Sec t. 2. Polysiphonicce. 
. ' i . 
Composite tubulosae. Globuli extrafoliacei, hypogyni. 
A. Heterosiphonicae. Caulis composite tubulosus, corticatus, sulcato- 
striatus. Ramenta simpliciter tubulosa, laevia, flexilia. 
1. caule substrigoso. 
f Monoicae. 
a. involucri aculeis diametrum caulis subaequalibus. 
10 Ch. scoparia. Bauer. 
b. involucri aculeis diametro multoties longioribus. 
11 Gh. Hornemanni Wallm. 
ff Dioicae. 
* 12 Gh. Preissii Al. Br. 
2. cauli inermi. 
13 Ch. Hydropithys. Reichenb. 
14 Ch. fibrosa. Ag* 
B. Polysiphonicae propriae. Caulis internodiumque ramentorum unum 
alterumve composite tubulosa, corticata, sulcato-striata. 
1. Strigosae. 
Caulis saltim superne aculeatus vel papillosus. 
f Monoicae. 
Gymnopodeae Al. Br. internodio basali simpliciter tubuloso. 
15 Ch. brachypus. Al. Br. 
16 Ch. Martensi. Al. Br. 
17 Ch. ceylanica. Willd. 
18 Ch. nudipes. Wallm. 
* 19 Ch. foliolosa. Muehlenb. 
20 Ch. polyphylla. Al. Br. 
* Ch. Michauxii. Al. Br. 
21 Ch. Wikströmi. Wallm. 
22 Ch. Commersoni. Al. Br. 
* 23 Ch. compressa. Kunth. 
Cinerascentes. Exsiccatae cinerascentes, vel cretacei coloris, colla- 
bentes. 
24 Cb. squamosa. Desf. 
25 Ch. gymnophylla. Al. Br. 
Ch. vulgaris. 
26 Ch. foetida. Al. Br. 
Ch. crassicaulis * Schleich. 
Ch. longibracteata * Kürz. 
Ch. cespitosa * Wallm. 
Ch. sphagnoides. Wallm. 
* Ch. gymnoclada. Ganter. 
27 Ch. contraria. Al. Br. 
* 28 Ch. Kirghisorum. Less. 
* 29 Ch. Kokeilii. Al. Br. 
Ch. hispida. 
30 Ch. hispida * Smith. 
ß. gymnotiles. Al. Br. 
