Details about map content are available here Click on the map dots to view record details.
Species Information
Summary: Features include 1) resupinate growth on wood, 2) a waxy-gelatinous fruitbody that is grayish blue, grayish white, or even pale ochraceous, the surface smooth to uneven, the margin distinct to diffuse, 3) spores that are nearly round to elliptic, with a pronounced suprahilar depression, warted, inamyloid, and colorless, 4) basidia that are short-cylindric and pleural, 5) a monomitic hyphal system, the hyphae with clamp connections.
Xenasma tulasnelloideum has been found in BC, OR, NS, ON, FL, GA, IA, IL, IN, MA, MO, NC, NH, NJ, NY, OH, RI, and VT, (Ginns). Distribution includes Denmark, Finland, Norway, and Sweden, (Hjortstam), and Switzerland and Asia (Breitenbach).
Fruiting body: resupinate, tightly attached, "forming thin, membranous-gelatinous patches" several centimeters to decimeters across, consistency "waxlike and gelatinous when fresh, crustose and hard when dry"; gray-white, bluish gray; somewhat uneven, generally weakly veined to reticulate but also +/- tuberculate; margin distinctly bounded to diffuse, (Breitenbach), thin to moderately thick, about 0.004-0.005cm thick, resupinate, effused [spread out], closely adnate [firmly attached]; usually grayish blue, but also grayish white or even pale ochraceous; "smooth or under a strong lens porulose, thicker specimens often cracking"; margin abrupt, indeterminable [not clearly demarcated], (Hjortstam), "under a lens appearing waxy-pruinose or minutely porous-reticulate to occasionally raduloid", (Liberta), spore deposit white (Buczacki)
Microscopic: SPORES 4-6 x 3.5-5 microns excluding warts, broadly elliptic-dacryoid [elliptic - tear-shaped], verrucose (ornamentation not soluble in KOH), inamyloid, colorless; BASIDIA 4-spored, 10-18 x 6.5-8 microns, cylindric, pleural, without basal clamp connection; HYPHAE monomitic, 1-3.5 microns wide, gelatinized, septa not observed (but according to the literature, septa are present), (Breitenbach), SPORES nearly round to elliptic, "adaxial side concave with a distinct suprahilar depression", warted, when fully developed usually 6-6.5(7) x 4.5(5) microns, inamyloid; BASIDIA short-cylindric, pleural, generally 10-18 x 6-8 microns, with 4 sterigmata and a basal clamp connection; HYPHAE monomitic, some hyphae parallel to substrate, 2-2.5 microns, thin-walled, and rather straight, other hyphae intermingled, conglutinate and strongly gelatinized, often irregularly inflated, all hyphae with clamp connections, (Hjortstam), SPORES 3.5-6 x 3-6 microns; HYPHAE mostly parallel to the substrate, nodose-septate, (1)1.5-2.5 microns wide, "conglutinate or the walls becoming gelatinized", (Liberta)
Habitat / Range
on dead hardwood, "on the underside of trunks and branches still with bark and lying on the ground"; fall, (Breitenbach), mostly on barkless hardwood, more rarely on coniferous wood such as Abies (fir) and Picea (spruce), (Hjortstam), Acer (maple), Betula (birch), Liquidambar, Pinus (pine), Pseudotsuga (Douglas-fir), Quercus (oak); bark and wood of dead limbs; barkless wood, decayed wood and bark; vegetable debris, (Ginns), probably all year (Buczacki)
