Department of Biology, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA.
Mycologia. 2003 Jan-Feb;95(1):176-83.
Recent studies in the Gomphidiaceae have clearly delimited two genera, Gomphidius and Chroogomphus, both of which are mycorrhizal associates only with the Pinaceae. Ecological studies show Chroogomphus as a mycorrhizal associate of Pinus (Pinoideae), while Gomphidius is associated with the other three gymnosperm subfamilies Piceoideae, Lariceideae, and Abietoideae. The genus Brauniellula, which is based upon the secotioid habit and the presence of orthotropic, statismosporic basidia, falls within Chroogomphus in a clade with ballistosporic species. Brauniellula is, therefore, placed in synonymy with Chroogomphus. Molecular and morphological studies of new material from Nepal, Russia, Korea, and the United States have delimited two new species in each genus. The morphologically identical Chroogomphus rutilus clades are separate, one European and one North American. The relationship of the two genera in the Gomphidiaceae, with their mycorrhizal associates, is related to similar host relationships within other genera in the Suilloid Clade.
近期对杯瑚菌科的研究明确划分了两个属，杯瑚菌属和绒瑚菌属，这两个属都只与松科形成菌根共生关系。生态研究表明绒瑚菌属是松属（松亚科）的菌根共生体，而杯瑚菌属与其他三个裸子植物亚科，即云杉亚科、落叶松亚科和冷杉亚科有关联。基于节孢体的习性和正交、等孢的担子的存在，Brauniellula 属被归入绒瑚菌属的一个分支，与弹孢菌类群相关联。因此，Brauniellula 属被归入绒瑚菌属的同义词。对来自尼泊尔、俄罗斯、韩国和美国的新材料的分子和形态研究，在每个属中都限定了两个新种。形态相同的绒瑚菌属红棕色类群是分开的，一个是欧洲的，一个是北美的。杯瑚菌科这两个属及其菌根共生体的关系与苏铁类群内其他属的类似宿主关系有关。
