94 DICOTYLEDONOUS PLANTS. 



1. C. marylandica linn.: nearly smooth ; leafets in 8 or 9 pairs, 

 ovate-oblong, mucronate, equal ; gland at the base of the petiole 

 ovate ; racemes axillary, many-flowered, shorter than the leaves ; 

 legume compressed, linear, hispid, at length smooth. 



HAB. Banks of streams. N. Y. to Car. W. to Miss. July, Aug. 

 2_(. Stem 3 4 feet. Flowers yellow, large, in axillary racemes, 

 which appear paniculate at the summit of the stem. Medfcinal 

 Big. Mai. Hot. i, 166. Wild Senna. 



2. C.fnjtrlcvlata Mich. : nearly smooth ; leafets in 8 or 9 pairs, ob- 

 long-linear, mucronate ; gland near the middle of the petiole, sessile ; 

 fascicles lateral, many-flowered ; petals and stamens of the same 

 colour ; legume smooth, curved, ascending. 



HAB. Dry fields. N. Y. to Car. June Aug. Q. Flowers 

 yellow. 



3. C. nictitans Linn. : stem erect or pubescent, branched ; leafets in 

 16 20 pairs, oblong-linear, obtuse, mucronate ; gland on the petiole 

 cup-shaped, on a slender foot-stalk ; peduncles subaxillary, short, few- 

 flowered ; flowers pentandrous ; legume pubescent. 



HAB. Sandy banks of streams. N. Y. to Car. June, July. . 

 Stem a foot high. Floicers small, yellow. The leaves are 

 somewhat irritable like the mimosa or sensitive plant. 



Sensitirc Plant. 



4. C. chamacrista Linn. : smoothish ; leafets in 10 15 pairs, oblong- 

 linear, mucronate ; gland sessile on the petiole ; peduncles 2 3- 

 flowered, above the axils, shorter than the petiole ; 2 of the petals 

 spotted ; legume pubescent. 



HAB. Sandy places. N. Y. to Car. W. to Miss. June Aug. 

 . Stem a foot or more high. Flowers yellow, sometimes the 

 base of all the petals spotted. 



30. CERCIS. Linn. 



Calyx 5-toothed, gibbous at base. Petals 5, with claws, 

 subpapilionaceous, all distinct ; wings large. Stamens 10, 

 free, unequal. Legume oblong, compressed, 1-celJed, many- 

 seeded ; upper seminiferous suture margined. Seeds obo- 

 vate. Decandria. Monogynia. 



C. canadensis Linn. : leaves roundish-cordate, acuminate, villous at 

 the axils of the nerves ; legumes x>n short foot-stalks ; flowers in small 

 fascicles. 



HAB. Woods. Can. to Car. W. to Miss. April. A small tree 

 with greyish bark. Flowers appearing before the leaves, of a 

 dark rose colour. Judas Tree. Red Bud. 



ORDER XXXVI. AMYGDALEjE. Lind. 



i 

 Calyx 5-toothed, deciduous, the odd lobe superior. Petals 



5. Stamens about 20, in aestivation curved inwards ; anthers 



