base sometimes acute ; five-nerved ; primary veins of the blade 
remarkably incurved ; margin closely crenated ; crenatures 
glandular ; above intense but bright green, beneath paler, 
and with fine reticulations. 
Leaves on young trees lanceolate and feather-nerved. 
N.B. I have met with several young trees of this in the 
Gorenki gardens at Moscow, where nothing was known of 
their origin. The beautiful pyramidal form of this plant 
when 18 to 20 feet high, and its very short leafstalks, are 
remarkable features. 
32. Populus candicans, Hort. Kew ? Mich. Arb. Forest, 
t. 98. f. 2. Spach. 1. c.p. 33. 
T? *ee subpyramidal, with bright green round branches, 
which in adult trees are stout and brown ; heads swollen, 
abounding in resin smelling like rhubarb. 
Stipules spreading, acute, balsamiferous. 
Petioles of adult trees long, equal to half the length of the 
blade of the leaf, often longer, with a very open furrow run- 
ning from the base to the apex. 
j Leaves spreading, flat, and slightly cordate at the base, 
broadly ovate or ovate- orbicular, shortly acuminate, delicately 
five-nerved, deeply and flatly crenated ; crenatures connecting 
a minute gland, which is sometimes obliterated, ovate-oblong 
and even somewhat rhomboid leaves occur ; otherwise all are 
coriaceous, above bright green and shining, beneath paler and 
opaque, with very slender reticulations hardly even when old 
rust-coloured. 
Leaves on young trees unknown. 
N.B. This tree occurs here and there planted about St. 
Petersburgh. 
33. Populus pseudo-balsamifera, Fisch. 
Tree large, pyramidal, bright green ; branches terete, 
somewhat fastigiate, but also graceful in adult trees ; buds 
slender, varnished with but a little balsam which smells 
slightly. 
Stipules , in living specimens not seen, in dried ones appa- 
rently adpressed. 
Petioles long, scarcely shorter than the blade of the leaves, 
roundish, slender, with an open furrow extending from the 
base to the apex. 
