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 | ||
| Peltigera dolichorhiza (Nyl.) Nyl. | ||
Lich. Nov. Zel. 43 (1888) Peltigera polydactylon var. dolichorhiza Nyl., Syn. Meth. Lich. 1(2): 327 (1860). T: Nova Granata [Colombia], coll. unknown; holo: H-NYL 33203 n.v. Peltigera polydactylon var. conjungens Müll.Arg., Flora 66: 22 (1883). T: Toowoomba, Qld, C.H.Hartmann s.n.; lecto: G, fide S.Louwhoff, Australas. Lichenol. 63: 42 (2008). Peltigera dolichorhiza f. pseudocrispoides Gyeln., Acta Fauna Fl. Univ. Bucuresti, ser. 2, Bot., 1(5–6): 5 (1933). T: Richmond River District, [N.S.W./Qld], C.Moore s.n.; holo: W. |
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| Thallus orbicular to loosely and irregularly spreading, 2–10 (–20) cm wide. Lobes 3–8 cm long, 5–15 mm wide, ±discrete at apices, ±thin and brittle; margins undulate and often ascending, sometimes ±inrolled, slightly thickened below, entire to irregularly notched or torn, with or without small tomentose brownish apothecial initials or small regenerating lobules. Upper surface dark lead-grey to blue-black when wet, pale blue-grey to somewhat red-brownish or olive-brown when dry, glabrous, dull to glossy, smooth to undulate, or dimpled to ±bullate in parts. Lower surface pale or whitish at margins, whitish to buff or dark brown centrally. Veins slightly raised, smooth, 0.2–1.0 (–1.5) mm wide, pale buff to brown at margins, brown-black to black centrally, confluent to ±continuous at the margins, soon anastomosing; interstices oval to rounded or somewhat irregularly elongate, occasionally ±fibrous, pale or whitish. Rhizines simple to fasciculate, 5–10 (–15) mm long, slender and tapering towards the margins, often becoming thick, twisted and rope-like centrally, pale buff at the margins, soon becoming dark brown or blackened, scattered to crowded and eventually somewhat tangled. Apothecia erect, rounded to saddle-shaped, 2–5 mm diam., on ±involute marginal stalks; disc pale to dark red-brown, matt; margin thin, corrugate-scabrid, pale pinkish buff. Ascospores acicular, (3–) 5–7-septate, 50–80 × 3–4 µm, pale brown. Pycnidia not seen. CHEMISTRY: Tenuiorin, methyl gyrophorate, dolichorrhizin (major or minor), zeorin (major or minor), ±peltidactylin (major or minor), ±traces of hopane-6α,7β,22–triol, hopane-7β,22–diol, hopane-15α,22–diol. |
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| Widespread and common in southern W.A., Qld, N.S.W., A.C.T., Vic. and Tas.; grows in wet forest or pine plantations, in natural, disturbed or regrowth vegetation, on debris, dead or rotting wood, peaty soil on the forest floor, soil banks and roadside cuttings, and on or among mosses on tree buttresses; found at elevations up to 1200 m. This species has a pantropical to oceanic distribution; it has been reported from Central and South America, Africa, Java, New Zealand and the Hawaiian Islands. | ||
| Louwhoff (2009b) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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