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 | ||
| Xanthoparmelia brunnthaleri (J.Steiner & Zahlbr.) Hale | ||
| Phytologia 28: 486 (1974); Parmelia brunnthaleri J.Steiner & Zahlbr., Bot. Jahrb. Syst. 60: 505 (1926). T: Matjesfontein [Matjiesfontein], Cape Province, South Africa, 10 Nov. 1909, J.Brunnthaler; holo: W. | ||
| Thallus foliose to subcrustose, very tightly adnate, to 3–4 cm wide. Lobes imbricate or not, flat, sublinear-elongate to subirregular, irregularly branched, 0.8–1.5 mm wide. Upper surface yellow-green, darkening and becoming dark greyish green, dull or shiny towards margins, emaculate, becoming rugulose, lacking soredia and isidia; older lobes extensively fractured and areolae commonly formed; areolae c. 1 mm wide; lobes commonly black-margined particularly towards apices. Medulla white. Lower surface pale tan to light brown, often somewhat darker to smoke-grey near lobe apices; rhizines moderately dense to dense, simple, brown. Apothecia subpedicellate, 1–2 mm wide; disc concave, dark brown to black-brown; thalline exciple smooth, thick, entire. Ascospores 8.5–10.5 × 5–6 µm. Pycnidia common. Conidia bifusiform, 6–7 × 0.5 µm. CHEMISTRY: cortex K-, UV-; medulla K-, C-, KC-, P-; containing usnic acid, scabrosin 4-acetate 4'-hexanoate, scabrosin 4,4'-diacetate and unidentified scabrosin derivative Rfc 12. | ||
| Very rare, in arid central Australia (W.A. and N.T.); more common in South Africa. Grows on rock. | ||
| Elix (1994z) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
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