Entosthodon elimbatus W.Z. Ma, Shevock & S. He, 2020

Ma, Wen-Zhang, Shevock, James R., He, Si & Liu, Yan, 2020, Entosthodon elimbatus (Bryophyta, Funariaceae), a new species from the subalpine region in Yunnan and E. physcomitrioides new for mainland China, Phytotaxa 451 (2), pp. 103-112 : 108-109

Entosthodon elimbatus W.Z. Ma, Shevock & S. He sp. nov. ( Fig. 2–4 )

Diagnosis:— The new species is similar to Entosthodon buseanus in China, but differs by possessing much shorter setae (less than 5 mm long), larger upper laminal cells (wider than 35 μm vs 25–32 µm), nearly undifferentiated marginal cells, and relatively better-developed endostome.

Type:— CHINA. Yunnan: Gong-shan County, east side of the Mt. Gaoligongshan , about 2km from Nan-Mo- Wang-Shan Pass along trail, on soil in rock fissure, 3590m, 27°41’43” N, 98°27’25” E, 18 Sep., 2013 W . Z . Ma & Shevock 13-5097 (holotype, KUN; isotypes, CAS, CONN, KRAM, MO) .

Figures

FIGURE 2 Entosthodon elimbatus W.Z. Ma, Shevock & S. He. A, dry plants with sporophytes. B–C, upper leaves. D–F, lower leaves. G, transverse section of a leaf. H, laminal cells in the leaf apex. I, laminal cells at leaf base (all prepared from the holotype, W.Z. Ma & Shevock 13-5097, KUN).

FIGURE3 SEM images of Entosthodon elimbatus W.Z. Ma, Shevock & S. He. A–B, spores under different magnifications. C, the verrucose papillae over the surface of spore. D, inner surface of an operculum with broken endostome. E, close-up on capsule mouth. F, external surface of an endostome segment. G, inner surface of an endostome (all prepared from the holotype, W.Z. Ma & Shevock 13-5097, KUN).

FIGURE4 Entosthodon elimbatus W.Z.Ma, Shevock& S. He.A. Exothecial cells in upper capsule.B. Stomatain apophysis.C. Transverse section of exothecial cells at mid capsule. (all prepared from the holotype, W.Z. Ma & Shevock 13-5097, KUN).