198 CELASTRACEAE. 
PACHISTIMA. 
(Family Celastraceae). 
Low shrubs: evergreen. Twigs 
very slender, somewhat 4-sided, 
the bark becoming corky-thick- 
ened and transversely checked: 
pith minute, rounded, brownish 
and spongy. Buds solitary, ses- 
sile, ovoid, appressed, very small, 
with about 2 pairs of exposed 
scales, the terminal somewhat 
larger and with more visible 
scales. Leaf-scars opposite, 
minute, crescent-shaped, some- 
what raised: bundle-trace 1, in- 
distinct: stipule-scars lacking. 
Leaves small, subsessile, more or 
less serrate toward the end. 
In the Canadian mountains 
Pachistima is called the mountain 
lover. It is pictured photographi- 
cally under this name in the Al- 
pine Flora of the Canadian Rocky 
Mountains by Stewardson Brown and Mrs. Charles Schaffer. 
Leaves elliptical-oblong, revolute. (1). P. Canbyi. 
Leaves elliptical-oblanceolate, often flat. (2). P. Myrsinites. 
