Flora of New Zealand Series

X. minutella (Essl.) O.Blanco, A.Crespo, Elix, D.Hawksw. & Lumbsch, Taxon 53 (3): 969 (2004) [non X. minuta D.Knox & Hale].

≡Parmelia minuta Essl., J. Hattori Bot. Lab. 42: 124 (1977).

≡Neofuscelia minuta (Essl.) Essl., Mycotaxon 7: 52 (1978).

Holotype: New Zealand. South Auckland, Mt Tarawera, 915 m, 1966, A.E. Wade s.n. – BM.

Description : Flora (1985: 305–306 – as Neofuscelia minuta).

Chemistry : Cortex K−, HNO3± dark blue-green; medulla K−, C+ rose, KC+ rose, Pd−, UV−; containing gyrophoric acid.

N: South Auckland (Hunua Ra., Mt Tarawera). On rocks.

Endemic

Illustration : Esslinger (1977b: 200, fig. 111 – as Parmelia minuta).

Xanthoparmelia minutella is distinguished by: the saxicolous habit; its small size; the characteristic central lobules that should not be confused with isidia; and the chemistry of gyrophoric acid as major medullary compound.