CRYPTOGAMIA. ALGAE. 1938. Lichen. 17^ 



B. Receptacle , or §uter coat sf the fructification, of the famefuhftanct % 

 and tolour as the frond. 



10- Receptacle compound; the outer raifed above the crust and wart- 

 like , formed from the frond, perforated with a pore or two or cup* 

 like, including the inner which is globulrr or fattijh: frond crufta- 

 ceous uniform, Thelotrema. 



*pertufus. Somewhat membranaceous, fmooih, uneven, grey: warts 



hemifphaerica!, with a black pore or two. Eng. Bet. t. 677. 

 chianeus. Somewhat leprous: warts much crowded, deformed, pure 



white, dotted with brown within: pores impreflTed, numerous, 



nearly the colour of the warts, becoming perforated with * 



brownifh orifice. Achar. t. 8./*- 2. 

 leucojiomus. Nearly orbicular, brownifh; warts fcattered, brownifh ; 



apertures white, perforated. Arch. Bet. 4. /. \.fe. 

 margaceus. Effufe, unequal, rugged, fomewhat cracked, dull grey: 



warts fcattered, convex, flightly papillate, perforated and of the 



fame colour when ripe. 

 lepadinus. Cartilagino-membrananous, fmooth, glaucous green s 



warts fcattered, nearly conic, gaping, cup-fhaped, brown within; 



margin of the aperture membranous, entire. 

 *2. inclusus. Membtanous. polifhed, cream -colour; warts open, concave, 

 flefh-colour within; margin of the aperture membranaceous, inflected- 

 Eng, Bot. 678. 

 hymeneus. Cartilagino-memhranous, fmooth, becoming uneven, grey- 



ifh: warts rounded, at length deformed angular and half open ; 



difk rather depreflTed brownifh ; margin tumid, {lightly ere n ate,. 



irregular. Schrad. t x. f. 5, 



11. Tubercles roundijh, terminal finchjing a globular nucleus, atfirji 



t'yfed, at length irregularly opening and dij charging the nucleus 

 which gradually moulders into a black dust: frond fh rub by, J olid^ 

 rigid. Sphaerophoron. 



* coralloides. Cartilaginous, yellowifh-grey: branches lax, diva- 

 ricate, cylindrical, fibrinous : tubercles, nearly globular, equal. 

 Eng, Bit t. 115. 



fragilis. Tufted, brittle, grey-brown: branches fliort, crowded, flat- 

 topped, cylindrical, naked : tubercles turbinate-globular, a little 

 warty. Ach. t. 3./. 5. 



-* tompreffus. Tufted, cartilaginous, white becoming brownifh: 

 branches fhort, crowded, plano-compreffed: tubercles nearly 

 globular, deprefTed at top, equal. Eng- Bot. 1 14. 



12. Tubercles fomewhat dijecid, terminal, at first covered with the' 

 frond 9 at lengtb bursting througb and bearing J "mall central co- 

 loured globules which eventually fall off: frond cruttaceous, pa- 

 pillary or branched, Jfidium, 



i! 



