Search on : Taxa descriptions

 


   
Literature:
 
Page number:48 
Remarks (internal):This species is characterized by the vinaceous to avellaneous color of the dried basidiomes, the lack of clamp connections, the long cylindrical gloeocystidia, and the ornamented spores. The projecting gloeocystidia in the margin area could be mistaken for cystidia. The basidiospores are scattered through the thickness of the basidiome, indicating the development of a thickening hymenium. The gloeoplerous contents of the gloeocystidia were dark yellow brown in sulphuric benzaldehyde, not the typical gray or gray black of a positive reaction. There are two other species of Gloeocystidiellum described as having an orange color when fresh, G. luteocystidiatum (Talbot) Boidin and G. flammeum Boidin. Both are from Africa and known only from the type collections. Gloeocystidiellum luteocystidiatum has clamp connections and smooth spores. Although G. flammeum has ornamented spores and lacks clamp connections, it has much larger and wider gloeocystidia than G. salmoneum.
The spores of G. salmoneum are larger and broader than those of G. porosum and smaller than those of Conferticium ravum. Gloeocystidiellum fimbriatum is more yellow and has a softer texture.
 
Description type:Non-original description 
Description:Gloeocystidiellum salmoneum (Burt) Liberta. Fig. 11 Nova Hedwigia 18: 226, 1969.
? Corticium salmoneum Burt, Ann. Missouri Bot. Gard. 13: 255, 1926.
Type specimen examined Granada: Grand Etang: Chilly Brook, xi.1912, R. Thaxter, s.n., comm. W.G. Farlow 16 (holotype FH: Burt Herb. sheet 557, isotypes FH, TRTC).
Basidiomes effuse, extent uncertain, the piece at TRTC is 1 x 1 cm, 250-800 µm thick, ceraceous, hymenial surface "orange-salmon" when fresh (fide Burt), pale yellow, dark cream, "Vinaceous-Buff", "Avellaneous", to "Tilleul-Buff' (7.5YR7/4) when thy, smooth, cracked sparingly or not at all; margin abrupt, indistinct, whitish tan or concolorous, less than 0.5 mm wide.
Hyphal system monomitic. Subiculum a scant layer of horizontally arranged hyphae next to substrate which is overlain by a layer of vertically oriented, compact, indistinct hyphae, which compose most of the thickness of the basidiome. Hyphae 1.5-3.0 µm diam, lacking clamp connections, the walls thin, nonamyloid, acyanophilous. Hyphidia common, filiform, simple, 2.0-2.4 µm diam. Gloeocystidia 40-150 x 8-11 µm, numerous, those originating in the subiculum tubular and some as long as the basidiome is thick, those arising in the hymenium fusoid to obclavate, thin-walled, the contents pale yellow to yellow in KOH, granular, sulfo-negative or partially empty with adventitious septa, then the apical portion with yellow granular contents. Basidia 29.0-34.0 x 4.0-5.6 µm, slenderly clavate to clavate, with four sterigmata, each up to 2.5 µm long. Basidiospores (4.4-) 4.8-6.0 (-6.8) x 3.2-4.4 µm (n = 50), broadly ellipsoid to subglobose, the wall thin, verrucose, some appearing smooth, amyloid, with a small, rounded, distinct apiculus.
Ecology and distribution Known only from Florida, Granada, and Puerto Rico on bark, the adjacent wood firm, associated with a white rot of angiosperms.
 
Taxon name: