De Crop Eske, Hampe Felix, Wisitrassameewong Komsit, Stubbe Dirk, Nuytinck Jorinde, Verbeken Annemieke
a Mycology Research Group, Department of Biology , Ghent University , K.L. Ledeganckstraat 35, 9000 Gent , Belgium.
b Institute of Excellence in Fungal Research, Mae Fah Luang University , 333 Moo 1, Thasud Sub-district, Muang District, Chiang Rai 57100 , Thailand.
Mycologia. 2018 Sep-Oct;110(5):962-984. doi: 10.1080/00275514.2018.1508979. Epub 2018 Sep 21.
The ectomycorrhizal milkcap genus Lactifluus (Russulaceae) is commonly found in tropical and subtropical forests of Southeast Asia. During several sampling expeditions in Thailand, multiple collections of Lactifluus (Lf.) species with pleurotoid or small agaricoid basidiocarps were found. A molecular study was combined with a morphological study, in which the collections were compared with herbarium material. The molecular study indicated that four Thai collections belonged to undescribed species within Lactifluus section Gerardii, as was also the case for herbarium collections of a pleurotoid species from Nepal. One other collection from Thailand appeared closely related to Lf. uyedae, known only from Japan. Five species are described as new in the genus: Lf. auriculiformis, Lf. gerardiellus, Lf. bhandaryi, Lf. pulchrellus, and Lf. raspei.
外生菌根乳菇属（红菇科）常见于东南亚的热带和亚热带森林。在泰国的几次采样考察中，发现了多个具有侧耳状或小型伞菌状担子果的乳菇属（Lf.）物种。将分子研究与形态学研究相结合，其中将采集的样本与标本馆的材料进行了比较。分子研究表明，四个泰国采集样本属于乳菇属 Gerardii 组内未描述的物种，来自尼泊尔的一个侧耳状物种的标本馆收藏也是如此。另一个来自泰国的采集样本似乎与仅在日本发现的乌氏乳菇（Lf. uyedae）密切相关。该属中有五个新物种被描述：耳状乳菇（Lf. auriculiformis）、小 Gerardii 乳菇（Lf. gerardiellus）、班达里乳菇（Lf. bhandaryi）、美丽乳菇（Lf. pulchrellus）和拉斯佩乳菇（Lf. raspei）。
