Chondrie^E.'] chylocladia. 273 



tiidinal filaments ; peripliery composed of small polygonal cells. 

 Fructification of two kinds, on distinct individuals : 1, spherical, 

 ovate, or conical capsules (ceramidia), containing a tuft of wedge- 

 shaped spores on a central placenta; 2, tripartite tetraspores 

 immersed in the swollen branches near the apices. — Name from 

 Greek words signifying juice and hrancli. — Harvey. 



1. Chylocladia oyalts, Hooker. (Plate YIII. fig. 31.) 

 Hab. On rocks and stones within tide-marks. Animal. 



Spring and summer. Frequent on the English and Irish 

 shores. Eare in Scotland. Little Isles of Jura, Lightfoot ; 

 Lieut. Thomas and Dr. M^Bain, Papa Westra ; we have it 

 from Miss White, Jersey. 



2. Chylocladia kaliformis. Hooker. (Plate XY. fig. 57, 

 a portion of the frond.) 



Hab. In the sea on rocks and on Algse, generally in deep 

 water, but occasionally in shallow water at mid-tide mark. 

 Annual. June to September. It is frequent in England 

 and Ireland, and not rare in Scotland, and is much more 

 common in Arran than on the Ayrshire coast. 



It is a handsome plant when dried, though when fresh 

 from the sea it has a clumsy appearance, as in general it is 

 in a bunch of a dozen branches, nearly a foot in length, 

 subgelatinous, and filled with watery juice; when fresh 



T 



