Callithamnion.] 
IX. ALG.E. 
713 
spongy network of anastomosing fibres and grumous fluid. Fructification 
unknown. 
A fine genus, most abundant in tropical seas ; the species are often much branched, like 
Pine-branches, or pinnate, like Mosses. 
1. C. sedoides, Agardh ; — FI. N. Z. ii. 261. Ehizome slender, gla- 
brous, matted, glossy, several in. long, in. diameter. Fronds crowded, 
2-6 in. high, linear, clothed throughout their length with short, pyriform, 
loosely imbricate, more or less distichous, opposite sacs, ^—5- in. long. — 
Harv. Ner. Austr. ii. t. 72. Cliauvinia, Kuetzing. Ahnfeldtia, Trev. 
Rocks near low- water mark, Colenso ; Cook’s Straits, Lyall. (Australia, Mauritius, In- 
dian Ocean.) 
2. C. hypnoides, Agardh; — FI. N. Z. ii. 260. Ehizome robust, ■b~i 
in. diameter, covered with cylindric, dichotomous scales. Frond bright green, 
erect, stalked, lanceolate, 8-12 in. high, pinnace; stipes, rachis, and pinna 
densely clothed with very short, forked, subulate branchlets ; pinnae disti- 
chous, simple or forked, 1-2 in. long, close-set, patent. — Harv. Ner. Austr. 
ii. t. 84. Cliauvinia, Kuetzing. 
Deep tide-pools, East coast, Colenso. (Australia, Tasmania.) 
3. C. Brownii, Fndlicher ; — FI. N. Z. ii. 260. t. 121 A. Ehizome 
stout, clothed with cylindric scales. Frond green, erect, 10-12 in. high, 
slender, branched, clothed throughout with erecto-patent, 4-fariously, loosely 
imbricate, curved, cylindrical, slender, simple, acute, mucronulate or obtuse 
processes A- in. long. 
East coast, Colenso ; Chalky and Lyall’s Bay, Lyall. (Tasmauia and Australia.) 
4. C. furcifolia. Hook. f. and Harv. FI. N. Z. ii. 260. t. 121 B. Ehi- 
zome as in C. Brownii. Frond slender, 4-6 in. high, clothed throughout 
with suberect, 4-fariously imbricate, curved, forked (rarely simple), cylindrical, 
slender, acute processes. — C. Selago, Hook. f. and Harv. in Lond. Joum. Bot. 
iv. 550, not of Agardh. 
East coast, Colenso. (Tasmania.) 
5. C. articulata, Harv. in FI. N. Z. ii. 261. Ehizome unknown. 
Branches slender, filiform, 4-5 in. long, bright green, simple or forked, con- 
stricted at intervals of A-L— in., clothed throughout with distichous branch- 
lets, which are opposite, attached to the middle of each internode, \ in. long, 
cylindric, obtuse, constricted at the base. 
East coast, rare, Colenso. 
98. CODIUM, Stackhouse. 
Frond dark green, sponge-like, consisting of a matted mass of 1-celled 
branching tubuli, filled with semifluid endoohrome. Fructification of lateral 
vesicles on the branchlets at the circumference, containing myriads of anthe- 
rozoids. 
vol. 1 . 3 a 
