G31} CLASSIFICATION AND DESCRIPTION * 93 
Genus 30. CLADRASTIS. 
Small tree with alternate, odd-pinnate leaves, the base 
of the petiole hollow, and inclosing the leaf-buds of the 
next year. Flowers large, pea-blossom-like in shape, in 
large clusters. Fruit pea-pod-like 
in shape and size. Wood light 
yellow, firm and hard. 
Cladrastis tinctoria, Raf. (YELLOW- 
woop.) Leaflets 7 to 11, oval to ovate, 
3 to 4 in. long, beautiful light green in 
color. Flowers 1 in. long, white, not so 
fragrant as the common Locust, in hang- 
ing panicles 10 to 20 in. long; blooming 
in June. Pods 2 in. long, ripe in August. 
Wild but rare in Kentucky and south. A 
beautiful tree, 20 to 50 ft. high, with 
very smooth grayish bark; rarely cul- 
tivated. 
C. tinctdria, 
Genus 81. ROBINIA. 
Trees or shrubs with alternate, odd-pinnate leaves, 
having spines on each side of the stalk in place of stip- 
ules. Leafstalk thickened near the base, and covering 
2 to 3 buds for the growth of a branch for the next year. 
An axillary bud also found that may produce a branch 
the same year as the leaf. Flowers large, pea-blossom- 
shaped, in large clusters. Fruit 
4} a pea-shaped pod. 
* Branchlets and leafstalks not sticky. 1. 
*Branchlets and leafstalks sticky .. 2. 
1. Robinia Pseudacacia, L. (Com- 
moN Locust.) Leaflets 9 to 19, small, 
oblong-ovate, entire, thin. Twigs 
purplish-brown, slender, smooth, not 
sticky. Flowers white, fragrant, in 
hanging racemes, 3 to 6 in. long. 
June. Pods flat, smooth, purplish- 
R, Pseudacacia, -_ brown, ripe in September. An irregu- 
