Parmelinopsis spathulata
≡Parmelia spathulata Kurok. in M.E. Hale & S. Kurokawa, Contr. U. S. Natl Herb. 36: 133 (1964).
≡Hypotrachyna spathulata (Kurok.) Krog & Swinscow, Lichenologist 19 (4): 420 (1987).
Description : Thallus loosely attached, pale greenish grey, 2–5 cm wide. Lobes irregularly branched, sublinear, 3–6 mm wide, ±ascending and revolute, margins sparsely ciliate, dissected. Upper surface glossy, emaculate, covered with numerous small isidia. Isidia submarginal and laminal, in groups, cylindrical or claviform, simple or sparingly branched becoming phyllidiate. Phyllidia subascending, often branched and expanded at apices, sometimes short-ciliate. Medulla white. Lower surface black, rhizinate. Rhizines mainly simple, some projecting ±horizontally at margins. Apothecia not seen.
Chemistry : Cortex K+ yellow, UV−; medulla K−, C+ pink, KC+ pink, Pd− UV−; containing atranorin, chloroatranorin, gyrophoric acid (major), 2,4,5-tri- O -methylhiascic acid (tr.), 5- O -methylhiascic acid (minor), umbilicaric acid (tr.), hiascic acid (tr.) and 4,5-di- O -methylhiascic acid (tr.).
N: Northland (Bay of Islands near Russell). S: Nelson (Collins Valley). On podocarps in lowland coastal forest (Elix & Johnston 1991: 9). Known also from South and East Africa (Hale & Kurokawa 1964; Swinscow & Krog 1988).
Palaeotropical
Parmelinopsis spathulata is characterised by: the corticolous habit; the presence of simple cilia and laminal isidia (the isidia are initially cylindrical but soon become flattened-procumbent and phyllidiate); cortical atranorin and chloroatranorin and medullary hiascic acid complex (Elix & Johnston 1991).
