i 7 6o CRYPTOGAM!^ ALGAE. i 93 3. Lichen, . 



daStylinus. EfTuf., rjigge , fomewhat cracked, papillary- 



branched, white: w g, cylindrical, ftraight, cluftered, 



folid, their tips becoming brown and burfting in cracks: tuber- 

 cles whennakeda little convex Ach. t. -\. f. 6. 

 ^corallinus. Tartareous, areolate, vTarty -branched, greyifh-whit»; 

 globules of the branches of the Uinc colour: tubercle* puctiform, 

 brownilh. Eng. Bo! t. 154;, 

 Wejlrlngiu Tartareous, cracked, unequal, pale-grey, in angular 

 naked and (lightly branched patches: globules of the branches 

 brown. Ach. fr.o.dr.. t i,f. 1. 

 fhymatodes. Leprous* fornnwhat mealy, unequal, pale, papillary- 

 branched^ branches crowded, divided^ wi;h yellowifti giobules. 

 2 pbragtnam fe, fomewhat rsw.ly, fulpaur, a little warty; wans 



very fhort, p*le yellow, bearing globules and tob:rcle5 of the fame- 

 colour. 

 *coccodes r Leprous, fomewhat mealy, cracked, papillary, hoary i 

 warts very fhort, bearing globules : tubercles brownifh-grey. 

 Eng- Boti 1 5 1 1 . 

 2. hucoteus. Leprou% fomewhat rn^alv ?.nd papillary, white: warts vety- 

 fhort, white, bearing globule*: tubercles blueiCi, mealv. 

 ftculatus ? Leprous, papillary, white; watts turbinate: tubercles 

 when naked plano-depreffed, becoming convex, black. 

 Dicks, t. 6. f. 3. 

 defraudans ? Branches crowded, fiat-topp d, united at top into a flat 

 black mafs: tubercles green, cluftered above. 

 13. Shields immerfed in the frond, cmc&vc, invefied with a margin 

 from the frond: frond trustaceous, uniform. Urcaolaria. 

 **calcmrius. Determined, very thin, {lightly cracked, rather mealy* 

 pure white: fhields minute, black, with a rather elevated margin. 

 Achar. t. 4. / 1. 

 &3efju!atus. Determined, glabrous, equal, very thin, teflellate, whi- 

 tifh : fhields brown, becoming emergent with a white margin. 

 Eng Bot. t. 450/* 

 *2. compofous. Tartareous, white, tefluiate: fhields flattifli, black-browa 

 irregular, margined. With t 31. /*. s. 

 ccmpunclus. Very thin, fmooih, grey-white: fliields minute, cup- 



fhaped, black edged with white. 

 tJnereus. Tartareous, teflellate, grey edged with black: fhields black, 

 with a thin entire margin. 

 (3. tigrinus. Effufe, even, .teflellate, milk-white: fhields becoming convex, 



rathir contiguous, black. Hoffmt. $J.f. t. 

 *3* polygcmus. /hin, greyifh, teildlate: fliields 1-3 in each divifion of 

 the cruil, minute, black. E. Bat. 820, 

 ■fefobctryon. Tartareous, fomewhat fpongy, whitifh, a little warty : 

 fliields flattiih, black, with a rugged-crenulate ilightly ineflcted 

 <mar£in. 



