100 ALKALOIDS FROM JAMAICA CHINCHONAS. 
have only a trace of waviness. But these differences are not of great 
importance. 
“The Tenorean H. Neapolitanum is unknown to me, but I possess 
a specimen of undoubted H. undulatum, from Messina, collected by 
Professor Hzeckel, of Jena, which proves that that species inhabits 
Sicily." | 
So far Dr. Braun. Dr. Bolle states that he is well acquainted with 
H. undulatum, and that it is not a native of the Canary Islands. ` 
The true nomenclature of this plant seems settled by the information 
that we now possess, and its range is extensive. Apparently it is not 
a very abundant plant anywhere. Its known localities are Algeria, 
Italy, Sicily, Spain, Portugal, Madeira, Azores, and south-western 
England.. 
Our Plate represents a specimen sent by Mr. Briggs. A bit of the 
stem (but the artist has omitted the black dots on the wings), an en- 
larged piece of a leaf (of which the margin is not so well represented as 
could have been wished, it is really wavy, not crenate), are added sepa- 
rately, as well as a flower and germen. 2 
EXPERIMENTS ON THE YIELD OF ALKALOIDS FROM 
THE LEAVES OF CHINCHONAS TANA IN JAMAICA; 
BY DR. DANIELL, F.L.S. 
In November, 1861, a number of young Chinchona shoots, from 2 to 
24 inches high, were transferred from the gardens of Bath to the Cold 
Spring coffee plantation, which is situated among the mountains about 
4000 feet above the sea-level. The species selected were Chinchona 
succirubra, C. micrantha, and C. nitida. By the end of the first year, 
one of the hardiest plants of the first species was 44 inches high, and 
had leaves over 13 inches long by 8 wide. In two years it was ô feet 
high, with ten branches, and a stem nearly 5 inches in circumference 
at the base. The progress of the other species was equally satisfac- 
tory, and the latest reports speak of the whole of them as being in a 
remarkably healthy and flourishing state. 
Mr. Wilson forwarded to Dr. Daniell leaves from the various species. 
