410 HELMINTHOCLADEJE. 



SERIES II. DESMIOSPERME/E. 



INucIeo Cystocarpii nudo aut inter fila vel cellulas frondis su- 

 spense, vel intra pericarpium externura recepto, peridermato 

 nullo communi cohibito, lilis fasciculatis gemmidiiferis constante, 

 gemmidiis intra articulos (iloruni seriatis, aut taiitum in articulo 

 terminali evolntis. 



ORDO VII. HELMINTHOCLADEjE. 



HeliuiiithocladeaB J. Ag, mscr. Cryptonemearura genera J. Ay. Alg. 

 med. Gloiocladea) et Gastrocarpea) (quoad partes) Harv. et Auct. 

 Gymnophlaeaceae et Ilalymenin;c (quoad partes) Kiitz. 



Frons cellulis Bliforraibtis rotnndatisve conlexta; axi fills aut cellulis 

 elonjjatis plus minus dense intertcxtis; strato peripherico lilis 

 monililormibus verticalibus, muco laxiori coliibitis, aut cellulis 

 rotundato-angulatis constante. Cyslocarpia strato peripherico 

 frondis adnata et subinimersa, peridermate nullo obtecta, tilis 

 fasciculatis a centre radiantibus raraoso-fastigiatis constituta, 

 gemmidia singula ovalia in articulis terminalibus (ilorum cvol- 

 ventia. Sphcerospora; (in plurimis ignota 1 ) ex articulis strati 

 peripherici transforinatte, Iriangule divisae. 



Frondes tercliuscuUt-, dicholoma} aut vage ramosa?, raro com- 

 planatic. in plurimis lubricnc, raro gelatinoso-membranacea 1 , colore 

 purpureo s;cpe in viridem tenderite. Axis fere in omnibus filis 

 clongal.is plus minus contorto-intertextis, raro cellulis elongatis 

 latioribus, constitiiitiir. Fx hoc axi oblique excurrunt fila, et stratum 

 periphericum, lilis vcrlicalibus constilutum, elficiunt. Fila periplie- 



