(55) 



bent dc bonne heure, et les Charm foelidce presenlent parfois des formes 

 denudees ; mais en comparant plusieursechantillons de la meme espece, 

 on parvient ordinairement a lover tons les doutes , relativemenl a la 

 presence de ces appendices. 



f Monoicce. 



Ser. Gymno])odece [AL Braun). Transatlanticte. 



Inlernodium basalc ramcntorum ecorticatum, pelluciduiu, cetera ad apicem 

 corticata, vel alternatim simpliciter ct composite tubulosa. Verticilli multira- 

 diati. 



17 Cli. Ilydropytls : subflcxilis, subdiaphana ; caule corlicato, tenui, 



aculeis raris conicis, parum elongatis obsito, subtiliter striate, striis 

 rectis ; involucri spinalis duplici radiorum numero, uniscrialibus, pa- 

 tulis, acicularibus, cuspidatis, diametro caulls parum longioribus ; ver- 

 tlcillis distantibus, 10 — 12-radiatis, erecto-patentibus aut divaricatis; 

 radiis caulls latitudinem subfEquantibiis, 5 — 7-articulalis, usque ad api- 

 cem bracteiferis, nitidulis, ad genicula constrictis ; internodio basali 

 ecorticato, nudo, proximo longitudine tequali aut breviore, ceteris 

 passim cortlcatis, termlnall breviore, attenuate ; bracteis verticillatis, 

 subsequalibus, nucula fere duplo longioribus, cuspidatis ; nucula oblon- 

 go-ovali, perminuta , \\ — 13-striata, solitaria , nuclco atro ; coroiiula 

 brevi, obtusa. Monoica. 



Cli. Ilydropytis Reichcnb. ap. Mwssl. 

 Amerique duSud, Cayenne ! Richard. — Indes orienlales, Braun I 



18 Cli. niKllpcs : caule tenuiter striato, aculeis sparsis, diametro caulis 



pauilo brevioribus obsito; involucri spinulis acicnlaribus, diametro cau- 

 lis longioribus, numerosis; verticillis 8 — lO-radiatis, fructiferis divarica- 

 tis; internodio ramenti basali ceteris 2 — 3-plo longiore, monosiphonico, 

 ecorticato, reliquis inordinate alternatim composite ct {p. 294) simpli- 

 citer tubulosis ; bracteis numerosis, 6 — 8, verticillatis, subtcqualibus, 

 validis, cylindricis, nucula subrotundo-ovata 3 — i-plo longioribus. 

 Monoica. 



Cli. nudipes niilii, in Herb. Mus. Reg. Ilolmiens. 



Amerique du Nord ! Milhlenb. 



Jaunatre. Ressemble un peu par son habilus au Chara fibrosa. 



* 19 Cli. follosa : caule supernc papilloso; involucri spinulis cylindricis; 

 ramentis bracteiferis; bracteis 4, nucula obovalo-globosa, 9 — 10-striata, 

 brevioribus. Monoica ? 



Ch. foliosa mild. Act. Bcrolinens. — I'crs. — Bnizcl. — Ag. System. 



