Irpex brevis Berk. 1855

Details

Name scientific

Irpex brevis Berk. 1855

Preferred name

Cerrena zonata (Berk.) H.S. Yuan 2013

Nomenclature

Original authors

Berk.

Authors

Berk.

Publication place

Berkeley, M.J. Fungi. In: Hooker, J.D. Flora Novae-Zelandiae. Part II. Flowerless Plants. Lovell Reeve. 172-210, 338.

Year published

1855

Publication page

181

Nomenclatural code

ICN

Basionym

Irpex brevis Berk. 1855

Type locality

NZ holotype

Taxonomic rank

species

Canonical form

Irpex brevis

Typification

New Zealand., Bay of Islands type collections Colenso, b492, b529, b731, b915, b1001, b1021 K(M)

Classification

Kingdom

Fungi

Phylum

Basidiomycota

Class

Agaricomycetes

Order

Polyporales

Family

Irpicaceae

Genus

Irpex

Species

brevis

Descriptions

Cunningham, G.H. 1949: New Zealand Polyporaceae. 11. The genus Irpex. New Zealand Department of Scientific and Industrial Research, Plant Diseases Division, Bulletin. 82.

Irpex brevis Berk. 1855

Collections Examined

Acacia dealbata Link Auckland. Te Hana, 100 feet, April, 1947, J.D.Atkinson; Oratia, Aug. 1948, D.W.McKenzie. Albizzia lophantha Benth. Auckland. Tauranga, April, 1947, H.Mouat. Beilschmiedia tarairi (A.Cunn.) Benth. & Hook.f. Auckland. Awhitu Peninsula, 150 feet, Apr. 1946, G.H.C.; hattcarci, Whangarei, Western Hills, May 1948, J.M.Dingley. Puketi Forest, Bay of Islands,June 1948, J.M.Dingley. Beilschmiedia tawa (A.Cunn.) Hook.f. & Benth. Auckland. Upper Wairoa Valley, Hunua Range, Sept. 1946, J.M.Dingley; Moumoukai Valley, Hunua Range, June 1949, J.M.Dingley; Mt. Te Aroha, 600 feet, Nov. 1946, G.H.C.; Mamaku Forest, May 1947, G.B.Rawlings Betula alba L. Hawke's Bay. Hastings, July 1948, J.D.Atkinson. Crataegus oxyacantha L. Auckland: Purewa Bush, June 1949, D.W.McKenzie. Cupressus macrocarpa Hartn. Auckland. Mt. Alhert. April 1949, D.W.McKenzie. Dacrydium cupressinum Sol. Auckland. Upper Piha, Waitakeres, June 1947, J.M.Dingley; Henderson, 400 feet, April 1948, J.M.Dingley: Swanson, 200 feet, May 1948, J.M.Dingley; Mamaku Forest, 2,000 feet, Nov. 1947, G.H.C.; Omahutu Forest, July 1948, J.M.Dingley. Taranaki: Mt. Egmont, 2,300 feet, Dec. 1947, G.H.C. Wellington: Weraroa, July 1919, G.H.C. (Identified by C.G.Lloyd as Irpex consors); May 1923, J.C.Neill-G.H.C. Dysoxylum spectabile (Forst.f.) Hook.f. Auckland. Little Barrier Island, Nov. 1947, J.M.Dingley; Moumoukai Valley, Hunua Range, July 1946, J.M.Dingley. Nothopanax arboreum(Forst.f.) Seem. Auckland. Mountain Road, Henderson, May 1948, J.M.Dingley. Pinus radiata Don Wellington, Weraroa, June 1919, G.H.C. Pseudopanax crassifolium (Sol.) Koch Auckland. Titirangi, Waitakeres, 1,000 feet, June 1949, J.M.Dingley. Salix fragilis L. Auckland. Whangarei, May 1948, J.M.Dingley; Purewa, Sept. 1948, D.W.McKenzie; Tauranga, July 1948, M.Hodgkins. Suttonia salicina Hook.f. Auckland. Wood's Bay, July 1948, J.M.Dingley. Unknown hosts. Auckland. Near Muriwai Beach, May, 1946, G.H.C.; Whakarewarewa, May 1947, G.B.Rawlings; Swanson, Waitakeres, Aug. 1947, Margaret Ambler; Whitianga-Coromandel Road, 200 feet, Nov. 1947, Mrs. E.E.Chamberlain; Russell, 700 feet, June 1948, J.M.Dingley; Mt. Albert, Nov. 1948, D.W.McKenzie; Lake Waikaremoana, March 1949, Margaret Ambler; Whangarei, May 1949, J.M.Dingley. Wellington. Wadestown, Aug. 1881, T.Kirk (Identified by M.C.Cooke as Irpex brevis); Ohau River, Tararuas, 500 feet, Nov. 1932, E.E.Chamberlain; Tiriteaa, Tararuas, 1,000 feet, Nov. 1932, E.E.Chamberlain; Tokomaru River, Tararuas, 500 feet, Jan. 1933, E.E.Chamberlain.

Description

Hymenophore annual, caespitose, often imbricate, coriaceous. Pileus flabelliform, applanate, effused-reflexed and dimidiate, sometimes spathulate, occasionally urceolate, frequently resupinate, 7-30 mm. x 8-15 mm., x 1-2 mm.; surface wood colour, or ochraceous, with or without concentric zones of darker colour, sometimes sulcate, commonly radiate-striate, glabrouss, often polished, without a cuticle; margin acute, entire or lacerate, plane or inturned; hymenial surface wood colour or pallid ochre, fertile to the edge, concolorous. Context cream to ochre, to 1 mm. thick, compact, of parallel hyphae radiately arranged; skeletal hyphae to 6 µ thick, lumen 1 µ, or almost obliterated, aseptate, unbranched, contents staining; generative hyphae 2.5-3 µ thick, wall 0.5 µ, branched, septate, staining blue, with clamp connections. Hymenium alveolar peripherally, elsewhere with flattened teeth irregular in length and shape, 0.5-2 mm. long, apices bluntly pointed. Basidial type clavate, basidia clavate, 12-16 x 4-6 µ. Cystidia abundant or sparse, but always present, clavate or fusiform, to 40 x 8 µ, naked or crystal encrusted, staining; often encrusted setae are present in the context and occasionally rounded apices of skeletal hyphae project beyond the basidia. Spores elliptical, sometimes slightly allantoid, 4-4.5 x 1.5-2 µ, smooth, hyaline.

Distribution

DISTRIBUTION: Australia; New Zealand.

Habitat

HABITAT: Imbricate, sometimes resupinate, upon bark or decorticated fallen branches or upright stumps.

Notes

Specific characters are the glabrous, often radiate-striate, sometimes zoned, ochraceous small pilei; small teeth with a border of shallow pores, dimitic hyphal system, abundant clamp connections, presence of cystidia, often crystal coated in the hymenium and/or context, and small elliptical spores.

Lloyd (Myc.Notes, No. 45, p. 625, 1917) listed the species as a synonym of I. consors Berk., and gave as additional synonyms I. decurrens Berk. ex Cke. and probably Hydnum meruloides Kalch. One New Zealand collection from Weraroa he named I. consors. It is typically I. brevis, as ascertained by the author from examination of the type of the latter at Kew. I. brevis antedates I. consors by twenty-two years so it is the valid name to employ; though the author is unable at present to state if I. brevis and I. consors are names for the same species.