PREFACE 



In 1889 Dr. Km 



me to 



Superintendent of the Royal Botanic- Garden, directed 



ange the Indo-Malayan Labiates preserved in this Herbarium 



Sir J. D. Hooker's article "Labiate" in the Flora 

 the material of the genus 



British Indm 



Gomphostemma, it was found that 



accordance with 



While examining 



(mainly Malayan) that appeared to th 



light 



tural d 



!> 



some 

 n of 



forma 



At Dr. King's suggestion an examination of all the material of 



peci 



undertaken 



The results are embodied in this paper, 



the -nuts available was 



The generosity of Mr. Tiiiselton Dyer, c.m.o\, f.r.s., Director of the Ito vl Garm -. 



* « m m mm m ■ m « — > 



Kew, who has kindly directed a number of specimens illustrati 



t! 



»g tiio ^renus to | M) §( . nt 



an it 



not had 



to the Calcutta Herbarium, has enabled mo to render the paper m.r» complete ih 

 otherwise would have been, but it could never have b< en prepared at all had 1 

 the benefit of much kind assistance from Mr. Hemslev, p.r.s., formerly Assistant fo 

 India (now Principal Assistant) in Kew Herbarium, who has taken infinite pains to 

 answer in detail many queries regarding particular specimens, and lias carefully compared 

 a set of specimens that correspond with the examples of the Walttchia* and 1-vnth 

 Herbaria at Calcutta with the types of Dr. Wallicii's species prcscrv* 1 in the Herb 



in mum. 



of 



the Linnean Society of London, and i ith the examples of the Wallich 



and 



Benthamian Herbaria at Kew. 



Mr. Ford, f.l.s., of Hong-Kong, has very generously communicated a dvg>li( 



c of 



species, an 



d Mr. E. Baker, f.l.s., has kindly replied to 



• • 



enquirn 



the only Chinese 



regarding some specimens contained in the British Museum. 



The time has not yet arrived for a final revision of this £«nus: some forms already 

 reported are still inadequately represented; many localities likely to yield examples are 

 still inadequately explored. This paper therefore does not claim to be complete either in 

 form or in matter: it is simply, as its title impl 



account, as uniform 



> 



possible 



with previous accounts, of the various forms hitherto reported. Reductions not warranted 



by the presence of the 

 but some forms which it 



necessary 



termediate forms have not 



not been effee I 



may be hoped 



ultimately to merge in previously named 



speci 



have been provisionally advanced to specific rank. The disadvantages of this method 



of 



treatment will it is hoped, be more than counterbalanced owing to the limits of hitherto 



recognised species hav 



future students of the genus that all the results of a somewhat 



material now available should be put on record, the reductions indicated by structural 



in"- been left unaltered. At the same time, since it is only just to 



prolonged study of the 



characters as 



probable have been duly set forth in a tabular form in the introduction, 



id 



in a 



subordinate form 



th 



DAVID TRAIN. 



Herbabium, Royal Botanic Garden, Calcutta: 



1st August 1890. 





