Biodiversidad y Sistemática, Instituto de Ecología, Xalapa, Veracruz, México.
Mycologia. 2012 Jan-Feb;104(1):175-81. doi: 10.3852/11-051. Epub 2011 Sep 13.
A new milkcap species, Lactarius fuscomarginatus, was found in the subtropical region of central Veracruz (eastern Mexico) associated with two relict populations of Fagus grandifolia var. mexicana. The species is characterized macroscopically by its dark pileus and stipe and by its distant and whitish lamellae with blackish to blackish brown edges. A molecular phylogenetic analyses based on ITS and LSU nucDNA sequences confirms the delimitation of this new taxon and places L. fuscomarginatus in subgenus Gerardii. A detailed morphological comparison is given with similar species.
一个新的乳菇属物种，Lactarius fuscomarginatus，在墨西哥东部的韦拉克鲁斯亚热带地区与两个 Fagus grandifolia var. mexicana 的遗留种群有关。该物种宏观特征为其黑色菌盖和菌柄，以及距离较远的白色菌褶，边缘为黑色到黑褐色。基于 ITS 和 LSU nucDNA 序列的分子系统发育分析证实了这个新分类群的界限，并将 L. fuscomarginatus 置于 Gerardii 亚属中。与类似的物种进行了详细的形态比较。
