456 Observations on Ferns 



stantly in motion, and give them a most elegant and graceful 

 appearance. 



In enumerating the ferns that I brought to England, I have 

 quoted the best figure of each species that I have been able 

 to compare them with ; and by the very excellent plates in 

 the works of Sloane, Plumier, and the 'Icones Fincum' of 

 Hooker and Greville, I have been enabled to determine ma- 

 ny of my specimens. 



GLEICHENEJE, R. Br. 



Gleichenia, Sm. 



G. immersa, Kaul. ; Icon. PEL t. 15; Kaul. Enum. p. 38. — 

 (Mertensia). 



This species of Gleichenia has a straggling growth, supporting itself 

 among the surrounding bushes, and sometimes attaining a length of 15 

 or 20 feet. 



Woodsides ; Mayday mountains, Jamaica. 



OSMUNDACEM, R. Br. 



Aneimia, Sw. 



A. adiantifolia, Sw. ; Icon. Fil. t. 16; Willd. Sp. PI. vol. v. 

 p. 94. 



This graceful fern varies much in size : I have specimens from an 

 inch in height to 18 inches. The segments of the frond also vary con- 

 siderably in their configuration. 



Growing in great abundance on a bank near Warwick plantation, 

 Manchester, Jamaica. 



POLYPODIACEJE, R. Br. 



POLYBOTRYA, Humb. 



1. P. cervina, Kaul. ; Icon- Fil. t. 81 ; Kaul. Enum. p. 55. 



I only found the variety with narrow fronds, (/3, var. lanceolata. H. 

 and G.), in Jamaica. It is very common, growing in large patches in 

 the woods of the Mayday mountains, but not often producing fertile 

 fronds. I have fine specimens of this fern with broad fronds, from Tri- 

 nidad. 



2. P. cylindrica, Kaul. Enum. p. 56. 



This is a scandent fern, growing to the height of 20 feet up the trunks 

 of trees, and is rather common. My specimens agree with Kaulfuss' 

 description, but he makes no mention of its being scandent. There is 

 no figure of it, that I am aware of. 



Mayday Mountains. . 



