph on Betula pendula, 6 Nov. 2010, W.J. (culture S379); Canarias, La Palma, "Marchenwald" below Refugio El Pilar approaching from the south, asexual morph on Pinus canariensis, 2 Dec. 2010, W.J. & R.M. Dahnke (culture S430).

Notes: This is the only species of the Longibrachiatum Clade that forms stromata in Central Europe (Jaklitsch 2011). In Southern Europe we found it twice as sexual morph, but it is more common as asexual morph.

Trichoderma composticola Samuels & Jaklitsch, Persoonia 31: 139. 2013.

Note: Apart from the holotype collected during this work in Crete, Greece, this species is also known from Mexico, The Netherlands, Russia and U.K. (see Jaklitsch et al. 2013).

Trichoderma cremeoides Jaklitsch & Voglmayr, sp. nov. MycoBank MB809281. Fig. 10.

Etymology: Denoting the similarity of the stromata to T. cremeum.

Stromata scattered, gregarious or aggregated in small numbers, when fresh 1(-3) mm diam, to 1 mm high, turbinate or pulvinate, outline variable, mostly irregularly angular, margin (edge of fertile elevated upper part) free, often conspicuously wavy or lobed, sterile sides smooth. Surface when young pale or bright yellow, with projecting perithecia, when mature dull yellow, pale to dull green and often smooth surface, with perithecia projecting or not; waxy, translucent. Stromata when dry (0.3-)0.4-1.3(-2) x (0.2-)0.4-1.1(-1.6) mm, (0.25-)0.3-0.5(-0.7) mm thick (n = 35), pulvinate, turbinate or irregularly discoid with variable outline, sometimes with white radiating base mycelium when young, often with a sterile, smooth or furrowed, white to yellow, cylindrical base or stipe; fertile upper part elevated above the substrate surface, typically with a coarsely wavy to crenate margin. Surface finely floccose, granulose or tubercular, with inconspicuous or distinctly prominent perithecia. Ostiolar or perithecial dots (38-)40-123(-200) [micro]m diam (n = 45), densely disposed, distinct or diffuse, first brownish, turning green or grey due to translucent spore masses and often comprising a large part of the perithecium. Colour shades of yellow, yellow-brown or dull orange-brown, colour 1-4AB3, 2-3AB4, turning olive to green upon maturation and then macroscopically not determinable. Spore deposits dark green or dark grey-green. After rehydration stromata 20-40% larger, pale yellow, with large olive-green ostiolar dots (67-)79-135(-146) [micro]m diam, pulvinate; after addition of 3% KOH turning dark yellow, dull...