196 NEW LICHENS. 
thicker thallus, which is wrinkled on both sides, as well 
as by the rugose and thicker border of the apotbecia. 
7. C. cespitosum, Tayl.; thallo cæspitoso, pulvinato, fusco- 
olivaceo, suborbiculari, imbricato-plicato, plicis centralibus 
erectis, integerrimis, utrinque elevato-rugosis, margine 
undulato-plicatis, asperis, siccitate nigrescentibus atque 
subtus glaucescenti-albicantibus ; apotheciis marginalibus, 
concavissimis, margine incrassato, granulato, disco nigres- 
centi-purpureo. 
Has. In forests; Uitenhage; Cape of Good Hope; Zeyher; 
Hook. herb.—Thallus 1-2 inches wide. The thallus is more — 
thick and carnose than in C. /acerum, Ach. By its margi- - 
nal apothecia it is allied to C. fasciculare, Ach.; but the 
lobes are more round, and never inciso-crenate. 
8. C. vesicatum, Tayl.; thallo gelatinoso-membranaceo, elas- 
tico, subtenaci, plumbeo, utrinque vesicato-plicato, rugoso; 
lobis proeumbentibus, oblongis, subinciso-crenatis; gem- 
mis concoloribus elongato-granulatis ; apotheciis minutis, — 
subpodicellatis, confertis, fulvis, margine crasso, nie 
- rimo, extus gemmis scabro. 
Has. On aged trees; St. Vincent’s; Hook. herb. — Thallus. 
| 3-4 inches wide ; longitudinally plaited when dry ; but when 
wetted the wrinkles expand into elongated vesicles. . 
to C. rugatum, Tayl. Itis, however, more procumbei 
-~ the plaits when wetted are more obtuse; sue the buds 
o fim larger and longer. — e 
C. ol un dina thalie. foliaceo, membranaceo, 3 
He  ; apotheciis sparsis pines mie concavis, disc 
E margine crasso, integerrimo, luteseenti. — 
: Bam Nos. 252. South Amenic, - Humboldt, Hook. te 
= erc the ans dex = Lm ‘of the: hall 
cde das beneath, Y 
