182 ; NEW LICHENS. 
Thallus 4-5 inches wide, dusky fawn-coloured, the central 
parts duskier and nearly smooth, the marginal villose 
soredia subglobose, whitish, opening sometimes above 
and displaying a. white cavity. Apothecia large, more 
_ wide than long, the disk very thin, the margin, at length, 
: waved. This, as well as S. sylvatica, Ach., has the apo- 
thecia of a Peltidea, but the thallus of Sticta of Ach. ; but 
ours is very distinct by the villose thallus, the globose 
soredia, the buds few and marginal, and the apothecia 
oblate. 
14. S. divulsa, 'Tayl.; thallo fusco-cinereo, inadéte immutato, 
sinuato-inciso, dichotome pinnatifido, lacunoso-reticulato, 
lobis linearibus, marginatis, erecto-patentibus, glabris, 
nitidis, apice emarginato-bifidis, ceterum integerrimis; 
sorediis minutis, albidis; apotheciis marginalibus, disco 
convexiusculo, rufo-fusco, margine tenui integerrimo, 
extus papilloso-rugosis. ; 
Has. * No. 476. Chonos Archipelago; Darwin. Island of 
Huerffo; Dr. Beck? Hook. herb.—Thallus deeply divided. 
Sinuses oblong. From S. pulmonacea, Ach., ours is diffe- 
rent by the narrower, more divaricating lobes ie Pac 
white soredia beneath the thallus. 
15. S. denudata, Tayl.; thallo orbiculari, cinereo-olivaceo, : 
lævigato, complanato, rugoso, subtus villoso, sinuato, 
late lobato, sinubus minutis circularibus, lobis imbricatis, 
margine integerrimis; apotheciis marginalibus initio g!0-- 
- bosis atque diaphragmate occlusis, demum margine incur- 
vis, Me crenulatis, extus is disco mi- 
centi. 
si Nus 257. ciuem be Mesibékiti- Conall Peru 
` Mathews, Hook. herb.—Thallus 6 inches wide, uneven but 
intimi: Lobes vary in breadth. Buds not a | ; 
- rent on the thallus, but observed. prolonging into fror 
on the margins of the Kt . Ours may be € 
tinguished from the numerous varieties of. S., pulmo 
. Ach, es onside illi : 
