Endocladia. HYPNEACEiE. 557 



provenit; nunc pariter ac in cseteris Desmiospermearum or- 

 dinibus articulata et acl articulos ramulosa, in articulis ter- 

 minalibus raraulorum gemmidia obovata generantia (Ecto- 

 clinium). • 



Hypneacese, quales lioc loco circumscribuntur, sunt invi- 

 cem ita diversa? ut a Generibus axi monosiphonio articulato 

 intra frondem subtubulosam instructis ad Genera axi cellu- 

 loso constituta — tamen cellula centrali ssepius dignoscenda 

 — adscendant. 



Disponantur : 



TKIBIIS L E^DOCLADIEili fronde subtubulosa, axi monosi- 

 phonio articulato tubum percurrente, ramis ab axi egre- 

 dientibus stratum periphericum contiguum tubulosa) fron- 

 dis sustentantibus ; nucleolis paulo distantioribus in nu- 

 cleum compositum minus conniventibus. 



Fronde evidentius tuhulosa aculeata .... CXXXVII. Endocladia, 

 „ „ molliore . . . . ? CXXXVIII. Gattya. 



TRIBIjS IL HYPNEtE fronde cellulosa solida, nucleo evi- 

 dentius composito. 



Strato medullari ceUulis subdiversis (angustiorihus), in cellu- 



las exteriores sensim aheuntihus, constituto. 



Pericarpio supra /rondem sensim eminente . . CXXXIX. Htpnea. 

 „ externo suhproprio CXL. Rhododactylis. 



Strato medullari filis angustiorihus inter ccllulas magnas strati 

 medii excurrentihus constante. 



Sphcerosporis fronde vix mutata immersis . . CXLI. ? Dasyphl^a. 



CXLII. Mychodea. 

 „ in soris externis nematheciosis . CXLIII. Ectocliniuk. 



CXXXVIL ENDOCLADIA J, Ag. in Linncea 1841. Sp. Alg. p. 

 236. Acanthohohis Kiitz. Acantliocladia Bupr. 



Frous teretiuscula ramosissima aculeata cartilaginea, quasi 

 filis in frondem coalescentibus contexta, nempe axi mo- 

 nosiphonio articulato, ramisque ab eo verticillatim egre- 

 dientibus di-polychotomis fatigiatis, extrorsum monilifor- 



