1790 CRYPTOGAMIA. ALGAE. 1938. Lichen. 



•i. hjfoideu Greenilh-grey, mealy: ftalks white, comprefTed, dilated 



upwards: tubercles globular, becoming cluftered, brown, E. Bot. 373. 

 3. ttgnorum, Tartareous, granular-cracked, dirty grey. glaucous: ftalks 

 fhort, comprefled, broader upwards, whitilh: tubercles convex, moftly 

 fimple, blackifli-brown. 

 * 4. rufus* Leprous, granular, greenifh-grey; ftalks greenifti-grey, very 



fhort, cylindrical: tubercles fmall, moftly fimple, flattifh, pale rufous. 

 c. Sabuletorum. Leprous, greenifh ; ftalks very fhort: tubercles nearly 

 feffile, flattilh, Wick. 

 placophyllus. Greeniih-glaucous, rugged-plaited, orbicular, with a 

 leaf) rounded-lobed crenate circumference: ftalks thick, com- 

 prefled, greeniih-glaucous: tubercles iimple, flattifh, 'dull brown. 

 Achar. t. 7./'. 4. 

 b* Crujlaceous, effufei tubercles on fiftular inflated mojlly fimple brittle 



fiaJks. Pycnothele. 

 Jolecinus. Granular-lobed, moufe-colour: ftalks cylindrico-inflated, 

 granular, fimple, greyifb-white: tubercles folitary,rufous-brown. 

 Achar. t. 7./' 2 



c. Foliaceous, cartilagino cm/laceous, lobed: tubercles fejjile on the 

 frond or nearly fo. Phyllocarpon. 



rubiformis. Segments of the lobes roundifh, crenate, pale greeniftu 

 brown, whitifli beneath and on the margin: tubercles feflile, fmall, 

 globular, black-brown. Ach t. 7./. 3. 



flrepfilis. Pale-greeniih, pure white and pitted beneath: fegments 

 ereel, crowded, linear, many-cleft, curled and incurved at top : 

 tubercles marginal and terminal, nearly globular fmall, cluttered, 

 nearly fertile, brown. 



epiphyllus. Segments cut crenate, afcending, fomewhat imbricate, 

 greenihVbrown, pure white and a little mealy beneath : 

 tubercles feffile, nearly fimple, at length cluttered, biack-brown. 



aefpiticus. Segments pinnatind-cut, jagged-curled, 'rich green,, 

 white beneath : tubercles nearly feffiie, cluttered, a little rugged* 

 rufous. ' 



d. Foliaceous, cartilagino-crujlaceous, imbricate : tubercles on long 

 cylindrical mojlly f olid stalks, which are fimple or divided at top. 

 Helopodium. 



fymphy carpus- Segments cut-crenate, grey greenifh-brown, white 

 * beneath ; ftalks fhort, the colour of the frond, a little pervious 



and (lightly branched at top : tubercles crowded, brown. 



Hoffm, /. S./.4. 

 cariojus. Segments minute, cut-crenate, whitifti-green : ftalks carious, 



cancelled, rough, whitifti-green, a little pervious and branched 



at top: tubercles crowded, purplifh -black. Aft. Stock. 5. t. 4.J.4.* 

 botrytes. Segments cut-crenate, pale greenifh: ftalks fiftular, p^iifh, 



rugged-granular, branched at top: tubercles rather diftin£t,, 



brownifh yellow. Jaca, coll. 4. 1.4../. 3. 



