Cleome. CAPPARIDACE^. 121 



obovate-rhomboidal. 4-6-seeded, raised on a filiform stipi'. Embryo condu- 

 plicate. — A slender annual. Leaves 3-foliolate: leaflets linear. Raceme ter- 

 minal, leafy. Flowers yellow. 



C. Mexicana (DC.)— "/r. /. Mex. rned." fide DC. I. c. ; Tarr. ! in 

 ann. lye. New-Yo7-k, 2. p. 157 ; Don, in Edinb. new phit.jour. {Jan. 1831) ; 

 Hook. ! ic. 1. /. 28. 



Mexico, DeCandoJle; Texas, Drtimmondl Aikansas, Dr. James! — 

 Glabrous, a foot or more hii^h, branchinj; above. Leaflets narrowly linear- 

 lanceolate, flat, longer than the petiole. Pod somewhat compressed, silicle- 

 shaped. Stipe longer than the pod. Style very short. Placentae filiform, 

 persistent after the valves fall off, each about 3-seeded. 



2. GYNANDROPSIS. DC. jyrodr. 1. p. 237. 



Sepals distinct, spreading. Petals 4. Torus Unear, elongated. Stamens 

 fi: the lower part of the filaments adnate to the torus its whole length. Pod 

 linear-oblong, raised on a long stipe Avhich rises from the top of the torus. — 

 Annuals. Leaves digitately 3-7-foliolate. Flowers in a terminal raceme. 



§ ^Estivation open. — Gymnogonia, R. Br. 



1. G. pentaphylla (DC.) : minutely glandular-pubescent ; middle leaves 

 5-foliolate ; lower and floral leaves 3-foliolate ; leaflets obovate, entire or ob- 

 scurely serrulate. — DC. l. c. ; IV. ^ Am. prodr. Ind. \.p. 21. Cleome penta- 

 phyUa,L/m?.; Pur.9h,fi.2.p.Ul; Nutt.! gen.2.p.73; Bot.mag.t. 1681. 

 Cleome (Gymnogonia) pentaphylla, R. Br. app. Denh. <S- Clapp. voy. p. 17. 



In cuhivated grounds, Pennsylvania (Pur.sh) to Florida. Introduced. 

 May-July. — Stem 2-3-feet high. Penducles slender. Calyx deciduous. 

 Petals white : claws long and slender. Pod 2-3 inches long. — A native of 

 Africa and India. 



3. CLEOME. Linn, (in part) ; Gcertn. fr. t. 76. 

 Cleome & Peritoma, DC. 



Sepals distinct, or sometimes more or less united below. Petals 4. Torus 

 minute or nearly hemispherical. Stamens 6, or rarely only 4, often unequal. 

 Pod linear or oblong, subsessile or raised on a stipe. — Annual (rarely peren- 

 nial) herbs, or shrubs. Leaves digitately 3-9-foliolate or simple. Flowers 

 soUtary, or in a terminal raceme. 



§ 1. Sepals more or less united below: calyx marcescent, at length some- 

 times separating at the base : torus minute : pod stipitate. — Peritoma, 

 DC. (Atalanta, Nutt.) 



The discovery of 3 additional species allied to Cleome serrulata, Pursh, renders 

 it obvious that this plant cannot be separated from Cleome. They might perhaps 

 all be referred to the section Pedicellaria of De CandoUe. 



1. C. serrulata (Pursh) : leaves 3-foliolate ; leaflets lanceolate or spatulate, 

 minutely serrulate ; sepals united more than half their length j petals (violet- 



16 



