IV PREFACE. 



Indian specimens presented to me in 1829 by the 

 late Dr. Wallicb, which led to my commencing a 

 Fern Herbarium, that first received a special addi- 

 tion in the form of a collection of Jamaica Ferns, 

 collected in that island by Mr. Robert Heward. 



In 1841 I purchased a set of the great collection 

 of Ferns made in the Philippine Islands by Mr. Hugh 

 Cuming ; of them I drew up a list, published in 

 Hooker's " Journal of Botany." I then wrote a 

 Memoir, entitled, "An Arrangement and Definition of 

 the Genera of Ferns," which was read before the 

 Linnsean Society, and published in Hooker's "Journal 

 of Botany for 1841-42." In 1842 Hooker and Bauer's 

 "Genera Filicum" was completed, wherein I described 

 twenty new genera. 



Collections of dried specimens were occasionally 

 placed in my hands for naming, among which may 

 be mentioned Schomburgh's "Ferns of British Guiana," 

 published in Hooker's "Journal of Botany" for 1842. 

 The "Ferns of New Zealand," in Dr. Hooker's "Flora 

 of New Zealand," in 1854. Ferns collected during 

 the voyage of the surveying ship "Herald" by Dr. 

 Seemann, contained in the volume of the Botany of 

 that voyage in 1854. I also drew up a list of the 

 great collection of Ferns made in India by Drs. 

 Hooker and Thomson. 



