Hypocreales » Hypocreaceae » Hypomyces

Hypomyces rosellus

Hypomyces rosellus (Alb. & Schwein.) Tul. & C. Tul., Annales des Sciences Naturelles Botanique 13:12 (1860)

Index Fungorum number: IF 212420

Facesoffungi number: FoF 06015

 

Fungicolous on the fruiting body of Agaricus bisporus. Asexual morph: Conidial fructifications developing as loosely floccose masses of white mycelium bearing robust conidiophores with white spore masses. Conidiophores hyaline, erect, with branches arranged in verticillate whorls, in pairs, and singly, bearing conidia acrogenously on the primary branches or on secondary branches. Phialides hyaline, 30–40 × 3–4.5 μm (x̅ = 36 × 4.2 μm, n = 20) wide basally, and tapering slightly to the tip. Conidia approximately, colorless, broadly ellipsoidal, each having a broad, blunt basal apiculus and appearing broadly rounded at the apex, 3-septate when mature, commonly somewhat constricted at the septa, thin-walled, smooth-walled, 26–33 × 10–13 μm (x̅ = 11.5 × 4.2 μm, n = 30). Sexual morph: Undetermined. (Description from Sun et al. 2019)

Material examined – CHINA, Gan Su Province, on a fruiting body of Agaricus bisporus. 26 July 2016, Liu X. Z. (HMAS 279799), living culture CGMCC 3.19065.

GenBank no. LSU: MH459172, ITS: MH459155, TEF: MH464780 and RPB2: MH464788 (Sun et al. 2019)

 

Figure: Hypomyces rosellus (MFLU 17-1392). a, b White colony on the fruiting body of Agaricus bisporus. c, d Mycelia on the surface of Agaricus bisporus. e–h Conidiophores and conidiogenous cells. i–m Conidiogenous cells with conidia. n, o Conidia. Scale bars: c = 1 mm, d=200 μm, e = 50 μm, f–h =25 μm, i–o= 5 μm. (Source: Sun et al. 2019)

 

Reference:

Sun, J.Z., Liu, X.Z., Jeewon, R., Li, Y.L., Lin, C.G., Tian, Q., Zhao, Q., Xiao, X.P., Hyde, K.D. and Nilthong, S., 2019. Fifteen fungicolous Ascomycetes on edible and medicinal mushrooms in China and Thailand. Asian Journal of Mycology, 2(1), pp.129-169. https://asianjournalofmycology.org/pdf/AJOM_2_1_7.pdf

 

 

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