Petersen Gitte, Knudsen Henning, Seberg Ole
The Natural History Museum of Denmark, University of Copenhagen, Sølvgade 83 opg. S, DK-1307 Copenhagen K, Denmark.
Cladistics. 2010 Feb;26(1):62-71. doi: 10.1111/j.1096-0031.2009.00279.x. Epub 2009 Sep 1.
The circumscription and delimitation of the agaric family Crepidotaceae and related families in the Agaricales have been analysed using nLSU sequence data and direct optimization. The influence of alignment parameters on clade robustness has been explored, and many clades are found to have a low robustness. Nevertheless, based on clades with a high or moderately high robustness to increased gap costs, a few taxonomic changes are suggested: Crepidotaceae has been amended to include Crepidotus, Episphaeria, Simocybe, Pleuroflammula and Inocybe, the latter genus adding the homoplasious character mycorrhization to the family, Pellidiscus is included in Crepidotus, a position supported by micromorphology, two other genera formerly included in the family, Chromocyphella and Phaeosolenia, are excluded, and a new family, Chromocyphellaceae fam. nov., is erected for them based on fruit body shape, microcharacters, and sequences. Monophyly of Tubariaceae as recently circumscribed was not recovered, but tentatively we accept the genera Tubaria and Phaeomarasmius as members of the family. © The Willi Hennig Society 2009.
利用nLSU序列数据和直接优化方法，对伞菌目蘑菇科（Crepidotaceae）及相关科的范围界定和划分进行了分析。探讨了比对参数对分支稳健性的影响，发现许多分支的稳健性较低。然而，基于对增加空位代价具有高或中等高稳健性的分支，提出了一些分类学上的变化：蘑菇科已修订，包括疣柄菇属（Crepidotus）、球盖菇属（Episphaeria）、拟脆褶菌属（Simocybe）、侧耳火焰菌属（Pleuroflammula）和丝盖伞属（Inocybe），后者属为该科增加了菌根化这一同源特征；盘菌属（Pellidiscus）被归入疣柄菇属，这一位置得到微观形态学的支持；该科之前包含的另外两个属，色杯伞属（Chromocyphella）和暗梭孢伞属（Phaeosolenia）被排除，并基于子实体形状、微观特征和序列为它们建立了一个新科，色杯伞科（Chromocyphellaceae fam. nov.）。最近界定的皮伞科（Tubariaceae）的单系性未得到恢复，但我们暂时接受皮伞属（Tubaria）和褐小皮伞属（Phaeomarasmius）为该科成员。©威利·亨尼希学会2009年。
