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 Tremella lutescens
BiostatusPresent in region - Indigenous. Non endemic
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Caption: Tremella lutescens.
Owner: Herb. PDD |
Article: McNabb, R.F.R. (1966). New Zealand Tremellales - II. New Zealand Journal of Botany 4(4): 533-545 (http://www.rsnz.org/publish/abstracts.php).
Description: Fructifications firm-gelatinous, at first
pustulate, becoming complicate, gyrose, cerebriform or bluntly lobate to 8 cm
in longest dimension, to 3.5 cm high, variable in colour, pallid yellow to orange.
Internal hyphae relatively thick-walled, hyaline, clamp connections present.
Hymenium composed of conidiophores or basidia, or both; conidiophores branched,
septate, bearing globose to oval, hyaline conidia, to 4.1 x 2.8 µm, probasidia
broadly elliptical to oval, with basal clamp connections, 15.5-22.5-(26) x 13.5-19.5
µm. becoming longitudinally cruciate-septate; sterigmata cylindrical, 2-3 µm
diam., occasionally expanded apically. Basidiospores subglobose, broadly ovate
or obovate, hyaline, apiculate, 10.5-15.5 x 7.4-9.9 µm. Germination by repetition.
Habitat: Angiosperm bark and wood.
Notes: The taxonomic treatment of Looney (1933,
p. 28) and Olive (1947, p. 95) is adopted and Tremella mesenterica regarded
as a synonym of T. lutescens, Martin (1952, p. 75) restricted the name
T. lutescens to pallid yellow forms lacking conidia and retained T.
mesenterica for those forms producing both conidia and basidia. The microscopical
differences between these two forms observed by Martin were not apparent in
New Zealand material.
T. lutescens was first recorded from New Zealand by Cooke (1879, p. 57). Two collections
at Kew from the localities cited by Cooke ("Maungaroa, N.Z." and "Winton,
N.Z.") both appear to be correctly identified, although the former is sterile.
T. lutescens var. alba Berk. was recorded from New Zealand by
Colenso (1886, p. 306) but the place and date of publication of this variety
cannot be traced. It is possibly a herbarium name. A collection at Kew labelled
"var. alba" (Colenso bl23) is probably T. fuciformis
rather than T. lutescens.
T. mesenterica was recorded from New Zealand by Cooke (1879, p. 57). The collection cited
by Cooke cannot be traced at Kew. T. lutescens may be distinguished by
the large, yellow to orange fructifications and is not uncommon during autumn
and winter.
Article: Cooke, M.C. (1879). New Zealand fungi. Grevillea 8(46): 54-68.
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