328 FLORiDEyE (Barton). [Peyssonelia 
2. P. Harveyana On. in J. Ag. Sp. Alg. vol. ii. pt. 2, p. 501. 
Luanda. — Morro das Lagostas ; July 1854. No. 122. 
St. Vincent, Cape de Verde.— Praia de Gale ; 22 Aug. 1853. 
No. 236. 
18. GRATELOUPIA Ag. Spec. Alg. i. 221. 
1. G. lanceola J. Ag. Sp. Alg. vol. ii. pt. i. p. 182. 
Loanda. — Fronds gregarious, chiefly covering the sides of rocks and 
stones ; fertile plants always much branched, when sterile smaller. 
Colour when alive a dark steely purple Hab. on the Angola shores 
near Morro das Lagostas, rare, on rocks ; July 1854. No. 120. 
19. MELOBESIA Lam. Hist. Polyp. Flex. 313. 
1. M. corticiformis Kiitz. Sp. Alg. p. 696. 
St. Vincent, Cape de Verde. — On the fronds of Gelidium rigidum 
on the shore ; Aug. 1853. No. 251. 
20. CORALLINA Lam. Polyp, fl. p. 275. 
1. C. officinalis Lam. Fauna Suec. n. 2234. 
Madeira. — Praia de Camara dos Lobos ; Aug. 1853. No. 268. 
A certain number of the algse collected by Dr. Welwitsch are 
not sufficiently well preserved to be named specifically, and are 
therefore not given here. Among these are species of Cyanophycece, 
Cladophora, Sargassum, Dictyota, Oorallinecb, Gracilaria, Poly- 
siphonia, and Nitophyllum. 
