Abstract

The septal structure at ascal base in the Ascobolaceae and the tribe of Ciliarieae(Humariaceae sensu Rifai) has a very similar hemispherical band as Otideae (Humariaceae). However, the septal structures of these three groups of cup fungi show different types of septal development, namely ascoboloid-, scutellinioid-, and otideoid-type. Species showing the same types of septal structures in the pores of mature asci , but exhibiting transitional differences in their early development stages , indicate a possible monophyletic origin of these groups. The study of septal development may be potentially of great use in the study of phylogeny in the Pezizales.

中文摘要

在Ascobolaceae科及Humariaceae科Ciliarieae亞科的子囊底部的隔板構造與Humariaceae科Otideae亞科的拱形隔板構造十分類似。但其形成過程並不相同，可分為ascoboloid，scutellinioid，和otideoid三型。子囊菌類在成熟的子囊底部具有相同的隔板構造，但在初期的分化形成過程卻顯示出差異性，此種現象顯示這些子囊菌類可能由單一族群演化而來。有關子囊底部及再生菌絲隔板形成的過程可能有助於盤菌目演化學上的研究。

Keyword: Septal development, Evolution, Pezizales.