697 



Jeanner cttia Harv. 

 1. J. lobata Harv. Ner. austr. p. 20. t. IV. 

 Ad litns peninsulae Lefebre, Jul. 



Keramidia in fronde sparsa, sphaerica, pedicellata, car- 

 postomio aperta. Gemmidia pyriformia vel oblonga, basi sti- 

 pitato- angnstata, perisporio hyalino cincta, in filis ramosis, 

 e placenta basilari radiantibus terminalia. 



Sarc Omenta Sond. 

 1. S. delesserioides Sond. PI. Preiss. II. p. 194. Harv. 



Ner. austr. p. 21. 

 Guichen -Bay. 



Pollex fenia Harv. 

 1. P. pedicellata Harv. Hook. Lond. Journ. III. p. 431. 

 Ner. austr. p. 22. t. V. 



ß. angnstata Harv. in litt, fronde subangustiore laci- 

 niis angustis obtusiusculis acutiore. 



Van Diemeusland (Stuart). ß. ad litns peninsulae Le- 

 febre, Jnlio , Decembr. 



D icty m enia Gr ev. 

 1. D. tridens Grev. fronde basi canlescenle tereti pinnato- 

 ramosissima, ramis ramulisqne patulis alternis planis mem- 



branaceis oostatis margine fimbriato-dentatis, dentibus bi 



tricuspidatis , stichidiis pedicellatis ramosis e costa frondis 

 media vel nervis lateralibus enatis spha'erosporas triangule 

 divisas foventibus. 



Fucus tridens Turn. t. 143. 



Ad litora peninsulae Lefcbre, Julio. 



Radix fibrosa. Frons pedalis vel ultra. Caulis peunam 

 anserinam crassus, distiche ramosissimus. Rami majores circ. 

 spithamaei, ramuli sensim minores. Costa crassa, ramos pri- 

 marios percurrens, in ramis secundariis sensim tenuior, in 



