Dichotomopilus X. Wei Wang, Samson & Crous, Stud. Mycol. 84: 185 (2016)
Index Fungorum number: IF 818840; MycoBank number: MB 818840; Facesoffungi number: FoF 08466; 12 species with sequence data.
Type species – Dichotomopilus indicus (Corda) X. Wei Wang & Samson.
Notes – The genus Dichotomopilus was established by Wang et al. (2016a) to include two new species, D. pseudofunicla and D. pseudoerectus, and another ten species transferred from Chaetomium. A new collection of D. ramosissimum was recorded on Clematis vitalba in the UK by Phukhamsakda et al. (2020). The genus is characterised by superficial, sphaerical, ellipsoid or ovate, ostiolate ascomata, with seta-like, branched, often ornamented terminal hairs, unbranched, seta-like lateral hairs tapering towards the apex, clavate to ovate, pedicellate, evanescent asci and fasciculate brown, ovate, bilaterally flattened ascospores attenuated at one or both ends and with apical or slightly subapical germ pores. Asexual morphs are undetermined. Dichotomopilus ramosissimus is illustrated in this entry (Fig. 66).
Figure 66 – Dichotomopilus ramosissimus (Material examined – INDIA, Andaman and Nicobar Islands, North Andaman, Diglipur, Near Sita Nagar (13˚11’14.2” N 92˚53’11” E), isolated on decaying twig of Dolichandrone spathacea, 17 May 2018, M. Niranjan & V.V. Sarma, PUFNI 18725, (AMH-10059). a-c Ascomata on host. d, e Mature ascomata in lactophenol mount. f, g Terminal ascomatal hair. h Ascospores. i-j Colonies on malt extract agar. Scale bars: d = 200 μm, e = 100 μm, f = 20 μm, g, h = 10 μm.
Species