Podoscypha nitidula (Berk.) Pat. 1903
Details
Podoscypha nitidula (Berk.) Pat. in Duss, Énum. Champ. Guadeloupe 21 (1903)
Podoscypha nitidula (Berk.) Pat. 1903
Biostatus
Nomenclature
(Berk.) Pat.
Berk.
Pat.
1903
21
ICN
species
Podoscypha nitidula
Classification
Descriptions
UNKNOWN HOSTS. Fiji. Suva. Samoa, Apia.
Hymenophore pileate, annual, coriaceous, usually solitary, sometimes one or two fusing at margins but distinct below. Pilei centrally stipitate, infundibuliform, sometimes campanulate, 5-45 mm tall, 15-30 mm wide; pileus surface glabrous or with a few hairs towards the base, chestnut to umber, usually with alternating light and dark brown colour bands, concentrically arranged, frequently radiately zoned or grooved and occasionally radially striate; hymenial surface decurrent, concolorous with the surface, reflecting surface zones, with or without a delicate, bloom, even or longitudinally fissured when dry; margin lighter in colour, bay or tan, thinning out, erect or revolute, entire or crenate. Stems cylindrical or tapering, arising from broad mycelial discs, to 15 x 2 mm, dark brown or black, naked or delicately velutinate. Context wood colour, 200-450 µm thick, increasing in thickness from apex to base, a dense layer of radiately arranged parallel hyphae bordered by a narrow cortex usually, coloured brown and composed of parallel cemented hyphae; abhymenial hairs wanting; skeletal hyphae 4-5 µm diameter, lumena capillary; generative hyphae 2.5-3 µm diameter, walls 0.2 µm thick, with clamp connections. Gloeocystidia arising in the upper part of the context and subhymenium, flexuous-cylindrical or more often ventricose with inflated bases, penetrating the hymenium to its surface, 40-65 x 6-10 µm, sometimes inserted at an angle. Hymenial layer to 70 µm deep, a dense palisade of basidia, paraphyses, and gloeocystidia. Basidia subclavate, 16-20 x 4-4.5 µm, bearing 2-4 spores; sterigmata erect, slender, to 3 µm long. Paraphyses subclavate, 12-15 x 3.5-4 µm. Spores broadly elliptical, 3-3.5 x 2-2.5 µm, walls smooth, hyaline, 0.1 µm thick.
DISTRIBUTION: South America, West Indies, Fiji, Cook Islands.
HABITAT: Solitary or gregarious upon bark of dead fallen branches.
Fructifications are usually solitary and infundibuliform or campanulate, pileus surfaces are glabrous, concentrically zoned with bands of light and dark brown, and hymenial surfaces are even. The narrow, tinted cortex is without abhymenial hairs. Stems are velutinate and attached to the substratum by broad mycelial discs. Gloeocystidia are ventricose-flexuous and conspicuous. Spores are the smallest of those seen in stipitate species, and readily overlooked unless sections are examined with an oil immersion objective.
TYPE LOCALITY: Surinam, South America.
Taxonomic concepts
Podoscypha nitidula (Berk.) Pat. 1903
Podoscypha nitidula (Berk.) Pat. (1903)
Global name resources
Collections
Metadata
1cb19c47-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
20 July 1998
25 October 2000