450 



sejancios steriles, ah ipsa origine nudos nee margin e circrnn- 

 datos, in utraque thalli pagina obvenientes, aggregaiae, sim- 

 pltces, snbclavatae, ariiculatae, snberectae, — - Goaophyses 



mtllae. 



Oedogonia in direr sis individnU (nee in thalamiiferis) ob- 

 Yemen tia, solitaria vel irregttfariter approxiinata , in utraque 

 thalit pagina sparsa. 



Syn 9 Neurocarpv* Weber et Mohr (Beitr&ge w Na- 

 turk, I. p. 204, 1805), Fotypodioides Stackh, (in Mem. soc< 

 natur. Mosqm II. p. 97. 1809)* Haliscris Agardh (Spec, 

 Algar. t 1. p. 141. 1821); 



Obs. Nomea generienm a dar. Weber et Mohr propo- 

 fiitum quidem antiquing, sed inter Legtiminosas Neurocarpum 

 Desvauxii adest. Tbalamia in D. potypodtoide > plagio- 

 grammq, et serrulata eecus costam longitudinaliter insidenlia 

 obyeniunt; in D, delicatula autem in duabns lineis parallels 

 marginalibus ordinata et in D„ Junta et lineari sparsa ob~ 

 senantnT. 



* Dichotomae* 

 1, Bictyopteris Jttstli Lamour, 



Haliscris Justii Agardh. 

 Hab+ Mare Antillanim, 



2* IMctywpterfs polyp ©df of des Lamour. 



I>% elongata L amour. Haliscris polypodioides Agardh. 

 Halidrys membranacea Stackh. (Ner, britann. Edit. U.) 

 JFucv* polypodioiden Desfont, K membranaceus Stackh* 

 (Ner. britann. Edit. J.) F. ambiguus Clement. Viva poty~ 

 podioides DeCand, 



Hab. Mare mediterrancnm, aegenm s adri&ticnm, Ocea- 

 nia atlanticus ab Anglia nsque ad insnlas Canarienses etBra- 

 diliam. Ocean us auatralis ad Tasmaniam. • 



