220 CRYPTOGAMIA ALG^l. 



164. SCHIZONEMA. Filaments free, continuous, composed of 

 other smaller filaments longitudinally united, and contain- 

 ing elliptical granules. 



********* Green, rarely coloured, gelatinous, subylobular, 

 internally fitted with filaments simple or branched, jointed or conti- 

 nuous. 



165. CHJETOPHORA. Fronds gelatinous, globose or branched; 



the filaments jointed, branched, terminated with pellucid 

 ciliae. 



166. LINCKIA. Frond gelatinous, subglobose, blackish-green ; the 



filaments slender, continuous, radiating from a base. 



167. NOSTOC. Frond gelatinous, subglobose, plicate; the fila- 



ments moniliform, simple. 



168. COCCOCHLORIS. Frond gelatinous, globose or undefined, 



filled with round or elliptical granules. 



Anomalous. 



169. OSCILLATORIA. Filaments simple, very slender and hya- 



line, marked with transverse septae, and immersed in a 

 gelatinous fluid. 



170. GOMPHONEMA. Hyaline geminate cuneiform corpuscula 



produced at the extremity of flexible branched filaments. 



171. ECHINELLA. Hyaline rigid, sublinear corpuscula, often 



united in a wedge-like form, free. 



123. LICHINA. 



1. L. pygmcea, frond compressed, somewhat palmate above; 

 capsules globose ; about half an inch high HOOK. Scot, ii. 96. 

 GREV. Crypt. Fl. t. 219. Alg. Brit. 22. Fucus pygm^us*, LIGHTT. 

 Scot. 964. t. 32. WITH. iv. 109. 



