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Fomitopsis cuneata (Lloyd) G. Cunn. 1948

Scientific name record
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G. Cunn.
Lloyd
(Lloyd) G. Cunn.
1948
4
ICN
NZ holotype
species
Fomitopsis cuneata

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Fomitopsis cuneata (Lloyd) G. Cunn. 1948

Dysoxylum spectabile (Forst.f.) Hook.f.
Auckland. Little Barrier Island, Nov. 1947, Joan Dingley.
Nothofagus menziesii (Hook.f.) Oerst.
Wellington. Day’s Bay, Aug. 1946, G.B.Rawlings.
Southland. Near Otautau, Nov. 1948, G.B.Rawlings; Woodlaw State Forest, Jan. 1947, G.B.Rawlings.
Weinmannia racemosa L.f.
Southland. Woodlaw, Nov. 1946, G.B.Rawlings.
Unknown Hosts
Auckland. Waipoua Kauri Forest, 1940, G.B.Rawlings.
Wellington. Mt. Kapakapanui, Tararua Ranges, Nov. 1946, A.P.Druce.

Hymenophore perennial, dimidiate, sometimes imbricate, firm and woody. Pileus effused-reflexed, applanate or ungulate, sometimes resupinate, 7-17 cm. x 2-5 cm. x 3-5 cm.; surface concentrically sulcate and ridged, fluted, nodose, bay brown, becoming umber, cuticle to 0.5 mm. thick, dark brown, shining, of compacted mainly woven hyphae cemented together; margin acute, entire, undulate, lighter in colour; hymenial surface at first ochraceous, drying bay brown, concave, sterile margin 2-3 mm. wide, finely tomentose, dissepiments not toothed. Context 2-5 mm. thick, pallid ochre or isabelline, of woven hyphae; skeletal hyphae to 4 μ thick, lumen 1 μ or almost obliterated, unbranched, aseptate, staining deeply; generative hyphee 2-3 μ thick, delicate walled, branched, septate, hyaline, not staining. Pores round, obscurely stratose, 2-4 mm. deep in each layer, pallid ochre in section, 100-200 μ diameter, or 5-6 per mm.; dissepiments 50-150 μ, most 50-75 μ, apices velutinate, enlarged, partly blocking pores. Basidial type clavate, basidia clavate, to 16 x 8 μ, soon collapsing. Spores elliptical, 6-8 x 4-5 μ, smooth, hyaline.
Australia; Tasmania; New Zealand.
Growing solitary, sometimes imbricate, upon bark or decorticated wood of dead standing trunks, associated with a white rot.

Resembling F. marginata in many micro-features the species differs in the smaller pores, differently shaped spores, thinner skeletal hyphae and different shape and surface of the pileus. Plants sometimes exude large drops from the surface of the hymenium. Sometimes these persist for so long that pore tissue grows between them, consequently when drops have disappeared the hymenium exhibits a pitted appearance.

In a former paper (1927, p. 210) I listed F. cuneata as a synonym of F. hemitephra, since Lloyd’s scanty description—based on New Zealand specimens at Kew collected from Nothofagus solandri by W.Colenso—suggested that it belonged to this species. His description of the spores was obviously based on those of some contaminating mould. Lloyd’s photograph of a Tasmanian specimen (1924, p. 1329), shows it to be valid and the same as the collections listed above. His Polyporus suaderis appears to be based on the same plant.

From F. hemitephra it may be separated by the different shape and surface of the pileus, larger spores, and absence of an orange zone beneath the cuticle.

Ruahine Ranges, New Zealand.

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Fomitopsis cuneata (Lloyd) G. Cunn. 1948
Fomitopsis cuneata (Lloyd) G. Cunn. (1948)
Fomitopsis cuneata (Lloyd) G. Cunn. 1948
Fomitopsis cuneata (Lloyd) G. Cunn. (1948)

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1cb1b2d8-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
8 February 1995
15 December 2003
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