Inocybe gemina (E. Horak 1979: 166 ) Garrido (1988: 176)

Horak, Egon, Matheny, P. Brandon, Desjardin, Dennis E. & Soytong, K., 2015, The genus Inocybe (Inocybaceae, Agaricales, Basidiomycota) in Thailand and Malaysia, Phytotaxa 230 (3), pp. 201-238 : 215

9. Inocybe gemina (E. Horak 1979: 166) Garrido (1988: 176) . Pl. 3a

Habitat: On soil in tropical montane rain forest dominated by Castanopsis , Lithocarpus .

Known distribution: Papua New Guinea (type), Malaysia.

Specimens examined: PAPUA NEW GUINEA. Morobe District: Bulolo, Watut, ca. 1100 m elev., on soil in tropical montane rain forest (dominated by Castanopsis-Lithocarpus), 28 Apr. 1972, leg. E. Horak (ZT72-425, holotype!). MALAYSIA. Sabah: Mt Kinabalu, Mesilau River, 1600 m elev., on soil in tropical montane rain forest, 18 Jan 1964, leg. E.J.H. Corner RSNB 5007 (E, ZT78-45).

Notes: The type locality of the conspicuous I. gemina is situated in tropical montane forests dominated by Castanopsis and Lithocarpus in Papua New Guinea. This species is probably widely distributed in southeast Asia, but to date it has not been recorded in Thailand or in peninsular Malaysia. However, various habitats indicate that its occurrence can be expected ( Horak 1980). Recently, this taxon was found in Indonesia (Bali, Lombok: Horak, unpubl.).

The sharply pointed pileus of Inocybe gemina is a reliable macroscopical character, which is reminiscent of small specimens of I. petchii or I. hydrocybiformis . However, these three taxa are readily distinguished by distinctive microscopical features. No sequence data are yet available for I. gemina .

Figures

PLATE 3. a. Inocybe gemina (ZT72-425, holotype). b. Inocybe stellata clade II (ZT10123). c. Inocybe stellata clade I (ZT10097, holotype). d. Inocybe stellata clade II (DED8060). Scale bars = 10 mm. Photos a, b, c, by Egon Horak, d, by Dennis Desjardin.