1770 CRYPTOGAMIA. ALGAE. 1938, Lichen. 



d. 



.3. cbhteratus. Granular, yellowim, with a nearly orbicular ilightly-lobed 

 circuiriYience, flncid- flat, much crowded, central, becoming angular 

 and convex, orange with a paler margin. 

 fhhrsphanus. Crrftacto-frondofe, fomewhat tartareous, thickiih, 

 deep yellow, radiately plaited, with nearly cylindrical lobes : 

 fhieid 1 flarnihand convex, deep yellow. 

 *Murorum Paited-wrinkled, cracked, orbicular, greenifh-yellow, 

 with a radiate- plaited circumference; lobes cut, concrete; fhields 

 becon in.,; convex, nearly the colour of the frond, with a paler 

 margin. Hoffm. /. 9. f. 2. 



2. auretius. F'.'iid hardly any; fhields difperfed, minute, yellowim, with a 

 thin paler margin. Hoffm. t. 50./I 2. c- d % 



3. Oeropeus. Effufe, irregular, flightly cracked, mealy, pale yellow; fhields 

 very minute, rather convex, yellow with a paler margin. 



Frond foliaceous, fomeivhat membranous, depreffed, Jiellate, more 

 orlefs imbricate, fibrous underneath. Circinaria. 



qielanafpis. Cruftaceo-membranous, ftellate, glaucous-grey, whi- 

 tifh with grey fibres underneath: fegments of the circumference 

 in many linear divifions; fhields convex, black, with a gre) ifh 

 margin at the bafe. 



*cajius. Cruftaceo-membranous, ftellate, greyifh- white, grey with 

 blackim fibres underneath: fegments of the circumference cut- 

 crenate: fhields flat, grey-glaucous, becoming blackifh, with 3 

 thin raifed flightly inflected margin. Eng. Bot. t. 1052. 

 2. dubius. Crultaceo-membranous, fleikte, glaucous-grey, grey with black 

 fibres underneath; fegments fomewhat imbricate, linear, narrowed, con- 

 vex, many-cleft: a little dilated at their tips, becoming mealy at the 

 margin : fhields black-brown, with an entire ilightly inflected white- 

 margin. 



jpeciojus. Cartilagino-membranous, ftellate, glabrous, blueifli- white, 

 fnowy with grey fibres underneath : fegments deeply cut in 

 many linear divilions, obtufe, margined, (lightly ciliate; fhields 

 rufous brown, with an inflected ilightly crenate margin Jacq t 7 



hphyreus Membranous, ftellate, glabrous, white, black naked with 

 hollow dots underneath: fegments narrow, many-cleft, fome- 

 what imbricate : fhields reddifh, with an infle&ed nearly entire, 

 margin. 



teptaleus. Somewhat membranous, ftellate, greyifh, beneath whit ifh 

 with back brown fibres; figments linear, flexuous, many-cleft, 

 ciliate with fibres: ihields black, with a flightly crenate inflected 

 white margin. Dill, t 20 f, 46. A. B, 



eyclojelis. Somewhat membranous, ftellate, grey-glaucous, fome- 

 what fpon^y with black fibres underneath : fegments rat he 1 

 imbricate, flattilh, many-cleft, cut, flightly lobep 1 , with raifet 

 rather mealy edges; fhields biacU-brown, with an inflected gxt\ 

 margin becoming ere nu la; v. ^Hof'm t. q. f. 1. 



