6fi0 
IX. ALGJE. 
\Chordaria. 
slender articulate filaments, which are thrown off as the peripheric cells are 
developed. Spores small, ellipsoid. — Myriocladia Capensis, J. Ag. Sp. Alg. 
i. 54. 
On rocks, probably common. Cook’s Straits, Lya.ll; East coast, Colenso ; Otago, Lind- 
say. (E. and W., tropical, and S. Africa, S. America.) 
2. C. flagelliformis, Agardh ; — FI. Antarct. i. 180. Frond 1-2 ft. 
long, as thick as a crowquill, filiform, equal throughout, excessively branched; 
branches dense, elongate, simple or forked, scarcely attenuate, often a foot 
long ; filaments of the periphery clavate. — J. Ag. Sp. Alg. i. 66 ; Harv. Phyc. 
Brit. t. iii. ; Turn. Hist. Fuc. t. 85. 
Campbell’s Island, J. D. H. (Chili, S. Africa, N. Atlantic and N. Pacific Oceans.) 
28. MESOGIiOIA, Agardh. 
Frond olive-green or brown, filiform, much branched, gelatinous ; axis of 
longitudinal subsimple interlaced fibres, immersed in gelatine ; periphery of 
radiating dichotomous coloured filaments. Spores ovate or elliptic, olivaceous, 
attached to the branches of the peripheric filaments. 
Medium-sized flaccid Alga, natives of both temperate zones. 
1. M. intestinalis, Harvey in FI. H. Z. ii. 220. Frond 1-2 ft. long, 
or more, soft, clothed with villous filaments, simple or sparingly divided, T \- 
in. at the base, gradually widening to % in., then elongate and cylindric ; 
branches few, irregularly inserted, obtuse; axial filaments loose, branched, 
peripheric fascicled, cylindric, not moniliform, -widening upwards, outer 
joints as long as broad. Spores oblong, 2 or more in each fascicle. 
Cook’s Straits, Auckland, and Otago, Lyall, Lindsay. 
29. LEATHESIA, Gray. 
Frond olive-green, solid, forming globose or lobed masses, between fleshy 
and cartilaginous in texture, formed of jointed colourless dichotomous fila- 
ments radiating from the points of attachment, the tips closely packed and 
coloured forming the surface. Spores pyriform or ovoid, attached to the 
coloured tips of the filaments. 
A small genus of annual Alga, natives of both temperate zones. — Corynophloea, Kuetzing. 
1. L. Berkeley!, Harvey, Phyc. Brit. t. 176; — FI. N. Z. ii. 220. 
Frond dark brown, gregarious, convex, depressed, solid, 1-2 in. diameter, 
soft and fleshy ; filaments very densely packed. Spores pyriform. — J. Ag. 
Sp. Alg. i. 51. 
Cape Kidnapper, Colenso. (Europe.) 
30. SPHACELARIA, Lyngbye. 
Frond olive-green, rigid, filiform, excessively and often fastigiately branched, 
jointed throughout ; branches distichous, pinnate, rarely dichotomous ; joints 
of numerous longitudinal cells ; tips of the branches distended, membranous, 
