504 



bifidis obtusiusculis, ciliis brevibus tandem elongato-ligulatis 

 Hab. ins. Lord Howe — (FuUagar et Lind.) 

 Obs. Frons tenuis, amoene rosea; facies Callophyllis cili- 



atae quodammodo sinailis, stiuctura vero generis; favellae 



in disco frondis sparsae. 



38. Halymmia ? multifida, sp. nov. 



H. fronde plana, lineari, stipitato-cuneata, gelatinoso- 

 menibranacea, dichotomo-multifida, segmentis basi attenuatis, 

 margine integerrimis vel calloso-denticulatis, apice obtuse 

 rotundatis, multifidis; fructibus 



Hab. ins. Lord Howe — (Fullagar et Lind.) 



Obs. Frons crassiuscula livide purpurascens. Facies item ac 

 substantia Callophyllis, structura vero potius Haly- 

 meniae. Forsan genus aliud, sed, fructu ignoto, nil cer- 

 turn dici potest. Idcirco speciem inter Halymenias pro 

 tempore, usquedum fructus innotescant, enumerandam esse 

 crediderim. 



39. Halymenia ? speciosa, sp. nov. 



H, fronde carnoso-gelatinosa, plana, late lineari, decom- 

 posite pinnata, ramis elongatis ambitu lanceolatis, pinnis 

 pinnulisque oppositis patentibus ligulatis. ultimis linearibus 



acumiuatis, fructibus 



Hab. Georgetown Tasmaniae — (Miss Goodwin.) 

 Obs. Habitus Ho ream speciosam, Harv. fere refert, struc- 

 tura vero satis et ultra diversa. Frons fere tripici strato 

 coraponitur; interiori filis articulatis dense intertextis endo- 

 chromo graniformerepletis;intermedio cellulis miuutis rotunda- 

 tis in fila brevissima articulato-clavaeformia, muco cohibita, 

 terminatis, stratum corticale constituentia. Fructu vero 

 ignoto, inter Halymenias baud extra dubitationem haec spe- 

 cies euumeratur, H. floresiae facie quodammodo similis. 



^ 



Chlorophf/ceue> 



Siphoneae. 



iO. Chlorodesmis major sp. nov. 



Chi. fills crassiusculis, fiaccidis intense viridibus 

 extremitatibus obtusis, tandem humore aurato-rubescente 

 repletis. 



Hab. ins. Lord Howe — (Fullagar et Lind.) 



