326 floride;E (Barton). [Caulacanthus 
2. CAULACANTHUS Kiitz. Phyc. Gen. 395. 
1. C. ustulatus Kiitz. I.e. 
Mossamedes. — Very frequent on calcareous rocks of the sea near 
Mossamedes ; July 185'J. No. 76. Frequent on calcareous and sand- 
stone submarine rocks near Mossamedes ; July 1869. No. 77- 
St. Vincent, Cape de Verde. — On the shore, Praia de Gale : Aug. 
1853. No. 230- 
3. GELIDIUM Lam. in Ann.Mus. Hist. Nat. Paris, xx. 1813, 128. 
1. G. corneum Lam. I.e. 
Benguella. — On Patelke thrown up by the Atlantic near Benguella ; 
June 1859. No. 75. 
Loanda. — On rocks near S. Pedro, frequently covering all the rocks : 
July 1854. No. 50. 
4. GIGARTINALarn. in Ann. Mus. Hist. Nat. Paris, xx. 1813, 134. 
1. G. Teedii J. Ag. I.e. 
Luanda. — Morro das Lagostas, rare ; July 1854. No. 117- 
5. FLAHAULTIA Born. Alg. Schousb. 278. 
1. F palmata. Barton in Journ. Bot. 1897. 
Loanda. — Frequent near Morro das Lagostas ; Jan. 1854. No. 65- 
Angola, Fort Conceicao ; July 1854. Nos. 78, 80. On shells and 
rocks near Morro das Lagostas, frequent ; Jan. 1854. No. 99. 
6. GRACILARIA Grev. Alg. Brit. 121. 
1 G. confervoides Grev., I.e., p. 123. 
Loanda. — Thrown up on the island, rare ; Jan. 1854. No. 95. 
7. HYPNEALam.in Ann. Mus. Hist. Nat. Paris, xx. 131, 1813. 
1. H. musciformis Lam., I.e. 
Loanda. — When living, mostly pale brown and fragile ; when thrown 
up and exposed to the air it becomes flaccid and of a red, purple, and 
orange colour, variegated. Fruit occurs rarely. Frequent and of 
various forms on rocks, shells and other algas on the shores of Loanda, 
where large quantities are thrown up. On coralline rocks near S. 
Pedro ; July 1854. No. 84. 
St. Vincent, Cape de Verde. — On volcanic rocks and on other 
algae on the shore, frequent. Praia de Gale ; Aug. 1853. No. 250 
8. RHODYMENIA J. Ag. Alg. Liebm. 15. 
1. R. palmetta Grev. Alg. Brit, p. 88. 
Loanda. — On rocks at Morro das Lagostas ; Jan. 1854. No. 115- 
9. CHRYSYMENIA J. Ag. Alg. Med. et Adriat. 105. 
1. C. uvaria J. Ag., I.e., p. 106. 
St Vincent, Cape de Verde. — On the shores. When alive, rose- 
purple, wine-colour ; Aug. 1853. No. 240. 
10. PLOCAMIUM Lam. Ann. Mus. Hist. Nat. Paris, xx. 
137, 1813. 
1. P. coccineum Lyngbye, Tent. Hydrophyt. Dan. p. 39. 
St. Vincent, Cape de Verde. — On volcanic rocks near Praia de 
Gale ; 21 Aug. 1853. No. 241. 
