324 AN ATTEMPT TO DEFINE 
deference to those names, which support a contrary opinion on the 
subject. 
If I have failed in my endeavours to clear the way for future in- 
` quirers, it has certainly not been for want of opportunities while I was 
in India, or of means of verifying species during the latter five or six 
weeks—such as are not often enjoyed, and for which I feel deeply 
grateful. I have been permitted to borrow, first, the whole series of 
‘Specimens in the East India Company’s and Sir J. E. Smith’s herba- 
rium in the possession of the Linnean Society; secondly, the entire 
series in the matchless herbarium of Sir W. Hooker; thirdly, the noble 
collection both in extent and preservation (many specimens nearly as 
beautiful as in their fresh state!) formed by Dr. Hooker in Sikkim, 
and conjointly by him and Dr. Thomas Thomson on the Kasia hills, : 
aecompanied by all the drawings of the genus made by the former in 
both countries; fourthly, a number of beautiful sketches made for the 
late Mr. J. F. Cathcart, during his visit to Sikkim, by Luchmum Sing, 
an exceedingly clever Hindu painter formerly attached to the Calcutta 
Botanic Garden; fifthly, Dr. Thomson’s small collection of species 
found in the north-west mountains of Hindustan; sixthly, all the spe- 
cimens in Dr. Lindley’s herbarium; and seventhly, two-and-twenty 
drawings belonging to the Museum of the Hon. East India Company | 
(three presented by Dr. Hamilton, one by Dr. Wight, and eighteen by 
myself). I have further had the freest possible access to the speci- 
mens in the Banksian Herbarium (salve magnum nomen !) and those 
in Dr. Horsfield's collection, likewise preserved at the British Museum; 
and lastly, my friend and successor Dr. Falconer has, with the utmost 
readiness, furnished me with a copy of my entry of the genus in the 
manuscript Catalogue of the Calcutta Garden. 
-I have considered it my duty to refer to and quote, though not ac- 
cording to strict priority, all the authorities to which I had access, not 
wittingly omitting any, though some might perhaps have been dispensed 
_ with, as affording only repetitions of specific characters ; and in regard 
to such, I have not troubled myself or others with the mention of exclu- 
denda synonyma. My reason for citing the numbers in the Catalogue 
of the Indian Herbarium, and the Company’s drawings, is that others 
may be able to refer to and consult them if they wish it; but I have 
not thought it at all necessary to copy the names of collectors from the 
former. 
