We describe a new species of Rhodocybe, R. brunneoaurantiaca, from West Bengal, India. Field photographs of the collected basidiocarps are provided and the new species is compared with its allied taxa based on morphological and molecular (nrITS and nrLSU sequence) data. Rhodocybe brunneoaurantiaca is characterized by clitocyboid basidiomata with a small (25–41 mm), infundibuliform, brownish orange to brown pileus; decurrent, brittle, greyish orange to light brown lamellae; a smooth light brown to brown stipe; ellipsoid to broadly ellipsoid basidiospores; 2–4-spored basidia; cylindrical to slender clavate, flexuous cheilocystidia; and unique sequences. A full description with illustrations, and phylogenetic trees showing the placement of the new species based on molecular sequence data are provided as well as an artificial key to the reported species of Rhodocybe from India.

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Rhodocybe brunneoaurantiaca (sect. Rufrobrunnea, Entolomataceae): 来自印度的一个新种

我们描述了一种来自印度西孟加拉邦的新种Rhodocybe，R. brunneoaurantiaca。提供了收集的担子果的野外照片，并根据形态和分子（nrITS 和 nrLSU 序列）数据将新物种与其近缘分类群进行了比较。红豆杉以阴蒂圆状担子体为特征，具有小（25-41 毫米）、漏斗状、棕橙色至棕色菌盖；下延的，脆的，灰橙色到浅棕色薄片；光滑的浅棕色到棕色的菌柄；椭圆形至宽椭圆形担子孢子；2-4 孢子囊；圆柱形到细长棒状，弯曲的唇囊；和独特的序列。提供有插图，并表示基于分子序列数据的新物种的放置进化树的完整描述以及人工关键的报道种Rhodocybe来自印度。