who in his MS. Itinerary Notes proposed for it the name _ 
of Slackia, after an eminent microscopist. This name, — 
however, Griffith did not himself publish for Decaisnea (his 
“Itinerary Notes” having been posthumously edited), and_ 
in 1845 he gave the same name to a genus of Palms, which 
he published in the “ Calcutta Journal of Natural History” 
(vol. v. p. 468), and which was further described and figured 
in his posthumous “ Palms of British India.” The Palm 
genus Slackia has, however, been lately determined by me — 
to be identical with Iguanwra of Blume, and the question 
is, whether Slackia should not now be reverted to for 
lecuisnea. I think not ; (1) because Griffith himself not 
only never published it, but abandoned it for that plant and 
gave it to another; (2) because if he had lived and pub- 
lished his Itinerary Notes, he would assuredly have expunged 
the name Slackia therefrom; and (3) because his whole 
description, ‘“ Frutex caulibus simplicibus robustis foliis 
pinnatis subtus glaucis carnosis, racemis pendulis, floribus 
e viridi luteis, perianth. acuminatiss.,” is wholly insufficient 
to establish a genus upon, or without the aid of the number | 
referring to his herbarium, to identify the plant by. Con- 
sidering further that the name Decaisnea is that of a 
botanist whose essay on the tribe to which it belongs—the | 
Lardizabalee—is a classical work, I have no hesitation in 
retaining it, and shall look out for another Indian genus 
whereby to commemorate Mr. Slack’s services to microscopy- 
The figure here given is taken from a plant five feet high, | 
growing in the Temperate House at Kew, raised by Mr. 
Max Leichtlin, of Baden (who presented the young plant — 
to Kew), from seed sent by Mr. Gammie from Sikkim. It 
flowered in May of the present year for the first time, and 
proved to be a male plant. 
Descr. Trunk or trunks, for sometimes several spring 
from the ground from a common root, six to ten feet high, 
as thick as the arm, very brittle; bark pale, covered with - 
lenticels, pith very large; branches few, subterminal, erect. 
Leaves terminal on the branches, two to three feet long, — 
horizontal; petiole slender, terete, jointed on the stem; 
leaflets many pairs, four to six inches long, petiolulate, 
ovate or elliptic acuminate, green above, glaucous beneath, 
thin (not fleshy as described by Griffith). Racemes terminal — , 
and axillary, a foot long, horizontal, many-flowered. Flowers _ 
drooping, green, one inch long, on slender pedicels as long 
