218 CRYPTOGAMIA 



148. ECTOCARPUS. Much branched, the filaments jointed, solid, 

 fuscous ; fructification lanceolate pods or ovate capsules, 

 solitary or racemose. 



****** Dark green, capillary, solid and continuous, branched. 

 Fluviatile. 



149. LEMANEA. Filaments straight, rigid, somewhat branched, 

 knotted, the knots containing very minute moniliform 

 tufted filaments. 



Purple or olivaceous, not changing in drying, cylindrical 

 or filiform, fistular. Marine. 



150. DICTTOSIPHON. Frond filiform, tubular, continuous, 



branched; root minutely scutate, naked; fructification 

 ovate scattered seeds lying beneath the epidermis. 



151. Du MONT i A. Frond cylindrical, simple or branched, mem- 



branaceous, tubular, gelatinous within, of a red or pur- 

 plish-red colour; fructification globules of seeds attached 

 to the inner surface of the membrane of the frond. 



152. CHORDA. Frond simple, filiform, cylindrical, with an in- 



terrupted cavity ; root naked, scutate ; fructification ex- 

 ternal continuous masses of pear-shaped seeds fixed by 

 their base. 



153. ASPEROCOCCUS. Frond tubular, cylindrical, continuous, 



membranaceous ; root minutely scutate, naked; fructifi- 

 cation distinct spots composed of imbedded seeds mixed 

 with erect club-shaped filaments. 



******** Green, olive-green or purple, thin, membranous, plane 

 or fistular, stemless. 



154. PUNCTARIA. Frond simple, membranaceous, flat, with a 

 naked scutate root ; fructification scattered over the whole 

 frond in minute distinct spots, composed of roundish pro- 

 minent seeds intermixed with club-shaped filaments. 



156, ZONARIA. Frond appressed, plane, subcircular, coriaceous ; 



