REPORT ON THE EOTANY OF THE ATLANTIC ISLANDS. 39 



Widely spread in Africa and America, and common to a larger number of the Atlantic 

 aud Southern Islands treated of in this work than any other plant, being found in Ascen- 

 sion, St Helena, Tristan da Cunha group, Marion, St Paul, and Amsterdam Islands. 



Fuller synonymy will be found in the following enumeration of the plants of St Helena. 



FILICES. 



POLYPODIES. 



Pteris incisa, Thunb. 



Pteris incisa, Thunb., Prodr. El. Cap., p. 733 ; Swartz, Synop. Fil., p. 99 ; Hook., Sp. Fil., ii. p. 230; 



Hook, and Eak., Synop. Fil, p. 172 ; Kuhn, Fil Afr., p. 82. 

 Pteris lessonii, Bory in Duperr. Voy. "Coquille," Bot. Crypt, p. 276. 

 Pteris vespertilionis, Labill., Fl. Nov. Holl., ii. p. 96, t. 245. 

 Litobrochia incisa, Presl, Tent. Pteridogr., p. 149. 



Ascension. — Indigenous. Covering many acres on the weather side of the Green 

 Mountain at 1200 to 1800 feet — Hooker; without any remarks — Curror ; Seemann; 

 Moseley. 



Very widely diffused in the tropics, and extending into the south temperate regions, 

 including Tristan da Cunha and New Zealand. Kuhn records it from St Helena, but we 

 have seen no specimens. 



Pteris flabellata, Thunb., var. ascensionis. 



Pteris flabeOata, Thunb., Prodr. FL Cap., p. 733; Hook, Sp. Fil, ii. p. 185; Hook, and Eak., 



Synop., p. 161, var. ascensionis. 

 Pteris ascensionis, Swartz, Synop. Fil., pp. 100 et 294 ; Bory in Duperr. Voy. " Coquille," Bot. Crypt., 



p. 276. 

 Lonchitis? adscensionis, Forst. in Comment. Soc. Gcett., ix. p. 72 (reprint, p. 62). 

 Pteris arguta, Ait., var. /3 minor, Mett. ex Kuhn, Fil. Afr., p. 77. 



Ascension. — Clefts of rocks and shaded places on the Green Mountain at 1200 to 

 1800 feet — Hooker; without locality — Curror; Moseley. 



The variety is apparently endemic in Ascension, while the species is common in St 

 Helena, and has a wide range in Africa, extending to Bourbon and Rodriguez. 



Blechnum australe, Linn. 



Blechnum aust rale, Linn., Mantissa, i. p. 130; Swartz, Synop. Fil., p. 114; Hook., Sp. Fil., p. 56; 

 Hook, and Eak., Synop. Fil., p. 186. 



Asce.nsion. — Indigenous % 



There is a specimen in Kew Herbarium from Ascension, presented by Mr Alex. Blake 

 in 1875, without any indication of locality, beyond Ascension, or other information. It 



