Australian Biological Resources Study
| Checklist of the Lichens of Australia and its Island Territories | ||
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References | ||
| Collema laeve Hook.f. & Taylor | ||
| London J. Bot. 3: 656 (1844) T: Bay of Islands, North Is., N.Z., J.D.Hooker, 1841; lecto: FH, n.v., fide G.Degelius, Symb. Bot. Upsal. 20(2): 116 (1974). *****Collema leucocarpum var. minus F.Wilson, J. Linn. Soc., Bot. 28: 356 (1891). T: vicinity of Lake Wat Wat, Gippsland, Vic., Dec. 1888, F.R.M.Wilson; lecto: NSW, fide G.Degelius, loc. cit. *****Collema laeve f. fimbriatum F.Wilson, Proc. Roy. Soc. Victoria 5: 152 (1893). T: Warnambool, Vic., coll. unknown; n.v. |
||
| Thallus 3–6 cm wide, sometimes more than 10 cm, foliose, membranous, rounded, lobate, adnate, smooth, rugulose in parts, matt or slightly glossy, without isidia, olive-green, rarely bluish green. Lobes to 3 cm wide, few, rounded, imbricate, sparsely lobulate; lobules rounded; margins entire, sometimes slightly undulate. Apothecia usually dense, to 1 mm wide, often immersed when young, becoming sessile with a constricted base, or widely adnate; disc flat to concave, white-pruinose, sometimes yellow-pruinose, pale dark red; thalline exciple thick or thin, entire, smooth to rugulose, persistent; proper exciple euthyplectenchymatous or euparaplectenchymatous. Asci 65–90 × 15–20 µm. Ascospores 40–65 × 6–8.5 µm, fusiform to broadly acicular, straight, sometimes curved with acute sometimes extended ends, 6–8 or rarely 10-celled, not constricted, or sometimes constricted at middle septum. Pycnidia numerous, to 270 µm wide, laminal; pycnidial gel hyaline, pale yellow or pale brown. Conidia 4–4.5 × 1–1.5 µm, straight, slightly swollen towards ends. Var. laeve: Thallus usually 3–6 cm wide, sometimes larger than 10 cm wide Upper surface rugulose in parts, matt or slightly glossy. Apothecia with a euthyplectenchymatous or partly euparaplectenchymatous build up of small thin-walled cells to 10.5 µm diam., thin, proper exciple (central part to 20 µm thick, marginal part thicker), hyaline. | ||
| Occurs in temperate South America, Australia (N.S.W., A.C.T., Vic. and Tas.) and New Zealand. | ||
| Filson (1992d) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from Australian Biological Resources Study. Requests and inquiries concerning reproduction and rights should be addressed in the first instance to Dr P. McCarthy. These pages may not be displayed on, or downloaded to, any other server without the express permission of ABRS.