Phomatosporales » Phomatosporaceae » Phomatospora

Phomatospora berkeleyi

Phomatospora berkeleyi Sacc

Index Fungorum number: IF240042

Sexual morph: Ascomata 174–182 ´ 172–176 µm, scattered, immersed, globose, ostiolate, with a short beak protruding from epidermis, membranous, light brown, thickened in upper regions by black layer of amorphous material around the beak. Beak short 52–58 ´ 40–48 µm, central, dark brown to black, conical, periphysate. Peridium 5–10 µm thick, composed of 5 or 6 layers of compressed and elongated cells; cells 5–7 ´ 1–2 µm, textura epidermoidea in surface view, textura angularis in longitudinal section. Paraphyses not seen. Asci 64–80 ´ 3–6 µm, in several fascicles, unitunicate, cylindrical or broadly cylindrical, with an apical refractive ring, staining blue in aqueous cotton blue,J-, with roundly truncated apex, thin walled, with eight overlapping uniseriate ascospores. Ascospores 8–10 ´ 3–5 µm, ellipsoid with rounded ends, single celled, hyaline, biguttulate , longitudinally striate, with rounded bipolar gelatinous caps; caps 1.5–2.5 µm diam, visible when mounted in KOH. Asexual morph: Undetermined

Specimen examined: AUSTRALIA, Queensland, submerged wood in stream (Vijaykrishna and Hyde 2006); USA, Illinois, Tinley Park Forest Preserve, Typha pond, on submerged stems of Typha latifolia; Wisconsin, Trout lake, on submerged stems of Carex comosa, Big Muskellunge lake, on submerged stems of Scirpus brevicaudatus, Allequash lake, on submerged stems of Typha latifolia (Fallah and Shearer 1998)

Notes: Holotype K(M) 49573, other specimens were collected from freshwater: ILLS 53088, ILLS 53089, ILLS 53091. Sequence data is not available. Phomatospora berkeleyi was originally collected from dead stalks of Solanum on terrestrial habitats (Saccardo 1875). Fallah and Shearer (1998) collected this species from freshwater habitats and provided descriptions and illustrations.

 

Fig. Phomatospora berkeleyi (ENGLAND, Gloucestershire, dead stalks of Solanum sp., M.J. Berkeley, K(M): 49573, isotype). a-d. Herbarium material. e. Appearance of ascomata on host substrate. f. squash mount of ascoma. g. Peridium. i. Ascus (redrawn from Fallah & Shearer 1998). h, j-n. Ascospores. Scale bars: e, f = 100 µm, g = 20 µm, h, j-n = 3 µm, i = 10 µm (photo grabbed from Hyde et al. 2020)

 

References:

Vijaykrishna D, Hyde KD (2006) Inter- and intra stream variation of lignicolous freshwater fungi in tropical Australia. Fungal Divers 21, 203–224

Fallah PM, Shearer CA (1998) Freshwater Ascomycetes: Phomatospora spp. from lakes in Wisconsin. Mycologia 90:323–329

Hyde KD, Norphanphoun C, Maharachchikumbura SSN, Bhat DJ et al. (2020) Refined families of Sordariomycetes. Mycosphere 11, 305–1059

Saccardo PA (1875) Fungi V enetin ovi vel critici.S eries II. NuovoGiorn. Bot. Ital. 7, 299–329

 

Recent Genus

1
Neochlamydotubeufia
Neohelicomyces

Recent Species

Neohelicomyces submersus
Neohelicomyces hyalosporus
Neohelicomyces grandisporus