E/MPETRACEAE. 179 
CorEMA. Broom Crowberry. 
(Family Empetraceae). 
Low spreading shrubs: ever- 
green. Twigs tender, ridged be- 
low the leaf-scars: pith minute, 
continuous. Buds solitary, sessile, 
compressed round-ovoid, minute, 
with 2 or 3 scales. lLeaf-scars 
subverticillate, minute, half-round, 
somewhat raised: bundle-trace 1, 
indistinct: stipule-scars lacking. 
Leaves linear-oblong, revolute to 
a dorsal slit, microscopically den- 
ticulate. 
Though very different in tech- 
nical characters, the Empetraceae 
are suggestive of Ericaceae in 
vegetative characters. Anatomi- 
cal comparisons are made by Gi- 
belli in volume eight of the Nuovo 
Giornale Botanico Italiano, and 
by Mori in the same journal for 
1877; and an instructive lecture 
by Miall, in which their inrolled leaves figure, is published 
in volume 58 of Nature. The leaf-anatomy is discussed com- 
paratively by MacEwan in the Bulletin of the Torrey Botani- 
cal Club for 1894. 
Corema Conradii has borne the generic names Tucker- 
mannia, given it by Klotzsch in 1842, but already in use for 
another plant, and Oakesia, given it by Tuckerman in the 
same year,—both botanists failing to identify the supposedly 
new genus with the earlier named Corema. 
Glabrate on the ridges: bark exfoliating. C. Conradii. 
