Perennicordyceps Matočec & I. Kušan, Ascomycete.org 6(5): 129 (2014)

MycoBank number: MB 810775; Index Fungorum number: IF 810775; Facesoffungi number: FoF 10734;

Parasites and pathogens of insects and fungi. Sexual morph: Stromata cylindrical to clavate, single or several, branched, apically tapered or inflated, pointed or lanceolate, whitish, yellow, ochre to brown, with stipe. Stipe cylindrical to clavate, single or several branched, ochre to brown. Fertile part cylindrical to clavate, whitish, yellow, ochre to brown, distinct or not distinct with stipe. Perithecia superficial, globose to ovoid to pyriform, yellowish to yellow, perpendicular to rarely slightly oblique in relation to the surface, scattered or gregarious, concentrated almost over the whole aerial part of the stroma or on its subapical part, absent from naked, sterile, tapered, pointed tip. Asci filiform, hyaline, with apical cap. Apical cap thin or thick. Ascospores filiform, hyaline, approximately as long as asci, septate and typically disarticulating into secondary ascospores. Secondary spores cylindrical, hyaline (adapted from Ban et al. 2009, Matočec et al. 2014). Asexual morph: Hyphomycetous. hirsutella-like or acremonium-like. Conidiophores phialidic, hyaline, produced on aerial mycelium, also on sporodochia or directly on stromata. Phialides 2–10 arising from irregularly branched or quasi-verticillate conidiophores, phialides produce up to 10 conidia enveloped in a common sheath. Conidia globose to ellipsoid or limoniform to fusiform, hyaline, smooth, 1-celled (adapted from Ban et al. 2009, Matočec et al. 2014).

Type species: Perennicordyceps prolifica (Kobayasi) Matočec & I. Kušan. Fig. 10

Notes: This genus was introduced by Matočec et al. (2014) to accommodate four species of Polycephalomyces. It is characterised by superficial, ovoid perithecia and cuboid to narrowly prismatic part spores and hirsutella-like or acremonium-like asexual morphs (Matočec et al. 2014). A new species, Pe. lutea, is sister with Pe. paracubiodea in the phylogenetic tree with high support value (Fig 2: 100% ML / 1.00 PP; Fig 3: 99% ML / 1.00 PP; Fig 11: 97% ML / 1.00 PP). Perennicordyceps lutea was isolated from Ophiocordyceps sinensis, collected from China. The new species is characterised by its yellow colony, one-type of phialide, and globose conidia. A new combination, Pe. elaphomyceticola, is proposed based on morphology and phylogentic analysis in this study.

Ecological and economic significance of Perennicordyceps: Perennicordyceps have been known as entomogenous fungi. This is the first time the genus is reported as fungicolous.

Distribution: Japan, China, Sir Lanka, Austria, Croatia, France, UK, Netherlands, USA (Matočec et al. 2014)

Conclusion: Illustrate the type species (Fig. 10), one new species, one new combination, one new host records are proposed.

Fig. 10. Perennicordyceps prolifica (b–e: Redrawn from Kobayasi and Shimizu 1963, a, f–h: Redrawn from Ban et al. 2009). a Overview of Perennicordyceps prolifica. b Peritheica of ascus. c Contex and medulla. d Medulla. e Surface of perithecia. f Secondary spores. g Apical cap. h Acremonium-like phialide. i Hirsutella-like phialides. j Conidiophore. Scale Bars: b = 100 µm, c, d = 10 µm, e–h = 5 µm.

Species

  • Perennicordyceps prolifica