Flora of New Zealand Series

H. thysanota (Kurok.) Hale, Smithson. Contr. Bot. 25: 68 (1975).

Parmelia thysanota Kurok. in Hale et Kurok., Contr. U.S. natn. Herb. 36: 186 (1964).

Thallus lobate, loosely attached, to 15 cm diam., corticolous. Lobes linear, subdichotomously branched, subdivaricate, 2-5 mm wide. Upper surface plane, shining, pruinose at apices, whitish mineral grey, sorediate. Soralia subterminal often protruding, coalescent. Lower surface black, densely rhizinate. Rhizines black, squarrosely branched, projecting beyond margins. Apothecia not seen. Chemistry: Cortex K+ yellow; medulla K-, C+ red, KC-, Pd+ red. Echinocarpic, gyrophoric, microphyllinic acids and atranorin.

S: Nelson (Black Hill, Lake Rotoiti). On bark of Leptospermum ericoides. Much in need of collection.

Palaeotropical