680 MONOECIA TETRANDRIA. Alnus. 
ALNUS: Schreb. gen. N. 1419. 
Male calyx the scales of the ament, three-flowered. Corol 
from three to four-parted. Female calyx the scales of the 
ament, two-flowered. Corol none. Siylestwo, Nut com- 
— two-celled. 
1, A. glutinosa, Willd. iv. 334. 
Male peduncles branched, Leaves roundish- evil ser- 
rulate, some obtuse, some pointed ; veins glutinous, and their 
axills villous underneath. Stipules lanceolate oblong. 
Found by Colonel Hardwicke, on his tour to Shreenagur, 
See Asiat. Res. vi, p. 373. 
2. A. dioeca, R. 
Leaves oblong, polished, entire, obtuse pointed, axills of the 
veins naked. Male aments sae cylindric, eens fal- 
cate, lanceolate. 
-Kokra the vernacular name at Silhet, where the tree is indi- 
genous, and grows to be of considerable size ; its timber very 
hard, and used for various economical purposes, The tree 
flowers in March, and the seed ripens about the beginning of 
the cool season. ; 
Young branchlets smooth, much divided, Leaves alter- 
nate, short-petioled, oblong, entire, obtuse pointed, of a firm — 
texture, and very smooth ; from three tosix inches long, and 
from two to two and a half broad. Stipules falcate-lanceolate, 
ciliate, MaLe aments axillary, several together, sessile, cy- 
lindric, about an inch long, Scales reniform, ciliate, concave, 
. from three to four-flowered, Calyx four-parted, Coral 
none. Filaments four, arising from the base of the segments 
of the calyx, and of their length; Anthers two-lobed. Germ — 
a small sub-cylindric, villeias gland in its place. FEMALE 
AMENTS on a separate tree; axillary and lateral below the 
leaves, solitary, sessile, sub-globular, few-flowered. Scales 
—veneonccemmte: Tmt gg 
of the ament, and:eglyx:atam the male. Covel nome wae 
