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Page number:61 
Remarks (internal):This species is relatively easy to recognize. Its distinctive characters are the thin-walled, sinuous, almost nematode-shaped gloeocystidia, the weakly amyloid, smooth spores, the hyphidia, the fissured hymenial surface of mature specimens, and the color of the hymenial surface, which is usually some shade of brown. When dry, older specimens are usually cracked in a characteristic pattern in which small lenticular fissures occur or the basidiome shrinks to form a labyrinthoid reticulum.
Gloiothele lactescens is very similar to G. tropicalis and G. turpis. The three species have spore sizes that overlap. The spores of G. turpis are slightly shorter than those of the other two species, and the spores of G. tropicalis are about one micron wider than those of the other two species. Gloiothele tropicalis has hyphal strands and a few hyphidia, whereas G. turpis lacks both strands and hyphidia.
Many specimens of G. lactescens are macroscopically similar to G. citrina. Some specimens of G. lactescens had at least some gloeocystidia which lacked refringent contents and were slightly swollen at the base, characters reminiscent of G. citrina.
 
Description type:Non-original description 
Description:Gloiothele lactescens (Berk.) Hjortstam. Fig. 14 Windahlia 17: 58, 1987.
? Thelephora lactescens Berk. in J. E. Smith, The English Flora 5 (2): 169-170, 1836.
? Corticium lactescens (Berk.) Berk., Outlines of British Fungology. London, p. 274, 1860.
? Gloeocystidium lactescens (Berk.) Höhn. & Litsch., Wiesner-Fetschrift 58: 68, 1908.
? Gloeocystidiellum lactescens (Berk.) Boidin, Compt. Rend. Hebd. Séances Acad. Sci. 233: 1668, 1951.
? Megalocystidium lactescens (Berk.) Jülich, Persoonia 10: 140, 1978.
= Corticium epigaeum Ellis & Everh., J. Mycol. 1: 88, 1885.
Type specimen examined Corticium epigaeum, United States: Oregon, vii.1884, W. C. Carpenter, 100 (NY).
Basidiomes effuse, fragmented, the largest piece 6 x 2 cm and 200-500 µm thick: hymenial surface pale yellow with a slight pink tint, "Cream Buff', "Pinkish Buff' sometimes with "Avellaneous" tints, "Cinnamon-Buff', or "Clay Color" when thy, smooth, crustose, younger specimens cracked sparingly, older ones drying with characteristic mouth-like fissures 1-2 mm long or shrinking to form a characteristic reticulate pattern and revealing a white to resinous subiculum; margin often nearly white and fibrillose, sometimes abrupt or pruinose.
Hyphal system monomitic. Subiculum a layer about 50 µm thick next to substrate, with hyphae woven, distinct, parallel. Hyphae 2.0-3.6 (-4.4) µm diam, lacking clamp connections, the walls hyaline, thin, nonamyloid. Subhymenium compact, indistinct, to 300 m thick. Hyphidia numerous, filiform, some weakly branched at the apex, 2-3 µm diam. Gloeocystidia 120-300 x 6-11 m, numerous, sinuous, tubular, typically broader at the base, apex broadly rounded, thin-walled, the contents hyaline to yellowish-green in KOH, usually homgeneous, sulfo­positive. Basidia 40-75 (-100) x 6.0-8.0 µm, clavate, most with four sterigmata, each up to 5.0 µm long, a few with two sterigmata. Basidiospores 6.8-8.4 (-9.4) x 5.0-5.6 (-6.0) µm, subglobose to broadly ellipsoid, the wall smooth, thin, weakly amyloid, mottled on the inner surface in Melzer's, with a rather broad, distinct apiculus which is smoothly molded into the spore wall.
Ecology and distribution Scattered across North America on decorticated, sometimes rotted, wood, associated with a white rot of a variety of angiosperms or rarely conifers.
 
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