268 CLETHRACEAE. 
CLETHRA. Pepper Bush. 
(Family Clethraceae). 
Shrubs or small trees, mostly 
scurfy- or tussocky-tomentulose 
when young: commonly decidu- 
ous. Twigs rounded or obscurely 
3-sided: pith relatively large, 
white, or browning when cut, con- 
tinuous, reticulated with firmer 
strands. Buds solitary, sessile or 
frequently developing in the first 
season, the lateral small and ob- 
scure, the terminal larger, ovoid, 
rosy, very sharp, with three cadu- 
cous tomentulose scales. Leaf- 
scars alternate, clustered toward 
the tip, triangular, little raised: 
bundle-trace 1, protruding: _ sti- 
pule-sears lacking. 
Winter-character references:— 
Clethra alnifolia. Schneider, f. 
95. ©. barbinervis. Shirasawa, 
283, pl. 13. 
Twigs slender: end-bud 3x5 mm. 
(White alder). (1). C. alnifolia. 
Twigs stouter: end-bud large (5X10mm.). (2). C. barbinervis. 
Clethra is unusual among its relatives in possessing a 
type of pubescence which appears much like that in which 
the hairs are spoken of as stellate, or several-armed from a 
common stalk: here the appearance results from the occur- 
rence of unbranched hairs in closely set clusters or tufts. 
