红褶孔牛肝菌属,一个分布于中国热带-亚热带的牛肝菌科新属（英文）

Erythrophylloporus(Boletaceae, Boletales), a new genus inferred from morphological and molecular data from subtropical and tropical China

红褶孔牛肝菌属,是一个基于形态学和多基因系统发育分析建立的具有红色子实层体的牛肝菌科新属,模式种为红褶孔牛肝菌Erythrophylloporus cinnabarinus。红褶孔牛肝菌的主要形态特征为:担子果橙红色至淡黄红色,下延的菌褶受伤后呈淡灰绿色、淡蓝绿色至淡灰蓝色,菌肉鲜黄色,受伤后呈暗紫色、深蓝色至蓝黑色,担孢子光滑,宽椭圆形、椭圆形至卵圆形,囊状体中含有棕褐色色素。基于ITS片段和LSU-tef1-a-rpb1-rpb2片段联合分析的系统发育结果表明,红褶孔牛肝菌属在牛肝菌科系统发育树中呈独立的属级支系存在。本文对其进行了形态描述和特征图示,并讨论了其与表型相关类群的关系。

Erythrophylloporus, a new bolete genus with a red-colored lamellate hymenophore, is erected within the family Boletaceae based on morphology and multigene phylogenetic analyses. Erythrophylloporus cinnabarinus is described as a new species and represents the type of the genus. Morphologically, E. cinnabarinus is distinguished by a combination of reddish orange to yellowish red basidiomes, reddish orange to yellowish red lamellae gradually changing grayish blue or grayish turquoise to grayish green when bruised, vivid yellow context slightly turning dark violet, blackish blue to dark blue when exposed to air, smooth and broadly ellipsoid, ellipsoid to nearly ovoid basidiospores and dark yellowish brown pigmented cystidia. Phylogenetic analyses based on the internal transcribed spacer region（ITS） and the combined sequences of the large subunit nuclear ribosomal RNA（nr LSU）, translation elongation factor 1-alpha（tef1-α）, the largest subunit of RNA polymerase II（rpb1） and the second largest subunit of RNA polymerase II（rpb2） confirm that Erythrophylloporus is an independent generic lineage in the Boletaceae. A detailed description, line drawings and comparisons with phenotypic similar genera are provided.