NEW LICHENS. 149 
2. L. glauca, Tayl.; thallo granulato, granulis majoribus, 
confertis, subrotundis, subrugosis, albis; apotheciis atris, 
convexiusculis, subconfluentibus, disco pruinoso, margine 
undulato, nigerrimo, demum excluso. 
Has. Swan River; on clay; Mr. James Drummond.—The 
grains of the thallus are tumid, subangulate, but scarcely 
lobate. A vertical section of the apothecium shews a thin 
pellucid lamina which is striated; the disc beset with dark 
points, the emerging summits of the thecæ, and the lamina 
resting on a thick layer of black matter. This is princi- 
pally distinguished from L. confluens, Ach. by the more 
rotundate and convex thallodal scales, as well as T the 
absence of any black substratum..  - 
3. L. multiflora, Tayl.; thallo granulato, granulis minutis- 
simis, confertis, subrotundis, tumidis, subrugosis, albidis, 
demum in gemmas pulveraceas, fusco-olivaceas erumpen- 
tibus; apotheciis minutis, aggregatis, subsessilibus, sicci- 
tate atris, madore rufo-fuscescentibus, disco scabro, con- 
vexo, margine crasso, vix elevato. 
Has. On bark; Swan River 3 Mr. James Danni 
Thallus extended, creeping, without any distinct border, 
when dry of so dark an olive colour that the apotheciaare —— 
not to be distinguished by the naked eye: the young 
thallus whitish, A vertical section of the lamina s$ 
under a dark primrose disc a rather thick at Er 
- fescent layer resting on whitish | ‘cortical matter. a da | 
thallus, L, seabrosa, Ach., is larger in all its parts, and 
Bae ons spotheci, vines axis i binish m me = 
