822 MR. J. E. HOWARD ON 
specimens in a herbarium containing 44 specimens of different spe- 
cies of Cinchona, of which 12 are ** Ledgeriana" which I received 
from Mr. Moens in 1874, together with notes and (what is most 
valuable) analysis of the bark in almost every case. From these I 
selected specimens of Cinchona unquestionably derived from seed 
obtained by Mr. Ledger, and distinguished by the large amount 
of quinine contained in the bark. I have published all these 
analyses in pp. 58-63 of my ‘ Quinology of the East-Indian Plan- 
tations ;’ but it is necessary that I should recapitulate these. 
In plate iv. (macho form) :— 
Quinine E Vv oh cae ves 9:06 
Cimchonme <e- n a as 0:10 
Amorph: alk. 5 5 re 1-40 
10°56 
In plate v. (hembra form) :— 
Quinine enc cos 9:90 
Amiorph. wk. ov oes 2-09 
11:99 
In plate vi. (neutral form) :— 
Cnmme aeo aaa 9:97 
Amorph. alk a.. 1:70 
11:67 
The average produce in sulphate of quinine would certainly be 
more than 13 per cent. from this bark, which is also very rich and 
thick ; and it can easily be understood that the introduction of 
Ledger's superior seed has been the making of the Dutch plan- 
tations. How far these forms differ in every particular from 
the species figured by Dr. Trimen, I have already sought to 
show; but there is still more to be said as to the length and 
form of the flowers, which I have no doubt Mr. Fitch drew 
(in my figures) with his usual skill*; and it is equally clear to me 
that the drawing in the * Journal of Botany ' has been most cor- 
rect, presenting us, in fact, with a true micrantha flower in place 
of that of a Calisaya. Moreover, Mr. Moens gives the colour of 
the flowers as light red in his description of No. 42, from which 
I took the fruit-bearing branch figured under plate vi.t 
* He should have represented some of the flowers as nutantes ; but this feature 
varies, as also the size of the flowers in Mr. Moens's dried specimens. 
t Mr. Moens's No. 19, C. Ledgeriana, has also * flowers light red” (see p. 60 
of my * Quinology ’). 
