橙脐菇属(蜡伞科,蘑菇目)在中国的发现及一新种描述  

The finding of the rare genus Haasiella(Hygrophoraceae,Agaricales)in China,with description of a new species

作　　者：朱学泰[1] 张译丹 蒋长生 张晋铭 刘丽娟 ZHU Xuetai;ZHANG Yidan;JIANG Changsheng;ZHANG Jinming;LIU Lijuan(College of Life Sciences,Northwest Normal University,Lanzhou 730070 Gansu,China;Management Bureau of Liancheng National Nature Reserve,Yongdeng 730333,Gansu,China)

机构地区：[1]西北师范大学生命科学学院,甘肃兰州730070 [2]甘肃省连城国家级自然保护区管理局,甘肃永登730333

出　　处：《菌物学报》2023年第9期1838-1847,共10页Mycosystema

基　　金：国家自然科学基金(31770588);甘肃连城国家级自然保护区森林大型真菌分类调查研究项目(2016kj001);连城保护区大型真菌资源二期调查及野生食用菌驯化研究项目。

摘　　要：橙脐菇属Haasiella是蜡伞科Hygrophoraceae下一罕见的属,此前该属仅含2个欧洲种,分别为H.venustissima和H.splendidissima。本文对8份采自中国甘肃省连城自然保护区的标本进行了系统发育学和形态学研究,结果证实这些标本属于橙脐菇属,代表了1个新物种,命名为中华橙脐菇H.sinensis。该种形态与欧洲种相似,子实体小型,菌盖呈浅橙色,成熟后中央凹陷呈脐状,担孢子经甲酚蓝染色后呈红色;与后者的主要区别是菌丝具锁状联合,同一子实体具有1个、2个和4个小梗的担子,子实体生于林中腐殖土上。Haasiella is a rare genus in Hygrophoraceae,which includes only two species reported from Europe thus far,H.venustissima and H.splendidissima.Based on studies of phylogeny and morphology,eight specimens collected from Liancheng Nature Reserve,Gansu Province,western China were confirmed as a new species in genus Haasiella and named as H.sinensis.This species is morphologically similar to European species in having small basidiomata with pale orange umbilicate pileus and metachromatic spores distinctly red in cresyl blue.However,H.sinensis is different in having tetrasterigmatic,sometimes monosterigmatic or bisterigmatic basidia in the same fruitbody;clamp connections present throughout the secondary mycelium and the fungus grows on soil humus in the forest.

关 键 词：蜡伞科 橙伞属 分类学 新记录属 

分 类 号：Q949.32[生物学—植物学]