CRYPTOGAMIA ALGAE. 1938, Lichen. i 77? 



tmihetinus Membranous, fomewhat flellate, whitifh, black downy 

 beneath: fegments flat, apprefled, naked, nearly linear, many- 

 cleft, obtufe, crenate : fhields cro.vded, glaucous livid-brown 

 becoming blnckifh, with a thin white entire margin. 

 *pulverulentus. Membranous,' ftellate, green-brown with a grey 

 fro ft, black-downy beneath: fegments fomewhat imbricate, 

 apprefTed, fiat, many-cleft, rather linear, cut-crenatc, a little 

 retufe at top: (hields flat, blueifh, with a "tumid involute entire 

 margin. DHL t. 7.4. /. ,71. 

 venustus. Membranous, ftellate, greenifh-white, a little frofted with 

 white, black fibrous beneath: ferments fomewhat imbricate, flat, 

 apprelfed, in many finuate divifions: fhlelds flat, blueiih, pruin- 

 ous, with a thin entire margin, leafy fringed in the circumfer- 

 ence. Achar. t. 8,/' 5. 

 fiffius. Membranous, ftellate, wfiitifli, grey brown and fomewhat 

 fibrous beneath : fegments fomewhat imbricate, flat, lobed, 

 many-cleft, obtufe, with rather raifed mealy edges: (hields blacky 

 with a tumid inflecled white entire margin. 

 rlibigifiofus. Membranous, ftellate, grecnith- white, black and a 

 little fibrous beneath, with an uneven granular centre: fegments 

 in the circumference finuate-lobed, many-cleft, obtufe, crenate, 

 p. little pruinous : fhields rufous, flat, with a granular-crenate 

 whitifh margin - 

 *affinis. Membranous, ftellate, lead-grey, blueifli-fpongy underneath: 

 fegments fomewhat imbricate, finuate lobed, many-cleft, obtufe, 

 crenulate: ihields nifty brown, with an inflecled (lightly crenate 

 whitifli margin. Mng.. Bot 983. 

 *plumbeus. Coriaceo membranous, fomewhat ftellate, dark lead- 

 grey, bhieifh fpongy and downy underneath : fegments imbricate, 

 fiat, broader, rounded-lobed, obtufe: ihields crowded, dark 

 rufous, with an inflecled grey margin becoming crenulate. 

 Eng. Bot t- 353. 

 *farietinus. Membranous, ftellate, fulvous, paler and flightly fibrotfd" 

 beneath: fegments flat, dilated at their tips, rounded -lobed, 

 curled: (hields fulvous, with a thin entire margin . E. Bot, 194. 

 Volivaceus. Membranous, ftellate, olive-brown, fhining, brownilh 

 and a little fibrous beneath: fegments flat, dilated at top, rounded. 

 lobed, wrinkled and dotted; (hields olive-brown, with an inflecled 

 crenulate margin- DHL t. 24. /'. 77. 



2. aspidotus. Membranous, fomewhat ftellate, grey -brown dotted with 

 green, imbricate: fegments irregular, crenate -cut: fhields crowded, 

 )arge, flat, flexuous, rufous-biown, with a granular flattiih margin, 

 DHL t. 24./. 78 . 



3. prolixin. Membranous, becoming efrufe, imbricate, naked, glabrous, 



(Lining; olive-brown, black-fibrous beneath: fegments narrower, rather 

 convex, cut-lobed: fhields olive-brown, with an inflected nearly entire 

 margin, 



