Bryoparasitic Pezizales

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Octospora kelabitiana Egertová & Döbbeler
Mycological Progress 17(1-2): 107 (2017)
MycoBank: MB 822432

Type: Malaysia: Borneo, Sarawak, Kelabit Highlands, Pa'Lungan, Pa'Lungan river, 3.85 km N of the village, 1170 m asl. 20 Jan 2017, leg. Z. Egertova & M. Sochor (SAR KH2017.1.20-03; isotype PRM 945777)
Octospora kelabitana
1: Octospora kelabitana, apothecia on thallus of Riccardia spec., image by Z. Sochorová
Apothecia: superficially on the dorsal thallus surface, barrel- or cup-shaped, tapering at the base, light fleshcoloured or orange, sometimes with a pink tint, setose, 180–350 ìm high, 160–400 ìm wide, with numerous setae(35)60–150(190) µm long, basally 7–11(12.5) ìm wide, with one to three septa
Excipulum: textura angularis, cells about 7–23(28) µm; excipular wall laterally composed of few cell layers, about 8–15(23) µm thick; below the hymenium a zone of distinctly smaller, irregularly arranged cells
Paraphyses: filiform, unbranched, apically slightly enlarged to 2.5–4 µm at the apex
Asci: cylindrical to slightly claviform, with a rather long spore-free foot, 98-150 x 10-16 µm, (4-, 7-)8-spored
Ascospores: ellipsoid, colourless, (13.5)14.5-17(18) x 7-8(9) µm, with (1)2(3) guttules to 6.5 µm diam, delicately rough (or seemingly smooth), lying 1- or partly 2-seriate within the ascus
Host: Riccardia ssp.
Infectious structures: 
Habitat: on thallus of Riccardia ssp. in lower-montane primary rainforest
Distribution: Malaysia (Sarawak)

  • Egertova, Z., Döbbeler, P. & Sochor, M. 2017. Octosporopsis erinacea and Octospora kelabitiana (Pezizales) – two new hepaticolous ascomycetes from Borneo. - Mycological Progress 17:103-113. DOI

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