Department of Biological Sciences, Humboldt State University, Arcata, CA 95521, USA.
Mycologia. 2012 Mar-Apr;104(2):547-56. doi: 10.3852/11-130. Epub 2011 Nov 8.
Three new species of Clavulina (Cantharellales, Basidiomycota) are described from rainforests dominated by ectomycorrhizal trees of the leguminous genus Dicymbe (Fabaceae subfam. Caesalpinioideae) from the central Guiana Shield. Species of Clavulina typically form branched, coralloid basidiomata with amphigenous hymenia. However, the three species described here form resupinate or effuso-coralloid basidiomata, macromorphological forms previously unknown in Clavulina. Macromorphological, micromorphological, habitat and DNA sequence data are provided for each new species. Micromorphological features and DNA sequence data from the second largest subunit of DNA-dependant RNA polymerase II (rpb2) and internal transcribed spacer (ITS) and large subunit (28S) of the ribosomal repeat justify placement of these new species in Clavulina. Comparisons with described Clavulina species and other resupinate taxa within the Cantharellales are provided.
从圭亚那中部盾状地区由豆科（含羞草亚科金合欢族）植物 Dicymbe 属的外生菌根树木主导的雨林中，描述了三个新的 Clavulina 种（鸡油菌目，担子菌门）。Clavulina 物种通常形成分枝状珊瑚状担子果，其生在两面。然而，这里描述的三个物种形成反卷或扩展珊瑚状担子果，这是 Clavulina 中以前未知的宏观形态。为每个新物种提供了宏观形态、微观形态、生境和 DNA 序列数据。来自 DNA 依赖的 RNA 聚合酶 II（rpb2）第二大亚基和核糖体重复内部转录间隔区（ITS）和大亚基（28S）的微观形态特征和 DNA 序列数据证明了这些新物种在 Clavulina 中的位置。与描述的 Clavulina 物种和 Cantharellales 内其他反卷分类群进行了比较。
