ROCCELLA. 
87 
1 1 . SUCTA F ULIGINOSA. 
S. thallo orbiculato, glauco-lurido, granulis fuscis scabro, subtus cinerascen ti- villoso • 
cyphellis plano-concavis, albicantibus ; laciniis rotundato-lobatis , sub integerrimis ; apotheciis 
sparsis ; disco ferrugineo nigroque; margine thallode elevato, integerrimo. Ach. 
Sticta fuliginosa Ach. Synops. Lich. p. 236 .— Synops. Piant. xq. 1. p. 29. 
Lichen fuliginosus Dick. Smith. Engl.Bot. t. no 3 . 
Lichen ambavillarius Bory , Voy. 3 . p. 100. 
/ 3 ) Granulis obsoletis. 
Crescit var. /3 ad corticem arborum , in devexis montis Rucu- Pichincha, juxta Quito , 
ait. 1900 liex. 
ROCCELLA. Achar. 
Receptaculum universale coriaceo-cartilagineum, ramoso- laciniatum , 
teres vel planum, erectiusculum vel pendulum, intus stuppeum; par¬ 
tiale scutelliforme, crassum, thallo innatum. Lamina proligera, discum 
elFormans, plano-convexa, colorata, cartilaginea, hyalina, similaris, 
margine thallode demum prominente sessili discumque aequante cincta 
massam sublentiformem pulveraceam compactam atram, intra sub¬ 
stantiam thalli reconditam, obtegens. Ach. 
1. ROCCELLA TiRCTORiA. 
R. thallo tereti, glauco- viridi, subramoso, erectiusculo; apotheciis sparsis, elevatis; disco 
plano, caesio-pruinoso, marginem thallodem aequante. Ach. 
Roccella tinctoria Ach. Synops. Lich. p. 243.— Synops. Piant, oeq. 1. p. 29. 
Parmelia Roccella Ach. Meth. Lich. p. 274* 
Lichen Roccella Linn. Smith. Engl. Bot. t. 211. 
Crescit locis montosis , in porphyrite, juxta Riobambam , ait. 1482 hex ., et in salsis 
maritimis Oceani Pacifici , prope Chancay Peruvianorum. 
2. ROCCELLA FuciFORMis. 
R. thallo plano, cinereo-virescente, dichotome laciniato; laciniis attenuatis; apotheciis 
marginalibus. Ach. 
Roccella fuciformis Ach. Synops. Lich. p. 244 *— Synops. Piant, oeq. 1. p. 3 o. 
Parmelia fuciformis Ach. Meth. Lich. p. 258 . 
Lichen fuciformis Linn. Smith. Engl. Bot. t. 728. 
Crescit cid arbores in summo monte Tumiriquiri , ait. 708 hex. [Provincia Cumanensi.) 
Variat insigniter quoad formam magnitudinemque. An praacedentes et R. phyeopsis una eademque 
species ? 
