Two new species of Amanita section Amanita from Central China
Two new species of Amanita section Amanita from Central China
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华中鹅膏科鹅膏菌二新种
DOI：
10.1007/s11557-022-01828-7
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发表时间：
2022-09-01
影响因子：
2.4
通讯作者：
Yang, Zhu L.
中科院分区：
文献类型：
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作者：
Su, Yu-Ting;Cai, Qing;Yang, Zhu L.
根据分子和形态证据，提出了采自中国中部的鹅膏组鹅膏菌的两个新种：胶状鹅膏菌和鹅膏菌。鹅膏菌担子小，担孢子宽椭圆形(10-11.5×7-9μm)。鹅膏菌的特征是橘红色的菌毛，上面覆盖着淡黄色的圆锥形残体和宽椭圆形的担孢子(9-12×7-10μm)。多个基因座(ITS、nrLSU、RPb2、TEF1-α和TUB2)的系统发育研究表明，菜豆根结线虫与亚球形木霉、狭叶木霉、拟花药木霉、灰花木耳和白花木霉等分支关系密切，而木本木霉与细毛木霉是姊妹种。这两个新种被描述，图解，并与密切相关和形态相似的种进行比较。
Amanita collariata and A. subparcivolvata, two new species of A. section Amanita from Central China, were proposed here based on both molecular and morphological evidences. Amanita collariata is characterized by its small basidiomata and broadly ellipsoid basidiospores (10–11.5 × 7–9 μm). Amanita subparcivolvata is characterized by its orange-red pileus covered with yellowish, conical volval remnants and broadly ellipsoid basidiospores (9–12 × 7–10 μm). Multi-locus (ITS, nrLSU, RPB2, TEF1-α, and TUB2) phylogenetic studies indicated that A. collariata is closely related to the clade comprising A. subglobosa, A. pantherina, A. pseudopantherina, A. griseopantherina, and A. albocreata, while A. subparcivolvata is sister to A. parcivolvata. These two new species are described, illustrated, and compared with closely related and morphologically similar species.