Gymnogongrus.'] 
IX. ALGA?. 
697 
containing aggregate clusters of spores. Tetraspores developed from cells 
contained in tliick-walled warts. , 
Natives of both temperate zones. 
1. G. furcellatus, J. Ag. Sp. Alg. ii. 313 ; — FI. N. Z. ii. 250. Frond 
tufted, 2-6 in. high, very variable, piano-compressed, dichotomously fastigiate, 
often secundly proliferous ; segments narrow-linear, very variable. Concep- 
tacles often in opposite pairs. — Sphcerococcus, Agardh. Gracilaria furcata 
and torulosa, Hook. f. and Harv. in Lond. Journ. Bot. iv. 545, and vii. 444. 
Common on the coasts, as far south as Otago. (Chili, Peru.) 
2. G. vermicularis, J. Ag. Sp. Alg. ii. 323 ; — FI. N. Z. ii. 250. 
Frond 2-4 in. long, tufted, purplish, subcompressed, almost terete, -^-“To in- 
broad, dichotomously fastigiate, often secundly or fasciculately proliferous ; 
terminal segments obtuse. Conceptacles crowded, rarely solitary, giving the 
frond a nodose appearance. — Chondrus, Grev. ; Fucus, Turn. Hist. t. 221. 
Milford Haven, Lyall. (S. Africa, Chili.) ' 
76. CALLOPHYLLIS, Kuetzing* 
Frond red, flat, rather broad, between membranous and fleshy, dicho- 
tomously and flabellately branched ; structure of 2 strata of cells ; medullary 
of large rounded cavities separated by a network of minute cells ; cortical of 
vertical series of minute coloured cells. Conceptacles superficial or im- 
mersed, often marginal, thick walled, containing masses of spores. Tetra- 
spores cruciate, dispersed through the cortical layer. 
A handsome southern genus of numerous species. 
1. C. variegata, Kuetzing ; — FI. N. Z. ii. 250. Frond purple-red, 
membranous, 6 in. long, decompoundly pinnate ; pinnae close-set, lower 
simple, linear, upper decompound, dilated, terminal obtuse, doubly-crenate. 
Conceptacles marginal, immersed. — J. Ag. Sp. Alg. ii. 302. Rhodyvtenia, 
Mont. ; FI. Antarct. 475. Sphcerococcus, Bory, Yoy. Coquil. t. 14. 
Tauranga, Davies. JUord Auckland's group, D’ Urville. (Chili, Fuegia.) 
2. C. Hombroniana, Kuetzing ; — FI. N. Z. ii. 251. Frond 1-2 ft. 
long, bright red-purple, decompoundly pinnate, and subflabellately dichoto- 
mous from a flattened stipes ; pinnae erecto-patent, lower simple, linear, upper 
decompoundly dilated with the margins fimbriate, terminal obtuse, toothed. 
Conceptacles immersed in the fimbriae. — J. Agardh, Sp. Alg. ii. 303. Rhody- 
menia, Mont, in Voy. au Pole Sud, 156. t. 1. f. 2 ; FI. Antarct. i. 188. t. 
72. f. 2. 
East coast, Colenso ; Akaroa, Raoul; Foveaux Straits, Lyall; Otago, Lindsay. Iiord 
Auckland’s group, Hombron. 
3. C. acanthocarpa, Harv. in FI. N. Z. ii. 251. Very similar to 
C. Hombroniana, but the conceptacles are aculeate. 
East coast and Port Cooper, Colenso , Lyall. 
4. C. coccinea, Harv. ; — FI. N. Z ii. 250. Frond membranous, deli- 
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