18 KEY AND FLORA 
1. L. laricina Koch. American Larcu, Tamarack, Hackma- 
TACK (wronely, but quite aera called Cypress and Juniper). 
A tall, slender tree, 30-100 ft. high, Leaves slender and less than 
1 in. long, very pale bluish-green, Cones 4-% in. long, few-scaled. 
Wood hard, tough, aud heay y, of considerable use for shipbuilding. 
2. L. decidua Mill. European LArcn. Leaves bright green and 
longer. Cones longer than in the preceding species and many-scaled. 
Cultivated from Europe. 
VI. TAXODIUM Richard 
Trees. Leaves spreading so as to appear 2-ranked, decidu- 
ous. Flowers moncecious, appearing before the leaves ; stam1- 
nate ones numerous, globose, forming long, terminal, drooping, 
panicled spikes; anthers 2-5-celled. Pistillate flowers single 
or in pairs, bractless, the peltate scales 2-ovuled. Cone globose ; 
the very thick woody scales angular, separating at maturity. 
Seeds 5-angled, pyramidal.* 
1. T. distichum Richard. Bap Cypress. A very large tree; bark 
dark brown, rough, fibrous; many of the twigs deciduous with the 
leaves. Leaves alternate, opposite, or whorled, 2-rauked, flat, linear, 
13 in. Jong. Cones terminal, globose, about 1 in. in diameter; ends 
of the sealeS’ much thickened, wrinkled, and with a distinct. trian- 
gular marking. Common in swamps and on the borders of streams ; 
wood reddish, soft, ght; specially valued for shingles and fence 
posts, and for boat building.* 
VII. THUJA L. 
Flowers small, terminal, monccious, on different branches. 
Stamens each consisting of a scale-like portion bearing 4 
anther-like cells. Pistillate flowers consisting of a few overlap- 
ping seales which ripen into a small, loose cone. Leaves ever- 
green, opposite, and closely overlapping on the stem, of two 
kinds, those on the more rapidly growing twigs awl-shaped, 
the others mere seales. 
1. T. occidentalis L. Arnor Vir, Cepar. A small tree, 20-50 
ft. igh, with soft, fibrous bark. Leaves mostly awl-shaped and blunt. 
Cones ellipsoid aN their scales 2-seeded. Grows on rocky ledges, but 
reaches its greatest size in cool cedar swamps. Wood soft, yellowish, 
fragrant, durable, prized for shingles and fence posts. 
