91 
cells. Below the epidermis we find a few layers of large chloro- 
phyll-containing cortical cells, which become very much com- 
ressed in the dry fruit. Within these are the fibro-vascular 
bundles, the main trunks running longitudinally, and connected 
by branching and anastomosing lesser bundles. The longitudina 
bundles have a strong group of caoutchouc-containing cells accom- 
panying them on their inner side, and immediately beneath them 
we find a large mass of circularly running cells of the same 
showing their cell-walls very distinctly when the caoutchouc has 
been dissolved out by chloroform.” 
These investigations did not settle the position of the genus, 
and Mr. Weiss left the matter with the remark that perhaps the 
tribe Crotonee might include Hucommia in preference to Phyl- 
lanthez of the same order—Euphorbiacee. 
speci a ow living plants e museum of the 
Jardin des Plantes came t aterial whereby Prof. Oliver was 
enabled to publish a second figure (Hooker's Icones Plantarum, 
the garden of the Faculty of Medicine, and by the firm of 
Vilmorin, Andrienx, & Co., have supplied material for the 
anatomical investigations of M. Barthelat (Jowrnal de Botanique, 
xiv., 1900, p. 55) and the economic inquiry of MM. Dybowski and 
a Rendus de V Académie des Sciences, Paris, cxxix., 
p. 558). 
. 4 
Examination of the dried flowering specimens which had been 
received in 1894 froma French missionary—Pére Fa 
Trochodendracexw. Solereder refers it to Hamamelidaces. It is 
impossible to discuss here the cause of this difference of opinion ; 
let it suffice to say that it indicates the difficulty experienced in 
assigning to its true position this peculiar genus. Wherever from 
and compares in justification of his view the Hippocrateacez, in 
which caoutchoue cells are found in certain species. 
In Hucommia the caoutchouce vessels do not branch and unite 
nor are they present, according to Barthelat, in the embryo 
Their contents, too, are more of the nature of gutta percha than 
indiarubber ; and in structure they are much more similar to the 
