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Mycena lividorubra Segedin 1991

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Mycena lividorubra Segedin, New Zealand J. Bot. 29 48 (1991)
Mycena lividorubra Segedin 1991

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Endemic
Present
New Zealand
Political Region

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Segedin
Segedin
1991
48
ICN
Mycena lividorubra Segedin 1991
NZ holotype
species
Mycena lividorubra

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lividorubra

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Mycena lividorubra Segedin 1991

MATERIAL: New Zealand: North I.; N. Auckland: University of Auckland Reserve, Huapai, B. P. Segedin, 16 v 1980, PDD 56704 (holotypus).

Pileus 20-25 mm. diam., convex, rich purplish-red (11E6 K&W) with a fine felt of dark grey-brown fibrils, dry, margin straight, pellucid striate at the edge. Lamellae concolorous with the pileus, slightly arcuate to decurrent, in 3 series, 12-13 reaching the stipe, well spaced, fairly broad, with a very distinct dark brown edge. Stipe 50-60 X 1.5-2 mm., concolorous with the pileus, smooth, shining, hollow, even but expanding slightly at the base which bears a small number of brownish hairs. Flesh reddish-brown. Smell none, taste unknown. Spore print white. Spores 6-9.5 X 3-4.5 (6.25 X 3.8) µm., Q = 1.6, ellipsoid oblong, hyaline, smooth, thin-walled, strongly amyloid, mostly fairly uniform in size with a few larger ones probably reflecting the predominance of 2-spored basidia with only occasional 4-spored ones. Basidia 21 X 4.5-5 µm., predominantly 2-spored, with long (-4 µm.) sterigmata. Cheilocystidia 15-20 X 6-7 µm., forming a fairly broad band, irregularly shaped with several to many simple to diverticulately branched protuberances, mostly at the apex, sometimes 2-celled with protuberances also from the lower cell. They all have brown sap. Pleurocystidia none. Trama of more or less parallel hyphae 5-7 µm. diam., not inflated, with occasional conducting hyphae, strongly vinaceous brown in Melzer's. Pileipellis of repent, un inflated, dark, hyphae 4-5 µm. diam., bearing protuberances ranging from simple ones along the length of the hypha to complex, diverticulately branched outgrowths forming broom-like clumps, with red (yellowish in KOH) sap. Subpellis of globose, colourless cells up to 18 mm diam. Context of hyphae like those of the trama, with some conducting hyphae with swollen ends and oily, yellow contents. Stipe of narrow, smooth parallel hyphae. Caulocystidia few, nodulose, arising from grey-brown hyphae. All tissues show conspicuous clamp connections.
HABITAT: On decaying wood in kauri (Agathis australis Salisb.) forest.
Pileus 20-25 mm diam., convexus, vinosoruber, pruinosus. Lamellae arcuato-decurrenles, 3 series, fuscomarginatae. Stipes 50-60 X 1.5-2 mm, pileo concolor, pilis brunneis ad basin. Sporae 6-9.5 X 3-4.5 µm., ellipsoideae-oblongae, hyalinae, valde amyloideae. Basidia bispora. Cheilocystidia valde diverticulata ad apicem, succo fusco. Pleurocystidia nulla. Trama vinosa in Melzer. Pileipellis ex hyphis repentibus cum multis diverticulis, aliquando in fasciculis, scoparie. Caulocystidia nulla. Fibulae adsunt. In ligno putrido (Agathis?), Novazelandia.

ETYMOLOGY: lividus, livid, from the leaden sheen on the coloured pileus. Caused by the covering of darkish fibrils.

The rich purple-red colour and the very dark brown edge to the somewhat decurrent lamellae are distinctive characters.

HOLOTYPUS: PDD 56704.

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Mycena lividorubra Segedin 1991
Mycena lividorubra Segedin 1991
Mycena lividorubra Segedin 1991
Mycena lividorubra Segedin (1991)
Mycena lividorubra Segedin 1991
Mycena lividorubra Segedin (1991)
Mycena lividorubra Segedin 1991
Mycena lividorubra Segedin (1991)
Mycena lividorubra Segedin 1991
Mycena lividorubra Segedin (1991)
Mycena lividorubra Segedin 1991
Mycena lividorubra Segedin (1991)
Mycena lividorubra Segedin 1991

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Mycena lividorubra Segedin 1991
New Zealand
Auckland
Mycena lividorubra Segedin 1991
New Zealand
Buller
Mycena lividorubra Segedin 1991
New Zealand
Mid Canterbury
Mycena lividorubra Segedin 1991
New Zealand
Nelson
Mycena lividorubra Segedin 1991
New Zealand
Rangitikei

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taxonomic status
A Prunulus? [JAC]

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1cb1944a-36b9-11d5-9548-00d0592d548c
scientific name
Names_Fungi
1 January 2001
27 August 2002
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