Parmelia . ] 
VII. L1CHENES. 
573 
thecia abundant, terminal, orange; margin fringed. — Physcia, Nyland. Synops. 
Licb. 410. Borrera, Ach. 
Northern Island : on branches of trees, Colenso, Knight. (Cosmopolite.)' 
/3. Tkallus orange-yellow, prostrate. 
14. P. parietina, Acli.;- — Bab. in FI. N. Z. ii. 287. Thallus orbicular, 
small, bright yellow ; lobes marginal, radiating, appressed, rounded, crenate, 
crisped and granulate in the centre ; beneath paler and fibrillose. Apothecia 
deep orange, concave; margin entire. — Physcia, Nyland. Synops. Lich. 410. 
Northern and Middle Islands : common on rocks, wood, bones, etc. (Cosmopolite.) 
y. Thallus white, free, erect or decumbent, very narrow. 
15. P. leucomela, Ach. ; — Bab. in FI. N. Z. ii. 288. Thallus spreading, 
smooth, white on both surfaces, linear, channelled and powdery beneath ; seg- 
ments linear, fringed with long black slender hairs. Apothecia scattered, 
blue-black, with white ‘radiating hairs on the border. — Physcia, Nyland. 
Synops. Lich. 414. Borrera , Ach. 
Northern Island: probably common, Colenso, Sinclair, etc. (Cosmopolite.) 
8. Thallus horizontally spreading, white or grey. 
16. P. speciosa, Acli.; — Bab. in FI. N. Z. ii. 288. Thallus stellate, 
imbricate, greenish-white, somewhat cartilaginous, cut into numerous linear 
multifid segments, tips obtuse and powdery ; beneath snow-white with grey 
fibres. Apothecia brown, with an infiexed lobed or leafy border. — Physcia, 
Nyland. Synops. Lich. 416. 
On stones, wood, mosses, etc., common in the Northern Island: Raoul Island, Milne. 
(Cosmopolite.) 
17. P. pulverulenta, Ach. ; — Bab. in FI. N. Z. ii. 287. Thallus or- 
bicular, stellate, glaucous-green, hoary, ashy when dry, cut into numerous 
oblong multifid flat obtuse wrinkled lobes ; beneath black, downy. Apo- 
thecia glaucous, black ; border thick, infiexed, at length leafy. — Physcia, 
Nyland. Synops. Lich. 419. 
Middle Island : Cook’s Straits, If Urville. — I have seen no New Zealand specimens. 
(Europe and N. America.) 
18. P. stellar is, Ach. ; — Bab. in FI. N. Z. ii. 288. Thallus orbicular, 
stellate, pale grey ; segments linear, rather convex, multifid ; beneath whitish, 
with dark fibres. Apothecia grey-black ; margin entire, elevated, infiexed. — 
Physcia, Nyland. Synops. Lich. 424. 
Northern Island : common on bark of trees, Colenso, etc. (Cosmopolite.) 
19. P. caesia, Ach. Thallus as in stellaris, but the segments have grey 
powdery warts in the centre. — Physcia, Nyland. Synops. Lich. 426. 
Middle Island : trap rocks, Otago, Lindsay. (Europe, N. America.) — I have seen no 
specimens from New Zealand. 
20. P. obscura, Sclioer. Thallus as in P. stellaris, but livid brown or 
ashy-brown. Apothecia brownish-black.— -Physcia, Nyland. Svnops. Lich. 
427. 
New Zealand. (Ny lander.) 
