Department of Plant Biology and Ecology, University of the Basque Country, Bilbao, Spain.
Mycologia. 2012 Nov-Dec;104(6):1443-55. doi: 10.3852/11-378. Epub 2012 Jun 8.
Two new species of Hydnum, characterized by slender Hydnum rufescens-like basidiomes and ovoid to broadly ellipsoid basidiospores, are described from the Iberian Peninsula based on morphological and ITS molecular data. Hydnum ovoideisporum is distinguished by pilei with deep orange tones and strong preference for calcareous soil. It is widespread in the Iberian-Mediterranean area. Hydnum vesterholtii is characterized by its ocher to light ocher pileus, and nearly all the collections were made in the Pyrenees. Both ovoid-spored species are monophyletic well supported groups in the maximum parsimony and Bayesian ITS phylogenies, while the remainder of the samples assigned to H. rufescens s.l. and having globose basidiospores split into six well supported clades. The need to typify the name Hydnum rufescens is discussed, and a provisional key is given for the European taxa of Hydnum.
两种新的 Hydnum 物种，其特征为细长的 Hydnum rufescens 样担子体和卵形到宽椭圆形的担孢子，根据形态学和 ITS 分子数据描述自伊比利亚半岛。Hydnum ovoideisporum 的特征为具有深橙色色调的菌盖和强烈偏好石灰性土壤。它广泛分布于伊比利亚-地中海地区。Hydnum vesterholtii 的特征为其淡黄褐色至浅黄色菌盖，几乎所有的采集都在比利牛斯山脉进行。在最大简约法和贝叶斯 ITS 系统发育树中，这两个卵形孢子物种都是单系的，得到很好的支持，而其余的样本被归入 Hydnum rufescens s.l.，并具有球形担孢子，分为六个得到很好支持的分支。讨论了需要对 Hydnum rufescens 这个名称进行典型化，并给出了欧洲 Hydnum 分类单元的临时关键特征。
