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Tubaria aureosimilis (E. Horak) E. Horak 2018

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Tubaria aureosimilis (E. Horak) E. Horak 2018
Tubaria aureosimilis (E. Horak) E. Horak 2018

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Endemic
Present
New Zealand
Political Region

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aureosimilis

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New Zealand: South Island: Nelson, Lake Rotoiti, Big Bush. 25.11.1969, leg. Horak (PDD 27155, holotype: ZT 69/113, isotype).
Pileus -25 mm, hemispheric when young, becoming convex to plane with depressed centre, margin incurved also in aged specimens; yellow-brown, velutinous to felly; dry, hygrophanous; margin not striate, with distinct yellow fibrils from the veil (at least in young carpophores). Lamellae (L 12-18,7-) 15), crowded; broadly adnate to emarginate; golden-yellow when young becoming yellow-brown with age, edge albofimbriate. Stipe -25 x -2.5 mm, cylindric, equal, often curved, central; concolorous with pileus, base brown; densely covered with appressed longitudinal fibrils, with distinct but evanescent yellow cortina; dry, hollow, single in groups, with yellow-brown basal tomentum. Context yellow-brown. Odour not distinctive. Taster mild. Chemical reactions on pileus: KOH, NH? - brown; H2S04, HCI - negative. Spores 7-8 x 4-5 µm, phaseoliform, brown, membrane thin-walled, smooth, germ pore absent. Cheilocystidia 30-50 x 15-20 µm, clavate to vesiculose, membrane hyaline to yellow-brown, occasionally encrusted with yellow-brown pigment, clamp connection at basal septum. Pleurocystidia absent. Caulocystidia cylindric, not differentiated. Cuticle a trichoderm of suberect to erect cylindric hyphae, terminal cells cystidioid (conic to fusoid), membranes not gelatinised, encrusted with brown (KOH) pigment. Clamp connections numerous at septa.
on rotten log of Nothofagus solandri (Hook.f.) Oerst. var. cliffortioides (Hook.f.) Poole. New Zealand.
Pileus -25 mm, convexus dein plano-depressus, aureobrunneus, innate tomentosus. Lamellae adnato-emarginatae, aureae dein luteo-brunneae, albofimbriatae. Stipes -25 x 2.5mm, cylindricus, pileo concolor, cortina fibrillosa lutea subpersistenter instructus, fibrillosus. Sporae 7-8 x 4-5 µm, phaseoliformes, brunneae. Cheilocystidia clavato-vesiculosa. Ad lignum putridum Nothofagi. Novazelandia.

In the field this yellow-brown species can be mistaken for a species of Gymnopilus Karsten. This New Zealand fungus is a close relative of the following two European species of Phaeomarasmius, viz, P. muricatus (Fr. ex Fr.) Singer and P. limulatus (Fr. ex Weinm.) Singer. It can be distinguished by the size and shape both of the spores and cheilocystidia and in addition by the rather tomentose structure of the pileocutis.

Typus PDD 27155

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Tubaria aureosimilis (E. Horak) E. Horak 2018
New Zealand
Tubaria aureosimilis (E. Horak) E. Horak 2018
New Zealand
Gisborne
Tubaria aureosimilis (E. Horak) E. Horak 2018
New Zealand
North Canterbury
Tubaria aureosimilis (E. Horak) E. Horak 2018
New Zealand
Taupo

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e8bd6de9-d445-4c3e-9aea-7872ffb981a1
scientific name
Names_Fungi
9 January 2008
25 June 2018
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