1895.) Notes and News. 189 
and the results are stated as follows: (1) Most arctic plants possess 
stomata on both leaf surfaces, the greater number being on the tee) 
surface; (2) the stomata are situated even with the surface of the leaf; 
(3) the mesophyll (transpiration tissue) is a very porous structure. 
In 1892 Dr. Ignatio Urban began the publication of “Additamenta 
ad cognitionem florae Indiae occidentalis,” in Engler’s Botan. Jahré. 
The second contribution (“Particula II”) of the series has just now 
appeared (1. c. 19: 80-199), dealing exclusively with the great and per- 
plexing tropical family Afyrface@. The amount of synonymy in many 
of the species is appaling, their great variability having led the earlier 
students of the family to a large multiplication of species. 
In THE Bull. 2 Herb. Boiss. (Jan.) Ad. Tonduz begins a series of pa- 
pers upon the botanical features of Costa Rica, the present number 
containing a photographic reproduction of a forest of “Indian trees.” 
In the same number Edmond Bonnet publishes some letters from 
Linnaeus and his son to David van Royen, Professor of Botany at 
eyden. Linnaeus seems to have had a prodigious correspondence, 
no less than 163 botanical correspondents having been li ¢ 
wrote to them all as fully as in the case of the letters before us it is 
difficult to understand how he found time for investigation. About 
400 of his letters are known, but the vast majority seem to have dis- 
appeared. 
THE HERBARIUM of Mr. Walter Deane, of Cambridge, is one of the 
most interesting collections in the country. r. Deane has confined 
himself to what may be known as the “Manual” plants. He has not 
merely tried to make a collection of excellent specimens of the ordi- 
tematic botany is becoming better recognized than formerly. Not 
Tare discrimination in the matter of genera and species, of which he is 
Said to have described more than any other writer on American 
Plants, excepting Dr. Gray. He was born in Yorkshire, England, in 
