Didymium atrichum Henney & Alexop.

Lado, Carlos & Basanta, Diana Wrigley De, 2024, The type material in the David W. Mitchell myxomycete collection at the Royal Botanic Garden, Kew, Phytotaxa 649 (2), pp. 135-158 : 146

Didymium atrichum Henney & Alexop. , in Henney, Alexopoulos & Scheetz, Mycotaxon 11(1):161 (1980)

Cultotype: USA. Texas, Houston, from mass spore sowing on autoclaved leaf of Bauhinia sp. tree, Dec 1979, leg. C.J. Alexopoulos, exUTMC, DWM 3618 [two boxes + one slide, K-M001435090], ( Fig. 3G ).

Notes. In his notebook, Mitchell wrote that the sample was sent by C.J.Alexopoulos, and is “from mass spore sowing on autoclaved leaf of Bauhinia sp. from monosporous culture on corn meal agar with Enterobacter ascogenus . Sporulated in Houston, Texas, Dec 1979 ”. This cultotype is probably from Holotypus UTMC 1681 kept for more than 30 subcultures over 16 years ( Henney et al. 1980: 161). The holotype UTMC 1681 is in BPI 749236 , and other cultotypes were sent to NY 00834430 , ATCC, K 53672 , University of Helsinki ( Finland), Facultad de Ciencias Naturales y Museo, La Plata ( Argentina); and private collections of D.T. Kowalski, N.E. Nannenga-Bremekamp, and D.W. Mitchell, as above.

Figures

FIGURE 3. A–N. Photographs of type material from Cribraria filiformis to Echinostelium arboreum.