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 | ||
| Letrouitia vulpina (Tuck.) Hafellner & Bellem. | ||
Nova Hedwigia 35: 281 (1982) Lecidea vulpina Tuck., in W.Nylander, Ann. Sci. Nat., Bot.,sér. 4, 19: 354 (1863). T: Cuba, C.Wright, Lich. Cub. 233; lecto: FH n.v., fide J.Hafellner, Nova Hedwigia 35: 714 (1983); isolecto: G, GZU, L, MICH, PC, UPS, US n.v., M. |
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| Thallus greenish to yellow-brown or pale orange, ±smooth to cracked; soredia and isidia absent. Apothecia common and scattered, rounded to somewhat distorted, sessile, constricted at the base, 0.5–1.5 mm wide; disc red-orange to orange or rusty brown, ±plane, smooth; margin raised above the disc, yellow-orange to reddish orange, rather thin and inflexed, often somewhat paler than the disc, K+ purple; proper exciple consisting of hyaline radiating agglutinated hyphae; outer layer encrusted with orange anthraquinone crystals, colourless within. Epihymenium encrusted with red-brown anthraquinone crystals, K+ purple. Hymenium not inspersed, colourless, 80–110 μm thick; hypothecium colourless to yellow or pale brown. Asci usually 2-spored, rarely 3-spored, 60–75 × 15–25 μm. Ascospores broadly ellipsoidal, densely muriform, 24–40 × 15–20 μm. Conidia not seen. CHEMISTRY: Thallus and apothecia K+ purple; thallus containing dioxodidymic acid and 8-chlorodioxodidymic acid (major), dioxocondidymic acid and 8-chlorodioxocondidymic acid (major), letrouitic acid (major), oxodidymic acid and 8-chlorooxodidymic acid (major); apothecia containing additional fragilin (minor) and parietin (minor). |
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| Known from the N.T. and north-eastern Qld; grows on the bark of various trees in rainforest and coastal forest. Also in Asia, Africa, North, Central and South America, Papua New Guinea, Vanuatu, New Caledonia and Tonga. | ||
| Elix (2009k) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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