ARTICLE 57
, . from ” was based Hypoxylon Pathumthani Key words: -actin ß-tubulin Biodiversity SEM Thailand et al. (1989) in the sense of and comedens
H. comedens cf. . This ” within Hypoxylon comedens H. comedens s.l. or Theissenia -tubulin and . . T. pyrenocrata, T. Durotheca is transferred to from both Camillea IMA FUNGUS · VOLUME 4 · NO 1: 57–69 NO 1: 4 · · VOLUME FUNGUS IMA * 3, Theissenia ” and “Hypoxyloideae and its segregate genera, are the combination of , from Mexico, including data on the asexual state, H. comedens Here we report on further morphological and molecular Hypoxylon comedens was originally described from the , and Marc Stadler are presented, with the former found to be Xylariaceae, (Xylariaceae, Durotheca 2 on a comparison with type material. Læssøe excluded the highly carbonized and large perithecia seated directly on the substrate, the clavate, deliquescing asci, and the peculiar spore shape and pale pigmentation. Furthermore, most collections yield no extractable pigments (with KOH) unlike most members of Hypoxylon studies on material referable to but were unable to suggest a revised placement. Also, the placement. but were unable to suggest a revised ; asexual morph. Ju et due to our cultures failing to produce an and we recognized al. (2003) shed some light on the situation, that our fungus was a member of Theissenia these authors. 1879), and has Malaysian state Sarawak on Borneo (Cesati 1979, Zhuang 2001). since been reported from China (Tai Material determined as “Hypoxylon also reported from Mexico (San Martín González & Rogers 1993). Martin (1969) also published on a presumed H. comedens but the material he used is evidently a species of Camillea The cardinal features that excludes Hypoxylon sp. nov., as type. Hypoxylon comedens sp. nov., morph T. pyrenocrata and T. , J. Jennifer D. Luangsa-ard 2 D. comedens and the type of Theissenia, is synonymized with D. comedens, et al. (2003) also noted was not as expected for . Ju is introduced with D. depressa , but noted that the aleurisporous Xylariaceae , and Ju et al. (2003) recognized based on a Nodulisporium- was introduced by Maublanc (1914) T. eurima is accepted in Durotheca, whilst T. rogersii, is transferred to , T. )
, Prasert Srikitikulchai , a position never previously proposed. Ju et , a position never previously proposed. Ju 1 1 ” pyrenocrata. Læssøe (1994) accepted this . New distributional data for
Xylariaceae Theissenia The genus Durotheca , based on its morphology with further evidence from molecular phylogenetic studies; a combined with further evidence from molecular phylogenetic , based on its morphology Xylariaceae, we have repeatedly encountered a