(41 ) 



8 Ch. Braunii Gmel. 



p. foliolosa Schwcin. 

 y. Perrottetii Al. Draim. 



9 Ch. eremosperma Riipr. 



2 Sect. POL.TSlPHO!VICyE. 



Caulis semper composite tiibulosus, corticatus, sulcato-slrialus, ssepe 

 strigosus. Antheridia extrafoliacea, hypogyna. 



A. Heterosiphonicce. 



Caulis corticatus. Ramenta omnino ecorticata. simpliciler tubulosa. 



a. Caulis strigosus s. aculeolalus. 



4 Ch. scoparia Bauer. 



11 Ch. Hornemannii, mihi. [p. 2,77) 



12 Ch. Preissii Al. Braun. 

 ,13 Ch. flaccicia Al. Braun. 



1i Drummondii Al. Braun, 



15 Ch. Hookerii Al. Braun 



b. Caulis inermis. 



16 Ch. fibrosa Agardh. 



B. Polysiphonicce propriw. 



Caulis et saltem unum alterumve internodium ramentorum composite 

 tubulosa, corticata. 



a. Strigom. 

 Caulis strigosus vel aculeolatus, aut superne papillis obsitus. 



-]- Monoicce. 

 Ser. Gymnopodice. Al. Braun. 



Internodium ramentorum basale ecorticatum , pellucidum ; cetera passim 

 corticata. 



17 Ch. Ilydropitys Reichenb. 



18 Ch. nudipes , mihi. 



19 Ch. foliosa Willd. 



20 Ch. Martiana Al. Braun. 



21 Ch. ceylonica Klein. 



22 Ch. polyphylla Al. Braun. 

 Ch. Michauxii Al. Braun. 



|3. Meyenii Al. Braun. 



23 Cli. Commersonii Al. liraun. 



24 Ch. javanica ,1/. Braun. 



