102 Geographical Handbook of Ferns. 



Pteris — continued. 



Pt. Mannii, Baker. Hab. : Fernando Po. $. 



Pt. Laurea, Desv. (Pt. triphylla, -Ag.). Hab. : Madagascar. $. 



Pt. Currori, Hook. Hab. : West Tropical Africa, at the Niger 

 River, near Elephant's Bay, and on the mountains of Fernando Po, 

 at 3-500 feet. $. 



Pt. spinulifera, Schum. (Pt. atrovirens, TF".). Hab. : Guinea 

 coast and Angola, Sierra Leone, Promontory Palmas, Fernando Po ; 

 Prince's Island; Kingdom of Oware ; Gulf Ambas, Eiver Bagroo, 

 Congo. Kiikii. 



Pt. Woodwardioides, Bory. Hab. : Bourbon and Mauritius. $. 



Pt. incisa, Thnnhg. Hab. : Bourbon and Mauritius, Ascension 

 Island, covering many acres of ground on the weather slopes of 

 Green Mountain, alt. 1,200 to 1,800 feet.—/. B. Hooker. Ca- 

 meroons. 



Pt. tripartita, Sim. Hab. : Bourbon, Mauritius, Madagascar, 

 Comoro Isles, Mayotte, Island Galega, Seychelles ; West Tropical 

 Africa; Fernando Po. 

 Ceratopterls. 



C. thalictroides, Brong. Hab. : tropical and subtropical regions, 

 in quiet waters ; Madagascar, turfy and marshy places ; Senegam- 

 bia, Guinea, Prince's Island. 

 Iiomarla. 



L. attenuata, Willd. Hab. : Bourbon, Mauritius, Madagascar, 

 Fernando Po. 



L. Boryana, IVilld. (L. Magellanica, Desv.'). Hab. : Bourbon, 

 Mauritius, Madagascar. Hook. Oard. Ferns, t. 52. 



Blecbnum. 



B. aiistrale, Linn. Hab. . Bourbon, Madagascar, Cape Verde 

 Islands. 



Asplenlum. 



A. Nidus, L. Hab. : Bourbon, Mauritius, Madagascar, Comoro 

 Isles, .Johanna Island, Seychelles, Galega Isle, Mombas. 



A. sinuatum, Beauv. Hab. : Guinea coast, southward to An- 

 gola ; Oware, Eiver Nun, Isle of St. Thomas ; Fernando Po, on oil 

 palms. $. 



A. Currori, Hook. Hab.: Guinea Coaat, Elephant Bay, River 

 Niger, Fernando Po. $. 



A. coriaceum. Baker. Hab. : Cameroon Mountains. $. 



A. Gautieri, Hook. Hab. : Island of Nossi-beh. $. 



A. variabile. Hook. Hab. : on trees in gloomy forests, Fernaudo 

 Po. ,^. fi y > 



A. altemans, Wall. Hab. : Abyssinia, near Aman Eski. 



A. vagans, Baker. Hab. -. Island of St. Thomas, West Tropical 

 Africa ; Madagascar. $. 



A. Sandersoni, Hook. Hab. : Zambesi Land, Johanna Island, 

 Madagascar, Bourbon, Mount Kilimandj aro, district of Dschao-ga, 

 5,500-7,800 feet. Kuhn. 



A. pygmeeum, Hook. Hab. : Madagascar. $. 



A. monanthemum, L. Hab. : Cape Verde Islands, Fernando 

 Po; Abyssinia, near Adesoula. 



A. subavenium. Hook. Hab. : Madagascar 



