Fungalpedia – Note 1880, Kathistes

 

Kathistes. Malloch & M. Blackw.

Citation when using this data: Hyde KD et al. 2020 (in prep.) – Fungalpedia, Ascomycota.

Index FungorumFacesoffungiMycoBankGenBank, Fig 1

Classification: KathistaceaeOphiostomatalesDiaporthomycetidaeSordariomycetesPezizomycotinaAscomycotaFungi

 

Notes – Kathistes was introduced as the type genus in Kathistaceae by Malloch & Blackwell (1990), which was originally described with three species (K. analemmoides, K.  calyculata, K. fimbriata). The genus is characterized by long-necked, brown to dark ascomata, transparent at the base, and germinating ascospores produced by budding yeast-like cells (Malloch & Blackwell 1990).

 

Type species: Kathistes calyculata Malloch & M. Blackw.

Other accepted species: Species Fungorum – search Kathistes.

 

image

 

Figure 1 – Kathistes spp. (a-i: Kathistes calyculata, j, k: K. fimbriata, l-r: K.  analemmoides, redrawn from Malloch & Blackwell 1990). a Ascoma with dark neck and hyaline base. Asci. c Ascospores. Ascospores after 4 h on agar Germ tubes have developed by this time. e-g Ascospores after 19, 27, and 42 h on agar, respectively. Yeast cells have begun to develop. h Yeast cells after several days. i Sporidioma showing single-celled wall at base and sporidiolae filling hollow darkened neck cell. j Ascoma with dark neck and hyaline base. Three ascospores illustrating differences in septation, size, and pigmentation. Ascomata. Asci. Ascospores from an extruded spore mass. One ascospore has begun producing yeast cells. o-q Three ascospores, each drawn at 2, 3, 4, and 18 h after being placed on agar r Sporidioma showing single wall layer of base and darkened hollow neck cell.

 

 

References

Malloch D, Blackwell M. 1990 – Kathistes, a new genus of pleomorphic ascomycetes. Canadian Journal of Botany 68, 1712–1721.

 

Entry by

Kevin David Hyde, Institute of Plant Health, Zhongkai University of Agriculture and Engineering, Haizhu District, Guangzhou 510225, P.R. China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, Mushroom Research Foundation, 128 M.3 Ban Pa Deng T. Pa Pae, A. Mae Taeng, Chiang Mai 50150, Thailand, Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand, Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, Yunnan, P.R. China, School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand, World Agroforestry Centre, East and Central Asia, Kunming 650201, Yunnan, P.R. China

 

Published online 28 February 2020