Stypella subhyalina (A. Pearson) P. Roberts
no common name
Uncertain

Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.

Introduction to the Macrofungi

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Map

E-Flora BC Static Map

Distribution of Stypella subhyalina
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Species Information

Summary:
Features include 1) a fruitbody forming a thin, firmly attached, waxy-gelatinous blue-gray film with numerous, small, white, calcareous inclusions but drying to an indistinct varnish-like film, 2) elliptic spores, 3) myxarioid basidia consisting of a spherical, cruciately divided head and a long stem-like cell with a basal clamp connection, and 4) projecting lanceolate ''cystidia'' and dikaryophyses.
Microscopic:
SPORES (5.75)6.2-8 x (3.5)3.75-4 microns, elliptic, sometimes laterally depressed, thin-walled, colorless, germinating by repetition; BASIDIA "myxarioid", "consisting of a globular, cruciately divided head, 8-10 x 6.5-8 microns and a stalk-cell up to 16 microns in length with a basal clamp-connexion", epibasidia up to 8 microns long; ''CYSTIDIA'' very numerous, 24-60 x 3.5-5.2 microns, "lanceolate, tapering gradually toward the acute, or rarely obtuse, apex, and projecting for up to 30 microns", thin-walled, colorless; DIKARYOPHYSES 2-2.5 microns wide, thin-walled, colorless, "often tortuous and either unbranched or slightly branched at the apex"; hymenium 8-20 microns thick consists of a single layer of basidia, dikaryophyses, and cystidia; fruit body in section "varies from 11 to 70 microns in thickness and consists of a dense granular basal layer of very indistinct, highly gelatinized narrow hyphae, which lie parallel to the substratum in the basal region but gradually curve upward and give rise to the hymenium", (Reid), SPORES (5)6-8.5(10) x (2.5)3-4 microns from prints, elliptic to cylindric, "some often constricted or weakly depressed", "frequently producing secondary spores, germinating by germ tube"; HYPHIDIA similar to Stypella grilletii; CYSTIDIA sparse (but always present if searched for), up to 60 microns long, "typically projecting from the hymenium for approximately half their length", thin-walled, colorless, acute, swollen towards the base; HYPHAE similar to Stypella grilletii, (Roberts)
Notes:
Stypella subhyalina has been found in OR, AB, ON, PQ, CA, GA, IA, MA, MO, NC, NY, and OH, (Ginns). Collections were examined from IA, Denmark, France, Ireland, Netherlands, Norway, United Kingdom, and the Canary Islands, (Roberts). R. Bandoni collections from WA and BC were deposited at the University of British Columbia (as Sebacina sublilacina).

Habitat and Range

SIMILAR SPECIES
Stypella grilletii, Stypella glaira, and Stypella subgelatinosa lack cystidia, (Roberts). S. grilletii differs chiefly in lacking cystidia (Reid, actually discussing its synonym Sebacina podlachica). Stypella dubia has thick-walled cystidia, (Roberts).
Habitat
on fallen hardwood, occasionally on old polypore fruitbodies, (Roberts), on rotten, barkless wood; on limb; thelephoraceous fungus, Liriodendron tulipifera (Tuliptree), Populus sp., Prunus sp., Quercus sp. (oak), Salix sp. (willow), Tilia sp. (basswood), Ulmus sp. (elm), (Ginns), on Fagus (beech), (Reid), probably all year; on rotting hardwood, rarely on rotting polypore fruitbodies, (Buczacki)

Synonyms

Synonyms and Alternate Names:
Myxarium subhyalinum (A. Pearson) D.A. Reid