TREE-FERNS. 129 



Cyathea arborea. Smith, West Indies. 

 Cyathea canaliculata, Willd., Mauritius. 

 Cyathea excelsa, Sw., Mauritius. 

 Cyathea Serra, Willd., West Indies. 

 Cyathea sinuata, H. and G., Ceylon. 

 Hemitelia grandifolia, Spr., West Indies. 

 Hemitelia horrida, Br., West Indies. 

 Hemitelia Karsteniana, Kaulf., Venezuela. 

 Hemitelia speciosa^ Hk., Tropical America. 



As very few plates give much more than the 

 botanical characters of the species, no references 

 to figures are given for species of Tree-Ferns. 



Blechnum Brasiliense, illustrated in the frontisr 

 piece, is an excellent fern for a small house. Al- 

 though old plants form quite tall stems, it is rarely 

 seen more than six feet high. Lomaria gibba and 

 L. ciliata are very beautiful ferns. They form 

 small stems one to two feet high, and spread fif- 

 teen to thirty inches across the top. They are 

 likely to be attacked by thrips if kept in too warm 

 a place. 



