294 CHAUACE,E INDICE ORIENTALIS 



plants. It possesses an articulated stem, with whorls, each of ten 

 leaves, wliich are very narrowly spathulate, in the upper part deeply 

 pinnatifid with three pairs of linear segments, of which the inferior ones 

 are the longer, and sometimes once more divided in the outside. As 

 there are no flowers I am unable to corne to a more accurate détermi- 

 nation of this plant. In several other collections I hâve found, under 

 the name of Ch. furcata, spécimens of Ch. corallina, distribnted by 

 Hornemann. 



3. N. (exilis var. ?) flagelliformis, monoica ; tenuis, flexilis et pellucida ; 

 verticillis omnibus Iaxis e foliis 5-6 duplicato- vel in radiis nonnullis 

 triplicato-divisis, articulo primario valde elongato, segmentis divisi- 

 on um insequentium sensim brevioribus, ultimis mucrone imposito 

 angusto acuto apiculatis ; seminibus solitariis oblongis, coronula 

 brevi, nucleo acutangulo, fasciis 9-8. 



I hâve seen of this species only some fragments adhering accidentally 

 to Chara corallina, communicated by Hornemann under the name of 

 Ch. furcata. It resembles most nearly N. gracilis (Ch. gracilis, Smith) 

 and N. exilis (Ch. exilis, Amici, Ch. flabellata, Reichenb.), according 

 with the latter in the size of the seeds, but diftering somewhat by the 

 greater elongation of the first joint of the leaves, and by seeds with 

 still sharper angles on the nut. Length of the nut 3 -^% 1 m. 



4. N. byssoides, monoica, minima, flexilis et pellucida, dense et intri- 

 catim cœspitosa ; verticillis densioribus e foliis 6 breviusculis, medio 

 divisis, uno alterove radio iterum diviso, segmentis ultimis mucrone 

 imposito minutissimo acuto apiculatis ; seminibus solitariis subglo- 

 bosis, coronula brevi obtusa nuclei gyris non prominulis, fasciis 6-7. 



On the coast of Coromandel, collected by Bellanger (1826-28). 



This species requires future researches to ascertain whether it must 

 be left as such, or united with N. tenuissima, as the smallest variety of 

 it. It differs, however, by its exceedingly minute size, its leaves only 

 twice divided, its whorls less compact, and still smaller seeds. The 

 yellow-brown nut of the seed is only 3^- m. long. 



Genus II. CHAKA. 

 Subgenus B. Chara. 



a, Chara haplostephanœ. 

 a, ecorticatce. 



5. Ch. corallina, monoica, validior, flexilis et pellucida, omnino ecorti- 



