Data from: The genus Vararia (Russulales, Basidiomycota) in China 1. two new species and two new Chinese records

Two new species, V. bispora and V. montana collected from southern China, are described and illustrated based on morphological characters. V. bispora is characterized by cinnamon-buff to yellowish brown basidiocarps, clamped generative hyphae, ventricose gloeocystidia, 2-sterigmata basidia, and large fusiform to cylindrical basidiospores that are negative in Melzer’s reagent. V. montana is characterized by small pulvinate basidiocarps, clamped generative hyphae, rather strongly dextrinoid dichohyphae, and broadly ellipsoid basidiospores with a peculiar beak-like extension and without reactions in Melzer’s reagent. In addition, V. ambigua and V. amphithallica are reported from China for the first time, and descriptions and illustrations are also provided for these two species.

本研究基于形态特征，对采自中国南方的两个新种——V. bispora与V. montana进行了形态描述并配有图示。其中，V. bispora的鉴别特征为：担子果（basidiocarps）呈肉桂黄褐色至黄褐色，具锁状联合的生殖菌丝（generative hyphae），膨大状粘囊体（ventricose gloeocystidia），具2个担孢子梗的担子（basidia），以及大型纺锤形至圆柱形担孢子（basidiospores），该类担孢子在梅尔泽试剂（Melzer’s reagent）中呈阴性反应。V. montana的鉴别特征为：担子果小型呈垫状，具锁状联合的生殖菌丝，二叉分枝菌丝（dichohyphae）呈强糊精反应，担孢子呈宽椭圆形并带有独特的喙状突起，且在梅尔泽试剂中无显色反应。此外，本研究首次在中国境内报道V. ambigua与V. amphithallica两个物种，并对二者进行了形态描述与图示。