334 WEEDS AND USEFUL PLANTS. 
1. PI’'NUS, LZ. Pine. P 
[The classical Latin name.] 
Flowers moncecious. SraMInaTE pies oo in terminal a9 
Stamens mamerous, ‘Slew ted on the nthers subse 
ssile, 2-cell 
opening lengt ge covered at apex by’ the dilated scale ake connective. 
¥F tary or clustered ; the carpellary aanlee with de 
— a ay ae: bearing a pair o of inverted ovules at i . 
Fru one formed of the woody scales whi ich are thickened at apex 
Sort “ n the White Pines), persistent and spreading when ripe and 
; the nut-leke seeds = sunk in an excavation at the base of each 
ed 
“te and win ering portion of its lining. 8 yledons 3-12, 
linear. Trees with aie in bundles of 2 — 5, needle-s e-shaped, each faseicle 
hom. the axils of a chaffy scale. voy generally maturing in the 
tumn of the second year after flowering 
® Leaves 2-3 (rarely 4) in a sheath: bark rough: cones woody, scales 
thi ese e tg and maou “pe sin @ spine. 
“ Leaves in twos, except in 
1. P. in’ops, Ait. Leavesrather short ; hse oblong ovoid, often 
curved ; spines of the scales seaier and straight. 
nch of a Pine with staminate aments at the top. A stamen. : 
PY ilieey hy pistillate aments at the apex and the fruit et pes ‘ele 236. A as 
jc ed fertile — _ two ovules at its base. 237. ripe oom, 3 eg pe ; 
o seeds r 238, The germinating neve ate Soe. ‘with e veral.cotyle- 
