There is currently no association data for this record. You have been redirected to the main record.
Download Copy a link to this page Cite this record

Xerocomus aurantiacus McNabb 1968

Scientific name record
Names_Fungi record source
Is NZ relevant
This is a synonym
This record has collections
This record has descriptions

Click to collapse Nomenclature Info

McNabb
McNabb
1968
146
ICN
Xerocomus aurantiacus McNabb 1968
NZ holotype
species
Xerocomus aurantiacus
Under N. menziesii, [New Zealand] Otago, Tapanui, Black Gully, 30 Mar 1966, R.F.R. McN., (HOLOTYPE, PDD 25175).

Click to collapse Classification Info

aurantiacus

Click to collapse Descriptions Info

Xerocomus aurantiacus McNabb 1968

COLLECTION EXAMINED: Under N. menziesii, Otago, Tapanui,. Black Gully, 30 Mar 1966, R.F.R. McN., (HOLOTYPE, PDD 25175).
PILEUS: plano-convex to applanate, 3-5.5 cm diam., dry, finely felted, golden yellow, apricot or occasionally reddish orange; cuticle a trichodermium, composed of erect, branched, septate hyphae 7-10 µm diam., with brownish contents, becoming disorganised with age; margin entire. HYMENOPHORE: tubes short, to 3mm long, slightly excavated around apex of stipe, adnate or subdecurrent, dull red; pores concolorous with tubes, irregularly angular, 0.5-1 mm diam., often radially elongated near apex of stipe. STIPE: 2-3.5 cm long, more or less equal, 5-8 mm diam., solid, fibrous, dry, finely granular to furfuraceous by aggregation of caulocystidia, concolorous with pileus or with general reddish colouration, pallid yellow at extreme apex; flesh pallid reddish brown; annulus absent. SPORES: spore print not obtained; spores melleous, short elliptical to ovate-elliptical, 7.2-9x4.2-5.2 µm. smooth. HYMENIUM: basidia hyaline, clavate, 32-45x8-10 µm, 4-spored; cystidia sparse, scattered, hyaline, thin-walled, narrowly ventricose-rostrate, 42-60x5.5-10 µm. HYMENOPHORAL TRAMA: bilateral, of the Phylloporus subtype; clamp connections absent. CONTEXT OF PILEUS: sordid pallid fawn to yellowish fawn, unchanging on exposure to air. TASTE AND SMELL: not distinctive. CHEMICAL REACTIONS: KOH on pileus and context of pileus—no definite reaction; NH4OH on pileus—immediate bright olive green; on context— purplish.
HABITAT: Gregarious or caespitose under Nothofagus.
Pileus plano-convexus ad applanatum, 3-5.5 cm diam., siccus, subtiliter coactus, aureus, armeniacus vel subinde cinnibarinus. Tubi subexcavati, adnati vel subdecurrentes, soirdide rufi; pori concolores, irregulariter angulares, 0.5-1 mm diam. Stipes 2-3.5 cm longus, plus minusve aequalis, 5-8 mm diam., subtiliter granulatus ad furfuraceum, concolor cum pileo vel rubeus. Sporae branchy-ellipticae ad ovato-ellipticas, 7.2-9 X 4.2-5.2µm, leves. Typus Otago Province, Tapanui, Black Gully, 30 Mar 1966, R.F.R. McN., PDD 25175.
The short, broad spores (Q = less than 2) and bright olive green ammonia reaction of fresh pilei indicate that this species belongs in sect. Pseudogyrodontes as defined by Singer (1962). Xerocomus aurantiacus is characterised by the golden yellow, apricot or reddish brown pileus, dull red hymenophore, and short spores.

Click to collapse Taxonomic concepts Info

Xerocomus aurantiacus McNabb 1968
Xerocomus aurantiacus McNabb (1968)
Xerocomus aurantiacus McNabb 1968
Xerocomus aurantiacus McNabb (1968)
Xerocomus aurantiacus McNabb 1968
Xerocomus aurantiacus McNabb (1968)
Xerocomus aurantiacus McNabb 1968
Xerocomus aurantiacus McNabb (1968)

Click to collapse Collections Info

Xerocomus aurantiacus McNabb 1968
[Not available]

Click to collapse Notes Info

typification
Under N. menziesii, [New Zealand] Otago, Tapanui, Black Gully, 30 Mar 1966, R.F.R. McN., (HOLOTYPE, PDD 25175).

Click to collapse Metadata Info

1cb1abc7-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2000
15 December 2003
Click to go back to the top of the page
Top