ET INSULARUM MARIS PACIFICI. 295 



cata ; verticillorum foliis 6, articulis 4-5, elongatis, ultimo mu- 

 croniformi angusto et acutissimo ; stipulis ad basin verticilli in- 

 conspicuuis ; foliolis ad genicula foliorum minimis acutissimis erectis ; 

 antheridiis et seminibus in geniculis foliorum solitariis et insuper in 

 fundo verticilli aggregatis ; serninum fasciis 7 . 



Ch. corallina, Klein ap. Willd. in Jet. Acad. Berol. 1801-2. ^>. 61. t. 2./. 2 {icon 

 pessima) et Sp. pi. 4. 186. 



Ch. Roxburghii, A. Br. in Regensb. bot. Zeit. 1835. p. 59. 

 Nitella corallina, Ag. Syst. Alg. p. 123. 



Willdenow gives Malabar as its native country, but on the paper of 

 Klein, in Willdenow's herbary, is written " Frankenb. 1799," which 

 signifies doubtless Tranquebar on the coast of Coromandel. In Sir W. 

 Hooker's herbarium are spécimens from Madras {Dr. Wight, No. 137). 

 In the herbaria of Desfontaines, Agardh, and others, I bave seen 

 spécimens distributed by Hornemann under the name of Ch. furcata, 

 Roxb., without indication of the locality. 



A very remarkable species, peculiar to the East Indies, in size resem- 

 bling Nitella translucens, somewhat thinner than the nearest related 

 Ch. australis. It is without annular incrustation, as is seen some- 

 times in Nitella syncarpa. The name refers to the coral-red colour 

 of the antheridia, and perhaps also the unripe seeds : the ripe seeds, 

 however, hâve a black nut without calcareous covering, and are con- 

 siderably larger than in the following species. 



6. Ch. coronata, monoica, debilior, flexilis et pellucida, omnino ecorti- 

 cata ; verticillorum foliis 8-10, articulis 4-6, ultimo mucroniformi ; 

 stipulis numéro foliorum iisque oppositis, coronam ad basin verticilli 

 simplicem conspicuam formantibus ; foliolis in omnibus foliorum 

 geniculis verticillatis, iis geniculi ultimi apicem folii una cum mu- 

 crone terminali coronantibus ; anterioribus longioribus semina subse- 

 quantibus vel superantibus, posterioribus brevioribus vel omnino 

 depauperatis ; seminibus in geniculis foliorum solitariis vel rarius 

 geminatis, in fundo verticilli nullis. 



Ch. coronata (Ziz. ined.) A. Br. in Regensb. bot. Zeit. 1835.^?. 59. 



a. Coromandelina, major ; foliis verticillorum circiter 10, articulis 5 



(elongatis 4) ; stipulis et foliolis inflatis acuminatis, longitudine 



serninum ; seminibus solitariis ovatis majoribus, coronula brevi pa- 



pillis obtusis, fasciis 8. 



/3. orientalis, minor ; foliis verticillorum circiter 8, articulis 4 (elongatis 



