Xylaria botuliformis, a small-ascospored species with a reticulately cracked stromatal surface

臘腸形炭角菌：一種子座表面具有網格狀裂紋的小孢子炭角菌

朱宇敏(Yu-Ming Ju) ； 謝慧美(Huei-Mei Hsieh)

《Fungal Science》 34卷 (2019/12) Pp. 1-8

摘要

Xylaria botuliformis is characterized mainly by small stromata with a wrinkled and finely reticulately cracked surface and minute ascospores. These features suggest the placement of X. botuliformis in the X. corniformis group. Phylogenetic analyses based on sequences from several DNA loci clustered X. botuliformis together with X. curta, a member of the X. corniformis group, and thus agree with the morphological features. The holotype of X. botuliformis is overmature, and we thus designate an epitype for it.

關鍵字

Ascomycota ； phylogeny ； taxonomy ； Xylariaceae

並列摘要

臘腸形炭角菌具有小型子座、皺紋及細網格狀裂紋在子座表面、小尺寸子囊孢子。這些特徵顯示其與角狀炭角菌（X. corniformis）及其類似種有相似的形態。根據數段核酸序列所進行的親緣關係分析，臘腸形炭角菌與白鱗炭角菌（X. curta）聚成一群；白鱗炭角菌亦與角狀炭角菌有相似的形態。臘腸形炭角菌之全模式（holotype）標本過於成熟，我們因此指定一份標本為其附加模式（epitype）。

並列關鍵字

子囊菌門 ； 分類學 ； 炭角菌科