1752 CRYPTOGAMIA. ALGAE. 1938. Lichen. 



gojjypinus. Neary orbicular, foft, mealy, whitifh and downy both 

 i. .-:-, with rounded cut-cr- >es: fhields flat, hiack; the mar- 



gin becoming infi. ctyd and me.; v.^vhi,^. 



d. Vrond foil ace ous y peltate. OffiprhVarta . 

 *pujiulatu$. Umbi'icate, membtaceous, lobed, greenifh-grey biiftered 

 and warty above, dark olive and deeply pitted underneath: fhields 

 fiat, bl acl , margined, becoming plaited, E. Lot. 128?. 

 penfylvanlcus. Umbilicate, foniewhat membranaceous* grey-brown 

 wrinkled and h\\ ftered above, [rack-brown pitied and granu'ar 

 underneath : fhields flattifh, black, vvith a rather fiexuous mar- 

 gin. Hoffnn t.bq.f. 1 2. 

 3* Tubercles hardljh, moflly feated on a /talk, becoming Jhield-likc 

 and margined: frond Crusfaceous. Calicium- 

 flrigoneiius. Cruft none: tubercle nearly globular, minute, 



b'ack, with a flattilh opakedifk, and rhih glabrous margin- 

 tympanellus. Leprous, unequal, gn feiljle,- black; ciifk flattifh, 



dilated gre) mealy; margin thin, equal. 

 Obs. Tj - s r the fame as iyiHpanis Maligna, 



turbinates. Heads turbinate j nearly Geffile, black, rather poHfhed, 



v. Morm difk within the connivent margin 



parolcv.s. Crufl hardly any: heads turbinate-lenticylar, totally black, 



an . ./ r. /. 2./' 3 



*cL. e u 1 rous, rugged, greyiih-white, fomewhat mealy: tu- 

 berc .arrica!, flattifh, with a paler margin, on black 



rigid cj ':• ' :al ftalks. E Hot. 1465. 

 *£ranifarmis G inular, leprous, grey i ill- white; tubercles fcattered, 

 roundifh, b{ack, p0lifhed, wrinkled, moftly feflile, without bor- 

 der. Eng. Bot. /. 1464. 

 trachellnus. Grey i«:i- white, thin : tubercles lenticular, glabrous, 

 underneath and on the margin dull brown, the difk and bafe of 

 the ftalk black. 

 *JphxrQcepht\us. Yellowifh very thin : tubercles black, nearly glo- 

 Elattifh, without margin, on black filiform iialks. 

 Sot. t 414. 

 2i Thin, grey: heads turbinate -funnel -form, black, grey-mealy. 



3. Thin, grey; heads nearly cylindrical, with a very prominent 

 m 



4. fpfilhs. Thin, whitifh -meal 7: heads nearly globular, black^aaked, on 

 fh'ori (Ulk*. 



xytonellus, Slightly leprous and granular, glaucous-grey : tubercles 



rpus, globular, becoming turbinate and cup-fhaped: 



the di k rlat, de-*p-black; pedicels grey at the bafe. 



*irai Fugged, thia, browniih-white: heads fphasrical, flattifh, 



"greenifh-yeUovr, with a dark -brown powdery" difk, on fhortifh 



brown itaiks. Eng. Bot* /. 1540. 



