Hymenochaetales » Hymenochaetaceae » Coltricia

Coltricia perennis

Coltricia perennis (L.) Murrill. in Dai, Y.C., Fungal diversity, 45, 131-343 (2010)

Diagnosis: Fruitbody Basidiocarps annual, centrally stipitate, consistently soft leathery and without distinct odour or taste when fresh. Pilei more or less circular, often confluent with a few adjacent ones, up to 5 cm in diam, 2 mm thick at centre. Pileal surface cinnamon or deep brown, becoming greyish with age, distinctly concentrically zonate, velutinate or tomentose; margin thin, sharp, curved down when dry. Pore surface golden brown to rust-brown; pores angular to round, 34 per mm; dissepiments thin, entire or slightly lacerate. Context rust-brown, coriaceous, up to 0.5 mm thick. Tubes greyish brown, distinctly paler than context, soft corky to slightly brittle when dry, up to 1.5 mm long. Stipe dark reddish brown, corky, velutinate, up to 2 cm long, 3 mm thick. Hyphal structure Hyphal system monomitic; generative hyphae simple septate; tissue darkening but otherwise unchanged in KOH. Context Contextual hyphae pale yellowish to rust-brown, thin- to fairly thick-walled with a wide lumen, occasionally branched, with a more or less regularly arranged; hyphae at upper surface variably CB+, 59 μm in diam; hyphae in stipe rust-brown, fairly thick-walled with a wide lumen, rarely branched, regularly arranged, CB, 610 μm in diam. Tubes Tramal hyphae pale yellowish to yellowish brown, thin- to thick-walled with a large lumen, occasionally branched, loosely parallel along the tubes, more or less CB+, 3.55.5 μm in diam. Basidia broadly clavate, with four sterigmata and a simple septum at the base, 1620× 6.58.5 μm; basidioles in shape similar to basidia, but slightly smaller. Spores Basidiospores ellipsoid, pale yellowish, thick-walled, smooth, IKI, CB+, (6–)6.59(–10)×(4–)4.15.1(–6) μm, L=7.41 μm, W=4.7 μm, Q=1.491.67 (n=90/3).

Index Fungorum Number: IF356793

Notes: Coltricia perennis usually grows on mineral soil in coniferous forests. Sometimes it may be confused with Onnia tomentosa (Fr.) P. Karst., but the latter species has hyaline and thin-walled basidiospores. In addition, Onnia tomentosa has large and dark brown hymenial setae, which make it easy to distinguish it in the microscope.

Figure 1. Basidiocarps of Coltricia perennis

Figure 2.  Microscopic structures of Coltricia perennis. a basidiospores; b basidia and basidioles; c hyphae from trama; d hyphae from context



Dai, Y.C. (2010). Hymenochaetaceae (Basidiomycota) in China. Fungal diversity, 45, 131-343.


About Basidiomycota

The webpage Basidiomycota provides an up-to-date classification and account of all genera of the phylum Basidiomycota.


Supported by 

Thailand Science Research and Innovation (TSRI)

project entitled:

"Macrofungi diversity research from the Lancang-Mekong Watershed and surrounding areas"

(Grant No. DBG6280009)


  • Email: basidio.org@yahoo.com
  • Addresses:
    Mushroom Research Foundation, 292 Moo 18, Bandu District,
    Muang Chiangrai 57100, Thailand
  • The State Key Lab of Mycology, Institute of Microbiology, Chinese Academy of Sciences, No.3 1st Beichen West Rd., Chaoyang District, Beijing 100101, P.R. China

Published by the State Key Lab of Mycology, Institute of Microbiology, Chinese Academy of Sciences and
Mushroom Research Foundation
Copyright © The copyright belongs to the Curators. All Rights Reserved.