Xerocomus rufostipitatus McNabb 1968
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Xerocomus rufostipitatus McNabb, New Zealand J. Bot. 6 150 (1968)
Xerocomus rufostipitatus McNabb 1968
Biostatus
Nomenclature
McNabb
McNabb
1968
150
ICN
Xerocomus rufostipitatus McNabb 1968
NZ holotype
species
Xerocomus rufostipitatus
Classification
Associations
Descriptions
Xerocomus rufostipitatus McNabb 1968
COLLECTION EXAMINED: Under N. fusca. Nelson, Maruia, 23 Mar 1966, J. A. McRobb, (HOLOTYPE, PDD 25254).
PILEUS: plano-convex, 2.5 cm diam., dry, velutinate, cocoa brown to chocolate brown; cuticle a trichodermium, composed of erect, branched, septate hyphae 4.5-7 µm. diam., terminal cells typically with acuminate to mucronate apices and brownish contents; margin entire. HYMENOPHORE: tubes to 6 mm long, deeply excavated around apex of stipe, greenish yellow; pores dark red, small, angular, 0.25-0.5 mm diam. STIPE: 3 cm long, more or less equal, 8 mm diam., solid, fibrous, dry, finely granular to furfuraceous by aggregation of caulocystidia, red to dark red; annulus absent. SPORES: spore print not obtained; spores pallid melleous, elliptic-subfusiform, 9.8-12.6-(13.6) X 3.5-4.9 µm, smooth. HYMENIUM: basidia hyaline, clavate, 28-39 x 7.5-11.5 µm, 4-spored; cystidia scattered, hyaline thin-walled, subcylindrical to narrowly ventricose-rostrate, occasionally 1-septate, 38-58 X 7-9 µm. HYMENOPHORAL TRAMA: bilateral, of the Phylloporus subtype; clamp connections absent. CONTEXT OF PILEUS: cream, unchanging on exposure to air. SMELL: not distinctive.
HABITAT: Solitary under Nothofagus.
Pileus plano-convexus, 2.5 cm diam., siccus, velutinus, fuscus. Tubi alte excavati, galbani; pori rubidi, parvi, 0.25-0.5 mm diam. Stipes 3 cm longus, plus minusve aequalis, 8 mm diam., subtiliter granulatus ad furfuraceum, rufus ad rubidum. Sporae elliptico-subfusiformes, 9.8-12.6-(13.6) X 3.5-4.9 µm, leves. Typus Nelson Province, Maruia, 23 Mar 1966, J. A. McRobb, PDD-25254.
Xerocomus rufostipitatus cannot be placed in one of the sections recognised by Singer (1962) as the ammonia reaction of fresh pilei is not known.
The species may be recognised by the velutinate, cocoa brown to chocolate brown pileus, dark red pores and stipe, and small fruitbodies. X. mcrobbii also possesses dark red pores and a reddish stipe, but differs in the coarsely fibrillose-scaly pileus, yellow base to the stipe, and broader spores.
Taxonomic concepts
Xerocomus rufostipitatus McNabb 1968
Xerocomus rufostipitatus McNabb (1968)
Xerocomus rufostipitatus McNabb 1968
Xerocomus rufostipitatus McNabb (1968)
Xerocomus rufostipitatus McNabb 1968
Xerocomus rufostipitatus McNabb (1968)
Xerocomus rufostipitatus McNabb 1968
Xerocomus rufostipitatus McNabb (1968)
Xerocomus rufostipitatus McNabb 1968
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1cb1abd0-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2000
15 December 2003