lkgl:min()S7p:. 



10' 



Its m«)st important use is as an ingredient in the production of dyes. 



As a liedgiuj,'-plant it is highly esteemed ; on account of its rapid growth, 

 its crooked habit of growth, and its strong si)iues, it is one of the best-known 

 jdants for fencing ])nrposes. 



It makes excellent fuel, anil is very liartl and heavy. 



Statistics. — Ahoixt 64,000 tons are annually taken into (ireat Britain, and 

 nearly as much into the United States. 



Marts. — The priucij^al jjorts to which logwood is taken are: London, m 

 Great uiitain ; ^'ersailles, in Frauce; aud New York, in the United States. 



5, barely united at base. Petab 



is o, 



CASSIA, L. (Senna.) Sepals 

 unequal, spreading. Stamens 5 to 10, unequal apart, Irequently im- 

 perfect. Anthers opening by two chinks at the apex. Pod many- 

 Flowers vellow. 



>eeded, often with cross partitions. 

 1, 



Leaves pinnate. 



Leaves alternate, ])iu- 

 oval-lauceolate, acute, 



C. acutifolia, Delile. Stem woody, 3 feet high, 

 nate, stipulate ; leaHets in fron; 4 to 6 pairs, sessile 

 oblique at base, nerved, three fourths of an 

 inch long. Flowers yellow, in axillary spikes. 

 Fruit a ])od or legume, an inch long, half an 

 inch broad, flat, elliptical, obtuse, membranous, 

 aud smooth, divided into 6 or 7 cells, each con- 

 taining 1 seed. 



2. C. obovata, DC. Like the above, except 

 that it is 18 inches in heiglit. Leaf with 5 to 

 7 pairs of leaflets, obovate and mucronate. 

 Legume flat, kidney-shaped, and clothed with 

 a short inconspicuous down. 



3. C. angustifolia, Wahl. Stem erect, smooth. 

 Leaflets in 4 to 8 pairs, sessile, lanceolate, ob- 

 scurely mucronate, smooth, downy beneath, 

 with a wavy line along the under side of mar- 

 gin, one to one and a quarter inches long. 

 Legume oblong, abrupt at base, round at ajjex, 

 an inch and a half long and half an inch broad. 

 Annual. 



4. C. Marilandica, L. Stem 3 to 5 feet high. 



Leaflets in 8 to 10 jiairs. an inch and a lialf long and half an inch wide, 

 oblong, blunt, and nmcroiuite ; the main petiole has a club-shaped gland at 

 its base. Flowers in short axillary racemes on the ui)per ])art of sten), yellow, 

 fading to white. Anthers black, 10 in number, and une(|ual. Tods Imnging, 

 3 inches long, flat, linear, hairy at flrst. stipules falling off. 



5. C. fistula, L. Large tree, branching regularly, and forming a symmetrical 

 head ; wood hard and heavy. Leaves of .5 to ])airs of ojjposite leaflets ; leaf- 

 lets 3 to 5 inches long, ovate, pointed, undulate, smooth, on short ])etioles. 

 Pod a foot long, an inch thick, cylindrical, woody, dark-brown, hanging. 

 When the plant is disturbed by the wind the ]iods strike together and i)ro- 

 duce a sound which may l)e heard at a considerable distance. 

 Upper Egypt. 



Species. — T\wix' are many sjjecies of the Cassia, but those already described 

 are the ones from which the commercial product;^ 

 the American trade. 



Cassia Marilandica (Seuua). 



Native in 



are obtained that enter into 



