Details about map content are available here Click on the map dots to view record details.
Species Information
Summary: Also listed in Crusts category. Features include 1) small, pustular, waxy gelatinous, colorless to pale amber fruitbodies with a finely granulose surface, in older specimens becoming confluent to form a continuous layer, 2) growth on decaying wood with bark in place or on leaves, and 3) microscopic characters including cylindric-curved spores and absent clamp connections. The description is from Wells(6) except where noted.
Efibulobasidium rolleyi is found in IA and Tahiti, (Wells). There are collections from BC and CA by Robert Bandoni at the University of British Columbia.
Fruiting body: arising as small pustules 0.01-0.3cm in diameter, becoming confluent when older to form continuous layer with abrupt margins, fruitbodies 0.008cm to 0.2cm thick, waxy-gelatinous in consistency, loosely attached; colorless to pale amber; surface undulate, finely granulose; evanescent [disappearing] on drying or forming a light to dark amber, vernicose [varnish-like] layer
Microscopic: spores (8)9-14 x (3.5)4.5-6(7) microns, cylindric-curved and flattened adaxially, "capable of germinating by repetition"; hypobasidia (7.5)8-13(14) x (7.5)8-12 microns, epibasidia up to 100(255) microns long, "tubular, usually enlarging towards apices", probasidia at first cylindric, then clavate, broadly fusiform or ampulliform, finally subspherical, ovoid, obovate, or clavate, "forming 2 or 4 hypobasidial segments, adjoining wall of hypobasidial segments longitudinally to obliquely oriented"; hymenium distinct, with developing basidia in a zone 20-55 microns in section, covered by a layer of dikaryophyses 20-65 microns in depth, dikaryophyses "usually abundant and distinct, branching, somewhat nodulose near apices, some segments curved", 1-1.5-3 microns thick, "fertile hyphae proliferating laterally from the apical region of subbasidial segment", 1.5-2-3 microns in diameter, without clamp connections; subhymenial hyphae "without clamp connections, usually distinct, thin-walled", 1.5-3 microns wide; "in pustules hyphae arising from a restricted region of the substrate, then expanding and forming a loosely interwoven and ascending layer of hyphae" terminating in hymenium, "in continuous specimens ascending, interwoven layer continuous with a poorly defined basal layer that is very loosely attached to substrate, collapsed basidia scattered throughout ascending, interwoven layer"
Habitat / Range
on decaying, corticate wood [wood with bark] or leaves, (Wells), on dead Salix (willow), one collection on Alnus rubra (Red Alder), (Bandoni''s notes with collections at University of British Columbia)
Similar Species
Efibulobasidium albescens has larger fusiform-curved to cylindric-curved spores 15-21 x 5.5-7.5 microns, and larger hypobasidia 15.5-22 x 12-16 microns, (Wells).
