Myrica.} AMENTACES,. 475 
% Ovary 1-celled, with a i pear eréct ovule; fruit dru- 
paceous, covered with resinous secretions. 
Male and female catkins sceniie, erect; scales of the male catkins 
broad, panied, anther longer than the filaments . Myrica. 
* ee 8g * with a nae! ‘y suspended ovule in eac ch 
at ig mall, — l-celled, combined 
wit, der in a t of co 
of the are pains ea those of ‘ihe females deciduous. 
female catkins cylindrical, compact; nuts not connate with 
the involucre; anther-cells distinct - Betula. 
Anther-eells more or less connate; sealos of. feniale Cathkin, 
rsistent Alnus. 
Scales of the cat thins “sessile ; female catkins loose, spike. “like ; 
bracts solitary, each in a 3-lobed leafy involuc . Carpinus. 
Ovary ee i 2 sus adel nus in each cell, 
sever 
rather large, bong or e orinbabud: more or ber enclosed 
in the enlarg 
oe or the involucre reduced to a via or annular 
n which the solitary nut rests (ac 
Nats solitary, fastiice ona salted dons ellate eae: ren ais 
with a circular opening at the apex he . Quercus. 
Nuts 4 salitary 0 or by 2-3 ~— acoened | in the enlarge, sig or 
zonate invelucre . Castanea. 
oa ae L. 
at the base; anthers 2-celled, the cells dehiseing err ommeiags 
Female flowers with 2-4 bractlets 
thinly -ePiaoedts, entire or slightly serrate, while bescent 
on the nerves beneath, soon glabrescent ; male catkins eylin- 
drical, remotely arran ong the slender page rachis in a 
