350 The Gardens of the Sun. 



quite bears out the idea that we previously entertained, that 

 the fern-flora of the island is very rich, and that there is 

 still a plentiful harvest to await the exploration of the interior. 

 The added species which are not new are nearly all already known 

 in Java and the Philippine Islands, frequently in both. 



REPORT ON" BURBIDGE'S FERNS OF THE SULU 

 ARCHIPELAGO. 



By J. G. Baker, F.R.S., F.L.S. 



The Sulu Archipelago is a group of small islands lying 

 between Borneo and the Philippines. They are for the most 

 part under cultivation ; but there are two mountains which 

 attain an elevation of between two thousand and three thou- 

 sand feet. So far as I am aware their botany is entirely 

 unknown. The following is a full catalogue of the ferns which 

 Mr. Burbidge gathered in the group : — 



38.* Cyathea suluensis, Baker, n. sp. — Allied to C. Integra, 

 J. Sra., of the Philippine Islands and Amboyna. 



Hymenophyllum dilatatum, Sw., var. H. formosum, Brack. 



Trichomanesjavanicvm, Blume. 



Trichomanes maximum, Blume. 



Trichomanes rigid urn, Sw. 



Davallia pirmata, Cav., and its variety luzonica. 



Pteris quadriaurita, Betz. 



4.* Pteris Treacheariana, Baker, n. sp.— Near P. cretica, but 

 much more slender and delicate in general aspect, with the lowest 

 one to three pairs of pinna) two to three forked. Named at the 

 request of Mr. Burbidge in compliment to the Honourable W. II. 

 Treacher, Acting Governor of Labuan, whose kindness and help 

 contributed materially to the success of his expedition. 



Lvndsaya cultrata, Sw. 



Lindsaya pectinata, Blume. 



Lindsaya flabellulata, Dryand. 



