PINACEAE 7 
1. rubens Sargent. Tree often becoming 30 m. tall, the bark rou ush: 
twigs stout, stiff, pubescent as are usually the sterigmata: leaves curved, 8—12 
m. lon g, dee ep-green: ones ovoid, 
2.504 em. long. [P. mariana (Fl. SE. 
L 
ie blac pruce—P. maria 
( Mill.) AME CERO d. as growing in the 
N. C. Mts., has glaucous leaves and small 
i cones. 
P. australis Small. Tree Paon ing 40 m 
i the Sida pepe! smooth: E d slen- 
der er, glabro or merely pubesce n line | 
between the Es ueni glabrous pee leaves MEE 8-14 mm. long, 
de Or D SO, DUE gr reen: cone ellipsoid, oval o a mostly jo 
than em. long. TP. (Chapm. F1.)|—(SovTH Us SPR 
SAM. a “Dr acid slopes, mu nore liffs, Blue Ridge, N. C. id Va. ip ess 
common dn. the preceding. ue in forests unmingled with other trees. 
4. TSUGA Carr. Trees. Leaves distichously spreading: blades linear, 
glaucous beneath, not jointed to sterigmata.  Pollen-saes opening transversely. 
Ovulate ament with inconspicuous bracts. Cone drooping. There are 7 species 
native of North America and Asia.—HEMLOCKS.—Spr.—Some species are tim- 
ber trees. 
Twigs tomentose with Jone hairs: cones narrowly ovoid when closed, 1.8—2.3 c 
long: scales nearly e i. T. epe Ry 
Twigs tomentose with Shot hairs, or glabrate: cones cylindric- 
ellipsoid .when closed, 3 cm. long: scales spreading at right . 
angles. 2. T. caroliniana. 
1. T. canadensis (L.) Carr. Tree becoming 30 m. tall, with a scaly- pres 
pid ps loosely spreadi ng, 6-14 mm. long, obtuse at the apex: stami inate 
l m in di S 
s, Ga. and Ala. t .8 pu 
Picea nb. this tree is fond of moist 
plaees and on yid often forms extensive 
forests. It is & graceful tree, with pliable 
branches, soft foliage, and smooth cones. 
L4 
2. T. caroliniana Engelm. Tree becoming 
25 m. tal, the bark relatively smooth: 
leaves rigidly spreading, mostly notched 
a a minate a t about 3 mm 
h stamina men , 
in diameter: cone ovoid when open, 25-30 mm. long; scales iji Or 
nearly so: seed-wing ellipsoid, over 1 em. long.—(CRAG-HEMLOCK. CAR A- 
HEMLOCK anaes and rocky slopes, frequently acid, Bl ; 
j ue Ridge Ga. to 
S Va.—A striking tree, but not graceful. The rigid branches are bristly with 
the ME leaves and even the cones are bristly on account of the widely 
divergent scales 
