102 CRASSULACEAE 



16. ERYSIMUM L. 



Leaves entire to toothed. Pods lonfj-linear, quadrangular, strongly 



nerved. Seeds in one row in each cell. Cotyledons incumbent. 



Flowers 6'''-12^^ high. 1. -E. asperum. 



Flowers 2'^-4'^ high. 2. E. repandum. 



1. E. asperum DC Western Wall Flower. 1°-2° high : leaves 

 linear-lanceolate, sinnate-dentate : pods IV-V long, stout, on thick ped- 

 icels. — In waste places at Sheffield and Kansas City. Rare. May-June. 



2. E. repandum L. l°-2° high : leaves linear, nearly entire : pods 

 2'_4' long, slender, widely spreading.— Abundantly adventized near 

 Atherton ; occasional elsewhere. Also at Argentine, Kansas. May-June. 



17. CONRINGIA Link. 



Glabrous herbs with elliptic-ovate, entire, clasping leaves and linear, 

 quadrangular, nerved pods. Seeds in one row in each cell. Cotyledons 

 incumbent. 



1. C. orientalis (L.) Dumort. Treacle Mustard. 1°-3° high: 

 pods 3^-5'' long. — In waste places at Sheffield. Rare. June. 



Family 53. CAPPARIDACEAE Lindl. 

 Herbs with compound alternate leaves and racemose, perfect flowers. 

 Sepals and petals four each. Stamens six or more, not tetradynatnoas. 

 Ovary 1-celled, with two parietal placentae. 



Stamens six. 1- Cleome. 



Stamens eight or more. 2. Polanisia. 



1. CLEOME L. 



Leaves 3-5-foliolate. Petalsclawed. Pod long- stipitate, linear-oblong, 

 many-seeded. 



1. C. aemilata Pursh. Honey Plant. 2°-6° high, glabrous : leaf- 

 lets oblong-lanceolate : flowers showy, pinkish. — Abundant along rail- 

 roads about one mile south of the Union Depot in Kansas City. July- 

 September. 



2. POLANISIA Raf. 



Glandular-pubescent herbs with 3-foliolate leaves. Petals clawed. 

 Pod nearly sessile, oblong, many-seeded. 



1. P. graveolens Raf. Clammy Weed. 1°-2° high : leaflets obo- 

 vate : stamens slightly exceeding petals : petals yellowish-white, 2''-3'' 

 long. — Frequently adventized along railroads at Sheffield. July-Sep- 

 tember. 



FAMILY 54. CRASSULACEAE DC. 



Herbs with perfect, regular and symmetrical flowers. Calyx 4-5-cleft 

 or parted. Petals 4-5. Stamens 4-5 or twice as many. Carpels 4-5, 

 1-celled, the numerous seeds arranged in two rows. 



Carpels separate. 1 • Sedit ai. 



Carpels united to the middle. 2. Penthoritm 



