Leaves deciduous, spreading, in 2 ranks. Flowers monoecious on the same branch, the staminate ones in spikes, and the pistillate ones in pairs below. Cones globular; the scales peltate, angular, thick, firmly closed till ripe, with 2 angular seeds under each. [Illustration: T. dístichum.] =Taxòdium dístichum=, Richard. (SOUTHERN OR BALD CYPRESS.) Leaves deciduous, flat, linear, ½ to ¾ in. long, in 2 rows on the slender branchlets, forming feather-like spray of a light green color. This whole spray usually falls off in the autumn as though a single leaf. Cones round, closed, hard, 1 in. in diameter. A fine, tall (100 to 125 ft. high), slender, spire-shaped tree with a large, spreading, rigid trunk, 6 to 9 ft. thick, and peculiar conical excrescences (called knees) growing up from the roots. Wild from Maryland south, and cultivated and hardy in the Middle and many of the Northern States. [Illustration: Var. pendulum.] Var. _pendulum_, with horizontal branches and drooping branchlets, has the leaves but slightly spreading from the stems, especially when young. Very beautiful; hardy as far north as Massachusetts. GENUS =102. SEQUÓIA.= Flowers monoecious, terminal, solitary, catkins nearly globular. Seeds winged, 3 to 5 under each scale. [Illustration: S. gigántea.] 1. =Sequóia gigántea=, Torr. (BIG OR GREAT TREE OF CALIFORNIA.) Leaves on the young shoots spreading, needle-shaped, sharp-pointed, scattered spirally around the branchlets; finally scale-shaped, overlapping, mostly appressed, with generally an acute apex, light green in color. Cones oval, 2 to 3 in. long, of about 25 scales. The largest tree known, 300 ft. high, with a trunk nearly 30 ft. through, found in California and occasionally planted east, though with no great success, as it is almost certain to die after a few years. [Illustration: S. sempérvirens.] 2. =Sequóia sempérvirens=, Endl. (REDWOOD.) Leaves from ½ to 1 in. long, linear, smooth, 2-ranked, flat, acute, dark shining green, glaucous beneath; branches numerous, horizontal, spreading. Cones 1 in. long, roundish, solitary, terminal; scales numerous, thick, rough, furnished with an obtuse point. A magnificent tree from California, where it grows 200 to 300 ft. high. In the East it can be kept alive but a few years even at Washington. GENUS =103. THÚYA.= (ARBOR-VITÆ.)