Hymenogaster Vittad. 1831

Caption:

Details

Name scientific

Hymenogaster Vittad., Monogr. Tuberac. 20 (1831)

Preferred name

Hymenogaster Vittad. 1831

Taxonomy reference

Bougher, N.L.; Castellano, M.A. 1993: Delimitation of Hymenogaster sensu stricto and four new segregate genera. Mycologia 85(2): 273-293.

Biostatus

Origin

Occurrence

Georegion

Schema

Biostatus source

Comment

Present

New Zealand

Political Region

Nomenclature

Authors

Vittad.

Original authors

Vittad.

Publication place

Vittadini, C. 1831: Monographia Tuberacearum.

Year published

1831

Publication page

Nomenclatural code

ICN

Basionym

Hymenogaster Vittad. 1831

Taxonomic rank

genus

Canonical form

Hymenogaster

Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Agaricales

Family

Hymenogasteraceae

Genus

Hymenogaster

Subordinates

Associations

View full associations record

Association type

Associated organism

Association source

has mycorrhizal host

Eucalyptus

Chu-Chou, M.; Grace, L.J. (1983)

has host

Nothofagus solandri var. cliffortioides (Hook.f.) Poole

McKenzie, E.H.C.; Buchanan, P.K.; Johnston, P.R. (2000)

has host

Cedrus deodara (Roxb.) G.Don 1830

PDD (1 records from [Not available].)

has host

Cinnamomum camphora

PDD (1 records from [Not available].)

has host

Eucalyptus

PDD (1 records from [Not available].)

has host

Kunzea ericoides (A.Rich.) Joy Thomps. 1983

PDD (13 records from [Not available].)

has host

Leptospermum

PDD (2 records from [Not available].)

has host

Leptospermum scoparium J.R.Forst. & G.Forst.

PDD (6 records from [Not available].)

has host

Nothofagus cliffortioides

PDD (1 records from [Not available].)

has host

Nothofagus fusca (Hook.f.) Oerst.

PDD (3 records from [Not available].)

has host

Nothofagus menziesii (Hook.f.) Oerst.

PDD (1 records from [Not available].)

has host

Quercus

PDD (2 records from [Not available].)

Descriptions

Anon.: NZFUNGI (unassigned reference).

Hymenogaster Vittad. 1831

Notes

Truffle-like, ectomycorrhizal fungi. Hymenogaster in its traditional sense is polyphyletic, and characterised by lacking a columella and by having basal rhizomorphs. In its strict sense, Hymenogaster is characterised by its large, thick-walled, broad-ellipsoid to fusiform spores with a large, cupped hilar appendix.

Represented by a single species in New Zealand, reported by Cunningham, but with apparently no specimens in PDD.

Beaton, G.W.; Pegler, D.N.; Young, T.W.K. 1985: Gasteroid Basidiomycota of Victoria State, Australia. 3. Cortinariales. Kew Bulletin 40(1): 167–204.

Hymenogaster Vittad. 1831

Description

Gasterocarp mostly over 1 cm diam., globose, ellipsoid, lobed or irregularly tuberous, frequently depressed at the base, sessile, indehiscent. Peridium thin to very thick, whitish, yellow, brownish, or with purplish to violaceous tints, often mottled, viscid or dry, smooth to finely velutinate, often becoming wrinkled, not separable from gleba. Gleba soft-fleshy to cartilaginous, labyrinthoid, mostly white when young becoming yellowish, lilaceous, violaceous, rusty brown, finally darker, of small chambers, round or elongate, empty or partially filled, more or less radially arranged from a small sterile base. Tramal plates thin. Hyphal system monomitic, with thin-walled, inflated generative hyphae; clamp-connexions more often present, occasionally absent. Columella absent; sterile base usually present but small in young gasterocarps.
Spores statismosporic, orthotropic, 10-20 µm or more long, ovoid-ellipsoid, amygdaliform or fusoid, at times apically mucronate, with a thickened wall, yellow, ochraceous brown or rusty brown, either smooth or bearing a verrucose to ridged ornamentation, and often a gelatinized myxosporium; hilar appendix small with a terminal hilar pore, sometimes retaining a sterigmal appendage. Basidia cylindrico clavate bearing 1-4 well-developed sterigmata, evanescent. Cystidia none. Hymenophoral trama regular, hyaline. Subhymenial layer pseudoparenchymatous. Peridiopellis a repent epicutis. Development angiocarpic. Hypogeal

Distribution

World-wide.

Typification

Lectotype species (Dodge & Zeller, 1934: 629): H. bulliardii Vittad.