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 Add this item to the list  803912 Original description
   
Description type:Original description 
Description:Basidiomata small. Pileus 4.511 mm diam., 25 mm high, convex with a very slight central depression when young, becoming broadly convex or nearly applanate still with the central depression; surface dark brown (8F8) at the centre and on the striations and greyish orange (5B3) towards margin when young, becoming dark brown (7F8) at the centre and on the striations and light brown (6D4) or brownish orange (6C4) towards margin and brown (7E6) on margin with age, translucent- to sulcate-striate towards margin, glabrous; margin straight and entire when young, becoming upturned and undulating with age. Lamellae 1115 reaching the stipe, decurrent to deeply decurrent, pinkish white (7A2) or reddish grey (7B2), thin, 11.5 mm wide, subdistant, with lamellulae of 13 lengths; edge finely pruinose under a lens, initially brown (7E6) or dark brown (7F8) or reddish brown (8F8) where the lamella meets the stipe and the pileus margin, gradually entire edge becoming coloured. Stipe 1558 × 0.51 mm, central, terete, almost equal, hollow; surface translucent, brown (7E6) at the apex and on the base, yellowish brown (5D4) at the middle when young, becoming light brown (6D5 or 6D4) at base, reddish blonde (5C4) or greyish orange (5B3) elsewhere with age, glabrous; base slightly broad, with white, hispid basal mycelium. Context not conspicuous. Odour slightly alkaline. Taste bitter. Exudation dark brown (7F8, 8F8) when the stipe is cut. Basidiomata turns blackish when dry. Basidiospores 68.5 (9.5) × 34 (7.5 ± 0.646 × 3.769 ± 0.307) μm, Q = 1.63–2.83, Qm = 2, ellipsoid, thin¬-walled, hyaline, smooth, amyloid, with refractive guttules. Basidia 1724 × 67.5 μm, clavate, bearing 4 sterigmata up to 7 μm long. Cheilocystidia 1228 (44) × 516 μm, clavate or broadly clavate or irregularly-shaped, thin-walled, with dark brownish-red to blackish contents, with simple or branched coarse excrescences (16 (13.5) × 13 μm) at the top. Pleurocystidia none. Lamellar trama subregular; hyphae 219 μm wide, thin-walled, hyaline, vinoid in Melzer’s reagent. Subhymenium ramose. Pileus trama subregular; hyphae 634 μm wide, thin-walled, hyaline, vinoid in Melzer’s reagent. Pileipellis a cutis; hyphae 14 μm, slightly gelatinized, thin-walled, with reddish or reddish-brown contents, with simple or branched digitate excrescences (17 (12) × 12.5 μm). Stipitipellis a cutis; hyphae1.57 μm wide, thin-walled, hyaline to pale brownish, with simple excrescences (28 × 23 μm) more towards the stipe apex. Stipe trama dark brown in water, vinoid in Melzer’s reagent. Clamp connections seen on all hyphae. On decaying leaves and twigs, scattered, June. Distribution – known only from two localities in Kerala State, India. Material examined – INDIA, Kerala State, Malappuram District, Calicut University Campus: 22.VI.2009, DM Aravindakshan DM253 (K(M)178338, holotype); Kannur District, Neeliyarkotta: 17.VI.2009, DM Aravindakshan DM260 (K(M)178339). 
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