Guzmán-Dávalos Laura, Pradeep C K, Vrinda K B, Manoj Kumar A, Ramírez-Cruz Virginia, Herrera María, Villalobos-Arámbula Alma Rosa, Soytong Kasem, Baroni Timothy J, Aime M Catherine
a Departamento de Botánica y Zoología , Universidad de Guadalajara , Apdo. Postal 1-139, Zapopan, Jal., 45101 , Mexico.
b Jawaharlal Nehru Tropical Botanic Garden & Research Institute , Palode, Thiruvananthapuram , 695 562 , Kerala , India.
Mycologia. 2017;109(5):804-814. doi: 10.1080/00275514.2017.1401834. Epub 2018 Jan 18.
A new Asian species of Crepidotus (Basidiomycota, Agaricales), C. asiaticus, is presented based on morphological and nuc rDNA internal transcribed spacer (ITS1-5.8S-ITS2 = ITS) and large subunit (28S) sequence data. This new species, found in India and Thailand, is characterized by the centrally stipitate medium-sized basidiomata, orange to reddish brown pileus, white to brownish orange lamellae, and white stipe. Based on morphology, C. asiaticus is similar to the neotropical C. thermophilus. However, the microscopic characters, especially the size and shape of the basidiospores, can be used to distinguish these two taxa, as well as their geographic distributions. Further, the phylogenetic position of C. asiaticus is unique based on ITS and 28S nuc rDNA sequences. Melanomphalia argipoda, described by Singer from Ecuador, is also a stipitate Crepidotus based on an ITS sequence of the type specimen, so the new combination is proposed here. Phylogenetically, the three species form a monophyletic group with the Asiatic C. asiaticus forming the sister lineage to the neotropical C. argipodus and C. thermophilus.
基于形态学、核糖体DNA内转录间隔区（ITS1-5.8S-ITS2 = ITS）和大亚基（28S）序列数据，报道了蜡蘑属（担子菌门，伞菌目）的一个新的亚洲物种——亚洲蜡蘑。该新物种发现于印度和泰国，其特征为具中生菌柄的中型担子果，菌盖橙色至红棕色，菌褶白色至橙褐色，菌柄白色。基于形态学，亚洲蜡蘑与新热带地区的嗜热蜡蘑相似。然而，微观特征，尤其是担孢子的大小和形状，可用于区分这两个分类单元及其地理分布。此外，基于ITS和28S核糖体DNA序列，亚洲蜡蘑的系统发育位置独特。辛格描述的来自厄瓜多尔的银足黑伞，根据模式标本的ITS序列也是一种具菌柄的蜡蘑，因此在此提出新组合。在系统发育上，这三个物种形成一个单系类群，亚洲蜡蘑形成新热带地区的银足蜡蘑和嗜热蜡蘑的姐妹谱系。
