570 
VII. LICHENES. 
[Sticta. 
In Lindsay’s enumeration of Otago Lichens, I find the following, which I have not iden- 
tified : — S. dissimilis, Nyland .,fuliginosa, Dicks., subcoriacea, Nyland. n. sp., dissimulata , 
Nylaud., and episticta, Nyland. n. sp. 
18. RICASOLIA, De Notaris. 
Thallus of Sticta, but usually without soredia on the upper surface, or 
cyphellas on the lower (except R. coriacea). Apothecia with a prominent 
margin. Spermagonia in prominent mamiUae. 
A genus of 14 tropical and temperate Lichens. 
1. R. coriacea^ Nyland. — Sticta , Tayl. ; — Bab. in PI. N. Z. ii. 283. 
t. 125 A. Thallus pale or lurid yellow, 5-6 in. broad, smooth, with unequal 
depressions, divided and lobed ; lobes lobulate, crenate and pilose ; beneath 
white, tomentose, with white pulverulent cyphellae. Apothecia rufous, 
scattered; margin fimbriate. — Nyland. Synops. Lich. 367. 
Northern and Middle Islands : common, J. D. H., etc. 
2. R. glomulifera, De Notaris. — Sticta, Del. ; — Bab. in PI. N. Z. ii. 
284. Thallus pale, glaucous, 6-12 in. broad, opaque, thickly membranous, 
smooth or rugose, laciniate ; lobes crowded, sinuate-lobulate ; beneath pale, 
with brown or white rootlets. Apothecia rufous or brown; margin entire, 
usually indexed. — Nyland. Synops. Lich. 369. 
Northern and Middle Islands: on hark, Colenso ; Otago, Lindsay. (Europe, 
America.) 
3. R. herbacea, De Notaris. — Sticta, Del.; — Bab. in PI. N. Z. ii. 
284. Thallus pale, lurid or glaucous, 6 in. broad and upwards, membranous, 
shining, smooth or rugulose ; lobes crowded, crenate and undulate ; beneath 
pale with white rootlets. Apothecia rufous, large; margin entire or obso- 
letely crenulate, opaque, obsoletely rugulose. — Nyland. Synop. Lich. 369. 
New Zealand, Raoul. (Europe, America, S. Africa.) 
4. R. Montagnei^ Nyland . — Sticta, Bab. in FI. N. Z. ii. 284. Thal- 
lus glaucous, subrufous, foliaceous, corrugated ; lobes rounded, subsinuate, 
crenate, scaly at the margins ; beneath naked, ferrugineous or blackish, with 
a few obsolete white cyphellae ; fracture white. Apothecia free, broad, 
scattered, often crowded, black ; margin deeply indexed, often lacerate, sub- 
serrate and leafy. — Nyland. Synops. Lich. 373. 
Northern and Middle Islands : on wood, Sinclair, Lyall. 
19. PARMELIA, Ach. 
Thallus spreading from the centre, usually foliaceous, membranous or 
coriaceous, laciniate or lobed, rarely with terete fistulous lobes ; upper sur- 
face usually shining ; internal substance of matted fibrils ; under surface until 
fibrils. Apothecia with a thalline border, scattered, often shining; para- 
pliyses separate or not separate; spores ellipsoid. Spermagonia innate; 
spermatia various. 
One of the largest genera of Lichens, found in all latitudes. 
