半小菇屬（學名：Hemimycena）是小菇科的一個屬，於1938年由德國真菌學家洛夫·辛格描述發表[1]。本屬蕈類的子實體多呈白色，小而脆弱，表面常覆有粉被或軟毛（Pubescence），且蕈傘上具有菌蓋皮[3]。其組織與擔孢子的梅澤試劑檢測結果均無澱粉樣蛋白[3]。本屬蕈類多分佈於草原與闊葉林中，在針葉林中則較少出現[3]。截至2008年，本屬共記錄有約50種物種[4]。2002年，一項大規模的分子種系發生學研究以核糖體大次單元的基因序列分析傘菌目中各類群的親緣關係，發現半小菇屬與小菇科其他屬間的親緣關係並不接近，不與其形成共同支序，而是與掛鐘菌親緣關係最近，兩者組成一單系群[5]。
物種
以下為部分半小菇屬的物種[6]。
- Hemimycena albicolor
- Hemimycena amazonica
- Hemimycena angusta
- Hemimycena angustispora
- Hemimycena arctii
- Hemimycena aurantiaca
- Hemimycena brevispora
- 枝生半小菇 Hemimycena candida
- Hemimycena cephalotricha
- Hemimycena conidiogena
- Hemimycena cretacea
- Hemimycena crispata
- Hemimycena crispuliformis
- Hemimycena crispuloides
- Hemimycena cryptomeriae
- 帽形半小菇 Hemimycena cucullata
- Hemimycena cyphelloides
- 嬌柔半小菇 Hemimycena delectabilis
- Hemimycena depauperata
- Hemimycena diplocystis
- Hemimycena epibiotica
- Hemimycena epichloë
- Hemimycena globulifera
- 細麗半小菇 Hemimycena gracilis
- Hemimycena guanacastensis
- Hemimycena gypsella
- Hemimycena herrerae
- 硬毛半小菇 Hemimycena hirsuta
- Hemimycena ignobilis
- Hemimycena immaculata [7]
- 印度半小菇 Hemimycena indica
- Hemimycena juncicola
- 半小菇 Hemimycena lactea
- Hemimycena longicystis
- [[Hemimycena longipilosa [8]]]
- Hemimycena longipleurocystidiata [9]
- Hemimycena mairei (E.-J.Gilbert) Singer, 1943，基異名：Omphalia mairei E.-J.Gilbert
- Hemimycena marbleae
- Hemimycena mauretanica
- Hemimycena micropapillata
- Hemimycena minutissima
- Hemimycena naranjana
- Hemimycena nebulophila
- Hemimycena nitriolens
- Hemimycena nivea
- Hemimycena nothofagi
- Hemimycena ochrogaleata
- Hemimycena patagonica
- Hemimycena perone
- Hemimycena persimilis
- Hemimycena phlomisii
- Hemimycena pithya
- Hemimycena pithyophila
- Hemimycena pleurotiformis
- Hemimycena praedecurrens
- Hemimycena pseudoconidiophora
- Hemimycena pseudocrispata
- Hemimycena pseudocrispula
- Hemimycena pseudogibba 假白半小菇
- Hemimycena pseudolactea
- Hemimycena reducta 里肯半小菇
- Hemimycena rickenii
- Hemimycena seegeri
- Hemimycena sordida
- Hemimycena stiriispora 近狹孢半小菇
- Hemimycena subangustispora T. Bau & L.N. Liu
- Hemimycena subglobispora
- Hemimycena subimmaculata
- Hemimycena substellata
- Hemimycena subtilis
- Hemimycena subtranslucens
- Hemimycena subtropicalis
- Hemimycena tanjae
- Hemimycena tortuosa
- Hemimycena truncicola
參考資料
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