Lanmaoa rubriceps, a new bolete from tropical China
Lanmaoa rubriceps, a new bolete from tropical China
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DOI：
10.11646/phytotaxa.347.1.4
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发表时间：
2018-04-10
期刊：
影响因子：
1.1
通讯作者：
Zeng, Nian-Kai
中科院分区：
文献类型：
--
作者：
Chai, Hui;Liang, Zhi-Qun;Zeng, Nian-Kai
报道了海南省产的一新种--红头兰毛孢（Lanmaoa rubriceps）。其形态特征为红色、深红色至橙红色的菌盖，幼时具有充满孔的子实梗，孔染色为蓝色，然后在受伤时变为红棕色，菌柄表面染色为蓝色，以及具有未膨胀菌丝的表皮菌柄。对28 S基因部分、nuc rDNA内转录间隔区（ITS）和翻译延伸因子1-α（tef 1-alpha）部分DNA序列的系统发育分析也证实了L.在Lanmaoa中，红头龙形成了一个独立的谱系。并对新鲜的担子瘤进行了详细的描述、彩色照片和显微结构的线条图。值得注意的是L. rubriceps福尔斯在遗传学上属于兰茅属（Lanmaoa），但新种的形态特征符合蓝牛肝菌属（Cyanoboletus）的概念。分子和形态学结果不一致的原因是两个最接近的属共享重叠的形态特征和Lanmaoa的最重要的诊断特征是不恒定的。根据这些事实，将Lanmaoa和Cyanoboletus归为一个属似乎是合理的。
Lanmaoa rubriceps (Boletaceae, Boletales) is described as a new species from Hainan Province, a tropical region of China. It is morphologically characterized by a red, crimson to orange-red pileus, a hymenophore with stuffed pores when young, pores staining blue and then changing to red-brown when injured, stipe surface staining blue when injured, and a trichodermal pileipellis with uninflated hyphae. Phylogenetic analyses of DNA sequences from part of the 28S gene, the nuc rDNA internal transcribed spacer (ITS) region, and part of the translation elongation factor 1-alpha gene (tef1-alpha) also confirmed that L. rubriceps forms an independent lineage within Lanmaoa. Consequently, a detailed description, color photos of fresh basidiomata and line-drawings of microstructures are presented. It's worth noting that L. rubriceps falls into the genus Lanmaoa phylogenetically but morphological features of the new species match the concept of the genus Cyanoboletus. The reason for the incongruence of molecular and morphological results is that the two most closely related genera share overlapping morphological features and the most important diagnostic feature of Lanmaoa is not constant. In light of these facts, lumping of Lanmaoa and Cyanoboletus into a single genus seems justified.