54 M r * Wood ward* j Obfervailons upon 



ifrtg the fcrm of an open fan, and, at an inch or inch and half from 

 the bafe, is divided into numerous palmated linear fegments, either 

 funple or branched ; in other fpecimens, it proceeds three or four 

 inches without being very much increafed in breadth, and is then 

 in th fame manner divided. The fegments are conftantly fimilar 

 in fubftance to the reft of the frond, and are either entire on the 

 margins, or bordered with a few fmall cilia pointing upwards. The 

 dilated bafe, by which the plant adheres to its place of growth, is 

 covered with a thick woolly down ; the reft is perfectly fmooth. 

 The fructification con lifts of numerous minute grains or feeds, fome 

 of which are fmgle, but the greater part crowded, and difpofed in 

 feparate fafciae, forming parallel fegments of circles, of whrdb the 

 bafe of the plant is the centre, and leaving naked fpaces between 

 the fafcix. In this refpect it correfponds with Ulva pavonia, but 

 differs from that fpecies in its thin and delicate fubftance, in colour 

 nd in form. 



Ulva ligulata — frondibus membranaceis planis ramofis, ramis di- 

 latatis fubdichotomis ligulatis, angulis dichotomias obtufioribus. 

 Species nova. 



Radix callus minimus bulbiformis — Frondes aggregate, 

 coccineae, membranaceae, fubdiaphanse, dodrantales, vel femi- 

 pedales — Frons fingula a tenuiflimo principio orta, modo ad 

 originem modo poft paulum progreflus fit ramofa, ramis dila- 

 tatis, faspius dichotomis, angulis dichotomiae obtufioribus, 

 rariftime trifidis vei quadrifidis. — Ramorum fegmenta linearia, 

 dichotoma, apicibus bifidis acutiufculis, ligulis anguftis obfita. — 

 FrucTificatio granula feu femina minuta intra utramque frondis 

 paginam, necnon in ligulis quaquaverfim fparfa folitaria. 



Hab. in rnpibus et faxis apucl Cromer, Norfolcias. 



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