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 Mycena lividorubra
BiostatusPresent in region - Indigenous. Endemic
Images (click to enlarge)
Caption: Fig-4 M. lividorubra. 1. basidiomes. 2. basidia. 3.cheilocystidia. 4. basidiospores. 5. pileipellis elements. 6. caulocystidia. | 
Owner: P. Leonard | 
Caption: Dried type specimen
Owner: Herb PDD |
Article: Segedin, B.P. (1991). Studies in the Agaricales of New Zealand: some Mycena species in sections Longisetae, Polyadelpha, Rubromarginatae, Galactopoda, Lactipedes, and Calodontes. New Zealand Journal of Botany 29(1): 43-62 (http://www.rsnz.org/publish/abstracts.php).
Description: 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: HABITAT: On decaying wood in kauri (Agathis australis
Salisb.) forest.
Notes: 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.
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