Algeria^ Madeira, Canaries, Azores. 7 



S avallla. 



D, Canariensis, Smith. Hab. : Madeira ; one of the most common 

 ferns ; as also in the Canaries. $. 

 Cystopteris. 



0. fragilis, Bernh. Hab. : Madeira ; very abundant on wet and 

 shaded rocks and banks, from yeiy near the level of the sea (on 

 the north coast) to 3,000 feet and upwards in the laurel forests. 

 In the Canaries, in the wood of Agua Mansa, above Orotava, abun- 

 dant and fine. In Azores, at Fayal, Flores, and Pico. In Al- 

 geria. 

 Adiantum. 



A. reniforme, Linn. Hab : Madeira ; under the shade of over- 

 hanging rocks, and on rocks constantly wet with the spray of 

 waterfalls and torrents ; plentiful in many of the ravines of the 

 north side of the island, mostly at a low or moderate level. At 

 Ribeiro Frio (though very sparingly), and on the precipice imme- 

 diately below Pico Grande, at an elevation probably exceeding 

 4,000 feet. Very local on the southern side, though plentiful in 

 some particular ravines, especially in that of Santa Luzia. Also 

 in the Canaries. 



A. Capillus-veneris, Limi. Hab. : very common on both sides 

 of Madeira, chiefly in the coast region, but ascending to nearly 

 2,600 feet in the Santa Luzia ravine. Particularly fine and luxu- 

 riant in some of the wet ravines of the north coast. In the Canaries 

 and Azores. In Algeria and Barbary States. 

 Cbellantbes. 



C. fragrans, Wehh ^ Berth. (C. odora, Sio.). Hab. : Madeira ; 

 on old walls at Funohal, sparingly ; sometimes in company with 

 Nothochlfena lanuginosa. Canaries and Algeria. 



C. pulohella, Boty. Hab. ; Canaries ; grows in rather arid, rocky 

 spots, in the wild country (overspread with obsidian) between Icod 

 de los Vinos and the village of La Guancha. $. 



C. Szovitzii, Fisch et May. Hab. ; Algeria. Kuhn. 



Pteris. 



Pt. longifolia, Linn. Hab. : Canaries ; rare and very local ; on the 

 margin of a rivulet that crosses the road between Garachico and 

 Icod de los Viiios in Teneriffe, at Tazacorte in Palma. In Algeria. 



Pt. arguta,, Aiton. Hab. . Madeira. In the wet shady ravines, 

 very common on the north side of the island, down nearly to the 

 sea-level ; extremely abundant and fine at Eibeiro Frio (3,000 feet) 

 and in the woods at the head of the Serra d'Agoa valley. On the 

 south side : in great plenty and luxuriance in the Santa Luzia 

 ravine, in a dwarf state on rocks in the Little Curral. Canaries, in 

 the wood of Agua Manza above Orotova, iu Teneriffe. Azores, 

 Faval, Flores, and Pico. 



Pt. Aquiljna, Linn. Hab. . Madeira, very common on the island ; 

 Canaries, Azores, and Algeria. 



Iiomarla. 



L. Spioant, Besv. (Blechnum boreale, Sio.). Hab. : Madeira. 

 Common in the mountain woods on both sides of the island, also on 

 shady banks in lanes ; more common, and descending to a lower 

 level, on the north side. Canaries, Azores, Fayal, Flores, Pico. 



