CRYPTOGAMIA. ALGAE. 1938. lichen. 1751 



i % cGrallinbidet. Black-grey : feg^ients of the lobe* running into crowded 

 roundifh coralhform branches: fhields convex, black. 



*niger. Nearly orbicular, imbricate* black; lobes minute ,cut-creriate t 

 the central-ones finely branched: fhields black, concave, becom- 

 ing fiat, Eng. Bot j 161. 



*luridu$. Imbricate ; lobes orbicular* cfenate, brown-green, paler 

 underneath: ftiidds black, becoming convex. Eng. Hot. 1329. 

 2. turbinates* Lobes abbreviate. crenuUte: ihiclds black, turbinate, 

 wrinkled. 



*Jcalaris. Difperfed, imbricate, pale olive; lobes kidney-form, Hither 

 erecl: and diflin&, powdery on the margin and underneath; fhield* 

 irregular, black. Eng Bot. 1501. 

 *2. ptyrmeciniis. GranuLr-imbricate, blackiih grey-brown; lobes much 

 crowded, convex, irregular, grey, mealy on the margin and underneath. 5 

 fhields black. Dili 82. 2. 



*vejicularis. Somewhat imbricate: lobes irregular, convex, a little 

 tumid, obovate, glaucous-mealy: fhields b'ack, with a paler bor- 

 der. Eng. Bot, t, 1139. 



*cdndldus\ Tartareous, fomewhat imbricate, pure white ; lobes 

 fwollen, crenate: fhields convex, blackiih, glaucous- mealy, the 

 margin undulate. Eng. Bot. t. 11 38. 



* decipiens. Difperfed; lobes roundifh, dillinct, rather concave, 

 tawny-red, white at the margin and underneath, becoming con- 

 vex and flexuous : fhields black : marginal, becoming convex. 

 Eng. Bot. 870. 



Ujlaceus. Somewhat imbricate; lobes cluttered, crenate, greenifh- 

 grey: fhields marginal, convex, rufous. Hoffm. t. 22 J. 50 



demijjus. Warty, fomewhat imbricate,,greeniih-grey, with a foU- 

 aceous-lobed circumference ; fhields depreiLd, nattiih, brown- 

 rufous. 



Wahknbergiu Tartareous, orbicular, circularly plaited, greenifh- 

 yellow, with a rounded-Iobedcircumfcription: fhields rather con- 

 vex, black. Achar. t, 2,/ 2. 



Swithii ? Imbricate; lobes crenate, greenifh, white underneath: 

 fhields deformed, yellowifh. Mich, t. i.f. 1. 



cilatusP Tartareous; lobes depreffed, curled, yellowifh grey, white 

 at the margin and underneath: fhields pale rufous. 



m canefcens? Tartareous, orbicular, plaited, whitifh -glaucous, with 

 the circumference lobed ; fhields central, black, margined. 

 E. Bot. 582. 

 c. Frond foliaceous, ftellate, fibrous underneath. Saphenaria. 



Cocoes. Somewhat membranaceous, depTtfTed, orbicular, finuate- 

 lobed, white: fhields flat, margined, fcattered, back. 



fannofus. Membranaceous, d prefFed. orbicular, grey.-brown, dow- 

 ny and black underneath; the terminal ferments many-cleft 

 and flightly crenate: fhields Jlackiifr-rufous, becoming convex. 



