ROCCELLA. 115 
ROCCELLA. Acran. 
ReceeracutLUM universale coriaceo-cartilagineum ,' ramoso- laciniatum ; 
teres vel planum, erectiusculum. vel pendulum, intus stuppeum; par- 
tiale scutelliforme, crassum, thallo innatum. Lamina proligera, discum 
efformans, plano-convexa, colorata, cartilaginea, hyalina, similaris, 
margine thallode demum prominente sessili discumque zequante cincta , 
massam sublentiformem pulveraceam compactam atram, intra sub- 
stantiam thalli reconditam, obtegens. ch. 
1. ROCCELLA -iNCTONI4. 
R. thallo tereti, glauco- viridi, subramoso,, erectiusculo; apotheciis sparsis , elevatis; disco 
plano, cxsio- pruinoso, marginem thallodem zquante. cA. 
Roccella tinctoria /fcA. Synops. Lich. p. 2343.—Synops. Plant. cq. x. p. 29. 
Parmelia Roccella 4c. Meth. Lich. p. 274. 
Lichen Hoccella Linn. Smith. Engl. Bot. t. »11. 
Crescit. locis montosis , in porphyrite, juxta. Riobambam , alt. 148». hex. , et in salsis 
maritimis Oceani Pacifici , prope Chancay Perupianorum. 
2. ROCCELLA rucrmonuis. 
R. thallo plano, cinereo-virescente, dichotome laciniato; laciniis attenuatis; apotheciis 
marginalibus. fc. 
Roccella fuciformis 7c. Synops. Lich. p. 244.— Synops. Plant. ceq. 1. p. 3o. 
Parmelia fuciformis ^c. Meth. Lich. p. 258. 
Lichen fuciformis Linn. Smith. Engl. Bot. t. 728. 
Crescit ad arbores in summo monte Tumiriquiri , alt. 508 hex. (Provincia Cumanensi.) 
Variat insigniter quoad formam magnitudinemque. An precedentes et R. phycopsis una. eademque 
species ? 
Nov. Grw. gr Srzc. Towvs VII. 
