Cladonia rigida (Hook.f. & Taylor) Hampe
Cenomyce rigida J.D. Hook. et Taylor, Hook. Lond. J. Bot. 3: 652 (1844).
Lectotype: New Zealand. Auckland Is. On dry turfy soil. J.D. Hooker, BM!
Primary squamules persistent, large, 1-5 mm diam., thick, coriaceous, olivaceous, tinged brown or yellow-brown above, smooth, glossy, wrinkled, white or buff below, margins knobbly or pectinate or with small, clustered, globose isidia. Podetia arising from upper surface of primary squamules, short, 5-15 mm tall, 0.5-1.5 mm diam., simple, tapering to subulate apices, cups absent, ± conical and tapering, grey-green or ashy, tinged brownish at apices, crowded, corticate olivaceous at base (1-5 mm) grey-brown or pale greenish-white tinged brownish above, densely isidiate, or with whitish, pellucid or cartilaginous patches devoid of isidia. Isidia minute, globose to ± palmate and coralloid. Squamules occasional. Apothecia minute, terminal, dark brown, globose, solitary or ± peltate in clusters of 2-4. Chemistry: Cortex K+ yellow, Pd+ yellow. Thamnolic and decarboxythamnolic acids.
N: Rangitoto I. S: Swampy Hill, Dunedin. A: On soil, among moss on dead wood in subalpine and coastal habitats.
Australasian
C. rigida superficially resembles C. ochrochlora but is smaller, not granular-sorediate, and has a different chemistry.
