79<^ CRYPTOGAMIA ALG^, 



The leaves qf this are pellucid and flippery, of 4! 

 pale green, and fometimes a fufcous green co- 

 lour, very variable in fize and figure, being 

 from a quarttr of an inch to two inches long, 

 and from i-8th to i-3d of an inch wide, grow- 

 ing fometimes proftrate and fometimes ered, ir- 

 regularly fnuated or jagged on the edges, and 

 having downy radicles growing out of the 

 middle nerve on the under fide. 



The leaves which produce the anibera are lefs than 

 the others, commonly proftrate, and more jag- 

 ged, the fegm.ents narrower, and often fubdi- 

 vided into two or three lobes. From the edgej 

 of thefe leaves, or the angles of their fegments. 

 arife white, pellucid peduncles, one or two 

 inches high, having long, cylindrical, pale green 

 vagina at their bafe, and oval or elliptical fhin- 

 ing black antbera on their fummits, which burf 

 into four oval-lanceolate ferments. 



The other leaves, which are wider, taller, lefs di' 

 vided, mor« rigid, often erect, and growing ii 

 ciuiters, are deftitute of antbera;^ but, infteat. 

 ^hereof, have numerous green minute grains 

 or warts, growing along their middle, am 

 fometimes out of their curled edges, which ar<; 

 cither feeds, or the rudiments of future leaves 

 This plant may therefore not improperly b 

 confidered as di^cious^ having a fort of maf 

 and female frudifications on diftind individual 

 of the fatne fpecie$. 



J. acaulis J 



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