CRYPTOGAMIA. ALGAE. 1938, Lichen. 1771 



2* litboteus. Membranous, ftellate, brownifli-grev black and fpongy be- 

 neath.* fegments imbricate, flat, many-clefr, very narrow, pedate-cut 

 and {lightly ciliate at their tips; ftiie'rds central, flat, black, with a grey 

 margin,. 

 *uhlhrix. Somewhat membranous* flellate, grey-glaucous, with 

 black fibres beneath : fegments narrow many-cleft, rlexuour, 

 flightly ciliate: fhields black-brown, ciliate underneath, with a 

 grey margin, Dilh t 24./. 72. 

 virel/us. Somewhat membranous, flellate, grey- green, black and 

 fpongy fibrous underneath: fegments fhort, fomewhat imbricate, 

 flat, cut lebed, rather obtufe: fhields flat, rufous, with an inflected 

 greyjfh entire margin. 

 flteimis.' Cruflaceo-membranous, flellate, olive-green, nearly naked 

 ami olive-green beneath: fegments appreffed, flat, pinnate-cur, 

 lipear ami fomewhat truncate in the circumference: fhields cen- 

 tral, timbre brown, with an olive-green margin. 

 th,i(urvus. Cruflaceo- membranous, flellate, greenim-grey, black and 

 fibrous-fpongy beneath: fegments fomewhat imbricate, narrow, 

 many-cleft, incurved at the margins and tips : fhields rufous, 

 with an infie&ed greenifh margin. Eng. Bot. 1375- 

 ^cqullus. Cartilagino- membranous, fomewhat flellate, tawny-brown, 

 paler with dark fibres beneath : fegments imbricate, very narrow, 

 many-clefr, recurved at the edges, deflecled and broader in the 

 circumference: fhields dark brown, with a paler crenulate margin* 

 Eng. Bo I t. 982. 

 fl. iiipf.<eus. EfFuie, imbricate, black-brown: fegments thinly branched, 

 crosvdeq, very fhort, incumbent; fhields flat, dilated, bay, with as 

 infleclcd crenulate margin. 

 $ncauftv.s. Cartilagino- membranous, fomewhat flellate, mining, 

 black beneath: fegments fomewhat cylindrical, forked, dotted : 

 fhieids bay, becoming lobed, with a white margin. 

 Linn. Trans* I. /. 4. f 6 

 fflygius. Cartilagino-membranous, flellate, fhining, pitchy-black 

 both fides: fegments fomewhat imbricate, in many palmate di 

 vifions, narrow, recurved at the edges : fhields pitch) -black, 

 with a thin crenulate margin. Hoffm.t. 14./. 2. 

 Jahlunenfis. Cartilagino-membranous, flellate, black both fides 1 

 fegments fomewhat imbricate, many times forked, narrow, fiat- 

 tifh, with flightly raifed lacero- granular edges : fhields olive- 

 brown, with thin granular margin. DHL t, 24. /". 81. 

 2. bepatiz.cn. Cartilagino-membranous, fomewhat flellate, black-brown 

 both fides; fegments cut-lobed, broader, expanded, with fomewhat 

 raifed curled edge?: fhields brafs-brown, becoming flexuous, with a 

 thin granular margin, 

 t. sciastrus. Cartilagino-membranous, flellate, black-brown, deep black 

 beneath with black fibres: fegments fomewhat imbricate, narrow, many- 

 cleft> flat: fhields concave, black-brown, with an entire margin. 



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