Flora of New Zealand Series

≡Cetraria lacera Hook.f. & Taylor, Lond. J. Bot. 3: 646 (1844).

=Sticta filix var. parvula Nyl., Bot. J. Linn. Soc. 9: 247 (1866).

≡Sticta parvula (Nyl.) Nyl., Lich . Nov. Zel.: 33 (1888).

≡Lobaria parvula (Nyl.) Hellb., Bih. K. Sv. Vet.-Akad. Handl. 21 (3/13): 34 (1896).

Lectotype: New Zealand. Sine loco. Mr Logan – BM [fide Galloway (1985a: 557)].

Sticta filix var. parvula. Lectotype: New Zealand. Nelson, Tarndale, A. Sinclair – E [fide Galloway (1985a: 557)].

Descriptions : Flora (1985: 556–557); Galloway (1997: 140–141).

N: Northland to Wellington. S: Nelson to Southland, both E and W of Main Divide. St: C: [map in Galloway (1997: 142, fig. 28)]. Among mosses on tree trunks in moderate shade in forested areas, on soil on rocks in humid sites, rarely on rocks in tussock grassland (Campbell I.), s.l. to 1000 m, coastal and inland.

Endemic

Illustration : Galloway (1997: 140, fig. 27).

Sticta lacera is characterised by: the corticolous/terricolous/saxicolous habit; small, fragile, highly dissected thalli, with a small, often proliferating stalk, a character at once distinguishing it from S. martinii. The orange-yellow to ochre-brown pigmentation of the stalk and midrib (often more noticeable on storage in the herbarium) is characteristic, as are the glabrous lower surface and the minute, pinprick-like cyphellae. It often forms extensive swards among mosses on tree bark or on stones on the forest floor.