180 NEW LICHENS. 
colour when wet, brick red and puinose when dry. 
Lamina proligera pale, containing vertical cylindrical 
thecæ, whose summits scarcely reach to the disk. The 
thallus is furnished beneath with white filiform vessels, 
which appear like the surface of writing paper as viewed 
by a magnifying-glass; there are here, besides, subrotund 
bundles of olive-coloured radicles. There are no cyphelle 
present. : 
9. L. lacunosa, Tayl. ; thallo orbiculari, inciso-lobato, pallide 
virescenti-cinereo, minute lacunoso, lobis radiantibus, 
apice dilatatis, rotundatis, crenatis, subtus pallidis, sub- 
tomentosis; gemmis marginalibus, linearibus, planis, 
pallidis; apotheciis sessilibus, rufis, margine demum 
gemmis coronato. 
Has. Brazil; Mr. R. Leyland's herb.—Thallus membrana- 
ceous, thin, smooth, reticulated and pitted. Beneath 
there are convex papule and a whitish scattered down. 
Apothecia usually marginal. The /amina proligera is very 
thin. No cyphellæ present. Buds on the margins of et 
apothecia flat, subrotund, subconfluent. 
10. S. imbricatula, Tayl.; thallo minuto, subimbricato, 
cinereo-virescenti, rugoso, lobis sinuatis, rotundatis, inte- 
gerrimis, sinubus circularibus, subtus concolori, : 
loso; sorediis minutis, flavis ; apotheciis sparsis, demum 
planis, disco “béta: nadar sit enulab 20108 — 
Has. * No. 1662, ad arborum corticem in sylvis montium E 
editoribus, Insule Juan Fernandez ; Maio, 1830 ;” Bertero - 
the o thallus is {ph es The apothecia have the habit of. : 
m iy soak aiy doad ü | " 
11. te Tayl. ; thallo cubstellat, oat, -— 
