Herrera Mariana, Bandala Victor M, Montoya Leticia
Red Biodiversidad y Sistemática, Instituto de Ecología A.C., P.O. Box 63, Xalapa, Veracruz, 91000, México.
MycoKeys. 2018 Mar 20(32):91-109. doi: 10.3897/mycokeys.32.22838. eCollection 2018.
During explorations of tropical oak forests in central Veracruz (eastern Mexico), the authors discovered a species that produces basidiomes with strikingly violet pileus and a hymenium with yellow, raised gill-like folds. It is harvested locally and valued as a prized edible wild mushroom. Systematic multiyear sampling of basidiomes allowed the recording of the morphological variation exhibited by fresh fruit bodies in different growth stages, which supports the recognition of this species from others in the genus. Two molecular phylogenetic analyses based on a set of sequences of species of all major clades in , one including sequences of the transcription elongation factor 1-alpha (tef-1α) and a combined tef-1α and nLSU region (the large subunit of the ribosome), confirm the isolated position of the new species in a clade close to from USA, in the subgenus Cantharellus. Detailed macroscopic and microscopic descriptions, accompanied by illustrations and a taxonomic discussion are presented.
在对墨西哥东部韦拉克鲁斯中部的热带橡树林进行考察期间,作者发现了一个物种,该物种产生的担子果具有极为醒目的紫罗兰色菌盖,其菌褶有黄色、凸起的鳃状褶皱。它在当地被采摘,是一种备受珍视的可食用野生蘑菇。对担子果进行多年的系统采样,得以记录不同生长阶段新鲜子实体所呈现的形态变异,这有助于将该物种与该属中的其他物种区分开来。基于该属所有主要分支物种的一组序列进行的两项分子系统发育分析,其中一项包括转录延伸因子1-α(tef-1α)序列以及tef-1α和nLSU区域(核糖体大亚基)的组合序列,证实了该新物种在鸡油菌属亚属中与来自美国的[某物种]相近的一个分支中的孤立位置。文中给出了详细的宏观和微观描述,并配有插图以及分类学讨论。