| Holotype: Lecanora munzii K. Knudsen & Lendemer |
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Description: Thallus of subcorticate,
verruculose areoles, areoles contiguous or dispersed, irregular in shape, 0.1-0.2 x 0.5-0.3 mm wide, to 0.2 mm
thick. Surface dull brown to dull-brownish green, epruinose, rugulose.
Apothecia numerous, round, sessile, 0.1-0.3 mm in diameter; disc reddish-brown,
epruinose, becoming convex; margin prominent, usually entire, becoming excluded, concolorous with
thallus. Amphithecium without true cortex, laterally to 50 µm, basally 80
µm wide, of irregularly short-celled hyphae, lumina less than 2 µm wide, obscure due to dark
pigmentation; parathecium 10-15 µm wide; hypothecium to 50 µm high, colorless;
subhymenium 20-30 µm high; hymenium 40-60 µm high, colorless, gelatinized;
epihymenium 8-10 µm high, brownish, with a thin gelatinous surface, few granules;
paraphyses simple, 1.0-2.0 µm wide, apices usually with dark pigment caps, up to 4 µm
wide; ascospores colorless, simple (10.1)-11.3-(12.4) x (4.6)-4.9-(5.2) µm.
Pycnidia common, black, immersed to sessile, 10-20 µm wide; conidia
simple, hyaline (5.4)-5.9-(6.5) x (1.6)-1.9-(2.4) µm.
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Chemistry: Gyrophoric acid (thallus). Spot tests, K-, KC+ weak pink
(in squash mount), C + pale pink (in squash mount), P-, UV-.
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Type: USA: California: Los Angeles County: Claremont,
Bernard Biological Field Station, back area called “The Neck”, 34° 06’ 58” N, 117° 42’ 15” W, 418 m,
common on dead wood of Artemisia californica on ground from senescent shrub that had disintegrated,
26.iv. 2009, K. Knudsen 10932 & N. Hamlett = Lich. East. N. Amer. Exs. VIII: 152 (UCR, holotype;
NY, isotype, 20 additional isotypes to be distributed).
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The original paper describing the type appeared in Opuscula Philolichenum 7: 21-28 (2009). |
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ucr.edu
