54 ^^' WoODWARD'i Obfervatlons upon 



jiT-o the form of an open fan, and, at an inch or inch and half from 

 the bafe, is divided into numerous pahnated hnear legments, either 

 fimple or branched ; in other fpecimens, it proceeds three or lour 

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

 in th fame manner divided. The fegments are conftantly fimilar 

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

 margins, or bordered with a few fmall ciUa 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 perfeftly fmooth. 

 The fructification confifts of numerous minute grains or feeds, fome 

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

 feparate fafcia;, forming parallel fegments of circles, of which the 

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

 the fafcix. In this refpedl 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 aggregata?, 

 coccineae, membranaceae, fubdiaphanae, dodrantales, vel femi- 

 pedales — Frons fingula a tenuiffimo principio orta, modo ad 

 originem modo poft paulum progreflus fit ramofa, ramis dila- 

 tatis, fspius dichotomis, angulis dichotomiae obtufioribus, 

 rariffime trifidis vel quadrifidis. — Ramorum fegmenta lincaria, 

 dichotoma, apicibusbifidis acutiufculis, ligulis anguftis obfita. — - 

 Frudlificatio granula feu femina minuta intra utramque frondis 

 paginam, necnon in ligulis quaquaverfim fparfa folitaria. 



Hab. in rupibus et faxis apud Cromer, Norfolciae. 



3 This 



