Dermea rhytidiformans A. Funk & Kuijt
no common name
Dermateaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
no common name
Dermateaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Photograph
Species Information
Summary:
Features include a tiny dark brown fruitbody on cork ridges of Subalpine Fir trees with cork bark disease, a brownish color change in the liquid when mounted in dilute KOH, and microscopic characters. Dermea rhytidiformans causes cork-bark disease of Subalpine Fir.
Chemical Reactions:
apothecia "mounted in dilute KOH produce a brownish discoloration in the liquid"
Microscopic:
spores 18-28 x 8-11 microns, elliptic to oval or irregular, light brown, aseptate; asci 8-spored, 130-155 x 14-17 microns, cylindric-clavate, short-stemmed, pore not staining blue in iodine; paraphyses "slightly longer than asci, forming an epithecium strongly encrusted with brown granules", filiform [thread-like], branching; macroconidia 25-65 x 3.5-5.5 microns, "sickle-shaped to almost fusoid", colorless to light brown, 0-3-septate, "frequently with one or two swollen cells"; microconidia 10-22 x 1.5 microns, "filiform, strongly curved at one end", colorless, 1-celled
Notes:
It was described from BC.
Habitat and Range
Habitat
superficial on the cork ridges of cork bark of Abies lasiocarpa (Subalpine Fir), fruiting perennially from the sides of the ridges: the fruitbodies are "at first slightly erumpent through the outer cork cells, but then appearing superficial, though sometimes slightly hidden in small cracks"; apothecia aggregated or single, superficial, "appear to be prime in late summer and autumn and occur intermixed with the conidial state"; conidial fruitbodies "single or aggregated, superficial on cork ridges or erumpent through smooth bark in early infections", "usually very abundant and present throughout the year"
Status Information
Synonyms
Synonyms and Alternate Names:
Corticium sordida P. Karst.
Peniophora sordida (P. Karst.) Burt