Savoryellales » Savoryellaceae » Canalisporium

Canalisporium kenyense

Canalisporium kenyense Goh, W.H. Ho & K.D. Hyde, in Goh, Ho, Hyde, Whitton & Umali, Can. J. Bot. 76(1): 148 (1998)

Facesoffungi number: FoF04845


Sexual morph:.Undetermined. Asexual morph: Hyphomycetous, dictyosporous. Conidiophores macronematous, mononematous, unbranched, septate, up to 25 9 3–6 lm, hyaline to pale brown, smooth-walled. Conidiogenous cells holoblastic, monoblastic, integrated, terminal, determinate, hyaline to pale brown, smoothwalled. Conidia acrogenous, solitary, subglobose, flattened, muriform, smooth, pale brown to dark brown, 40–50 9 25–30 9 13–20 lm with 2 straight columns of vertical septa and 4–6 rows of transverse septa, slightly constricted at the septa, apical rows of cells darker than the basal rows, dark and thickly banded at the septa, canals in the septa obscured by dark pigmentation, apex comprising a single cell, the number of cells per conidium varies from 13 to 20, base comprising a single cell, cuneiform, sometimes swollen, thin-walled, pale brown, or comprising three thin-walled, pale brown, small cells in a row.


Material examined: THAILAND, Chiang Rai Province, Muang District, Nang Lae Nai Village, on submerged decaying wood in a freshwater stream, 31 December 2016, Y.Z. Lu, CR01 (MFLU 17–1086, reference specimen designated here); ibid., KUN-HKAS 97477.


GenBank Accession No: ITS = MH701998, LSU =MH701999, TEF1-a = MH708885.


Known hosts and distribution: On decaying wood (Kenya), submerged wood (Hong Kong), decorticated branches of dead tree (China), decaying branches of unidentified plant (China) (Goh et al. 1998; Zhuang 2001; Zhao et al. 2013; Farr and Rossman 2018).


Notes: Our new collection resembles Canalisporium kenyense in morphological characters of the conidiophores, conidiogenous cells and conidia, and their measurements align with those of the holotype (IMI 285428a) (Goh et al. 1998) and other specimens of C. kenyense (Zhao et al. 2013). Therefore, we identify our new collection as C. kenyense which is the first report from Thailand. Phylogenetically, C. kenyense forms a distinct lineage within the genus Canalisporium with strong support (96% ML and 1.00 BYPP). Based on morphological characters and phylogenetic support, we designate our collection MFLU 17–1086 as a reference specimen.



Figure 11. Canalisporium kenyense (MFLU 17–1086, reference specimen). a Colony on substrate. b–e Conidia with attached conidiogenous cells. f–j Conidia. Scale bars a = 200 µm, b = 50 µm, c–j = 20 µm




Phookamsak R, Hyde KD, Jeewon R, Bhat DJ (2019) Fungal diversity notes 929–1035: taxonomic and phylogenetic contributions on genera and species of fungi. Fungal Diversity 95:1–273.




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Supported by 

Thailand Science Research and Innovation (TSRI),

project entitled:

"The future of specialist fungi in a changing climate: baseline data for generalist and specialist fungi associated with ants Rhododendron species and Dracaena species"

(Grant No. DBG6080013)

"Impact of climate change on fungal diversity and biogeography in the Greater Mekong Sub-region"

(Grant No. RDG6130001)


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    1 Center of Excellence in Fungal Research
  • Mae Fah Luang University Chiang Rai
    57100 Thailand
  • 2 Kunming Institute of Botany
  • Chinese Academy of Sciences,
  • Honghe County 654400, Yunnan, China

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