Two new Elaphomyces species (Elaphomycetaceae, Eurotiales, Ascomycota) from eastern USA
アメリカ合衆国東部において採集されたツチダンゴ属 (子嚢菌門 ユーロチウム目ツチダンゴキン科) の 2 新種

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Castellano M. A. (2022) Truffology 5(2): 61–67
Submitted: 12 March 2022
Accepted: 8 September 2022
Published: 31 December 2022

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The hypogeous, sequestrate Elaphomyces has a long taxonomic history in Europe and was formally described by Nees von Esenbeck in 1820 from Europe. Until recently, names of European taxa were assigned to most Elaphomyces specimens in North America due to lack of specialists working on this group and the difficulty of using pre-modern species descriptions. The genus Elaphomyces from North America has received increased attention for the last decade and this has led to numerous new Elaphomyces species being described from eastern North America. Here are described two new species of Elaphomyces discovered in eastern USA, E. gouldhoytii that has similarities to E. septatus and E. maculatus, and E. ramulospinus with similarities to E. muricatus.


ツチダンゴ属は地中生のシクエストレート型の子実体を形成する子嚢菌類で、1820年にヨーロッパから Nees von Esenbeck によって正式記載され、 ヨーロッパにおいて長い分類学史を有する。 近年まで北米のツチダンゴ属の標本の多くに対しヨーロッパ産種の種名が適用されてきたが、 これは北米に本属の専門家が不在で、 かつ、 古典的な記載方法に基づいた種の扱いが困難であったことに起因している。 北米のツチダンゴ属菌は過去10年間ににわかに注目を集め、北米東部から多数の新種が記載された。本研究では、 E. septatusE. maculatusに類似する新種 E. gouldhoytii、 ならびに E. muricatus に類似する新種 E. ramulospinus をアメリカ東部から記載する。


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