Dictyosporella hydei H.Y. Song & D.M. Hu, 2018

Song, Hai-Yan, Huo, Guang-Hua & Hu, Dian-Ming, 2018, Dictyosporella hydei sp. nov., an asexual species from freshwater habitats in China, Phytotaxa 358 (2), pp. 181-188 : 184-185

Dictyosporella hydei H.Y. Song & D.M. Hu , sp. nov. Figure 2

Faces of fungi number: FoF 03953; MycoBank number: MB 824027

Etymology:— hydei , in the honor of the eminent mycologist Kevin D. Hyde.

Sexual morph: Undetermined. Asexual morph: Sporodochia on natural substrata punctiform, black brown, solitary; under the stereo microscope circular, moriform patches are visible, up to 230 μm diam, composed of densely aggregated conidia which are blackish and glistening. Mycelium mostly immersed in substrata, comprising branched, septate, subhyaline to pale brown hyphae. Conidiophores macronematous, mononematous, closely packed together to form the sporodochia, thin-walled, 1–5-septate, branched, smooth, slightly flexuous, pale yellowish-brown, ca. 35 × 5 μm. Conidiogenous cells monoblastic, holoblastic, integrated, terminal, determinate, pale yellowish-brown, cylindrical, or often swollen to subglobose, 2–5 μm wide at the base, 3–10 μm long. Conidia solitary, globose to broadly cylindrical, muriform, with oblique septa, slightly constricted at the septa, smooth, fuscous, brass colored, 22–50 × 15–26 μm (x = 33 × 20.2 μm, n = 30), acrogenous, comprising multiple angular, subglobose cells, thin-walled, with a cuneiform protruding hilum. Conidial secession schizolytic.

Specimens examined:— CHINA. Yunnan: Mengla, Longlin Nature Reserve , in a small stream (N21º32’, E101º29 º; 620 m elev.), on submerged wood, 2 April 2009, D.M. Hu, IFRD 021-044 (holotype), ex-type culture IFRDCC 3075 .

Figures

FIGURE 2 Dictyosporellahydei(holotype).a.Sporodochium on submergedwood.b.Squash mountof asporodochium.c–e.Conidiophores and conidia. f–j. Conidia. Scale bars: a = 100 μm, b = 50 μm, c–j = 5 μm.