180 CRUCIFERiE. Warea. 



W. cuneifolia, Nutt. Root long, slender, vertical : stem l| to 2 feet high, with a few 

 slender ascending simple branches : leaves obovate to oblong or linear, obtuse or retuse, 

 sometimes mucrouate, cuneate at tlie base, sessile, 8 to 12 lines long; the thyrsoid or corym- 

 bose inflorescence dense ; the lower pedicels horizontally spreading : flowers white or pur- 

 plish : petals sub-orbicular with a very slender claw : gynophore in fruit 3 to 6 lines long ; 

 siliques slender, curved, pendulous, 15 lines in lengtli. — Nutt. 1. c. 84 ; Gray, 1. c. 156, t. 6'6; 

 Chapm. Fl. 28. Cleome cuneifolia, Muhl. Cat. 61. Staideija gracilis, DC. Syst. ii. 512, & 

 Prodr. i. 200. — Sandy hills, Georgia to S. Florida ; fl. August to November. 



"W. amplexifolia, Nutt. Resembling the preceding closely in habit and technical char- 

 acters but with shorter ovate acutish leaves (6 to 7 lines long) with broad sessile slightly 

 clasping bases: flowers purple, a little larger. — Nutt. 1. c. 83, t. 10; Torr. & Gray, Fl. i. 98. 

 Stanleya amplexifolia, Nutt. Am. Jour. Sci. v. 297. — Sandy hills, Florida, apparently less 

 frequent than the other ; fl. September. 



Ordeii XI. CAPPARIDACEyE. 



By a. Gray. 



Herbs, or in warm countries some shrubs or trees ; with pungent or acrid 

 watery juice, alternate leaves, and 4-merous but 6-androus flowers after the type 

 of Gruciferoe, or some polyandrous, a usually one-celled ovary with (commonly 

 two) parietal placentae, and no false partition between them, amphitropous or 

 campylotropous ovules, and reniform seeds filled with an incurved embryo, the 

 cotyledons incumbent. Leaves mostly palmately compound. Flowers her- 

 maphrodite. Receptacle often thickened or lengthened between the petals and 

 stamens. Fruit when dehiscent with valves apt to separate from filiform placentas 

 in the way of Fumariacece and some Papaveraceee. Fruit anomalous and 2-celled 

 in Wislizenia and OxystyUs. 

 Tribe I. CLEOIMEib:. Fruit a 2-valved capsule or 2-coccous. Chiefly herbs and 



annuals. 



* Shrubby : capsule inflated, many-seeded, tardily dehiscent. 



1. ISOMERIS. Calyx 4-cleft, persistent. Petals 4, not unguiculate. Receptacle dilated 

 into a hemispherical torus, bearing the 6 exserted equal stamens, enlarged and glandular on 

 the upper side. Ovary long-stipitate, many-ovuled on the two placentae ; style very sliort : 

 stigma minute. Capsule oval, inflated, coriaceous, tardily 2-valved. Seeds smooth. 



* * Herbaceous : capsule membranaceous, several-many-seeded, one-celled, 2-valved : valves 

 falling away from the nerviforra placent£e. 

 -J— Stamens 8 to 32, rarely fewer : torus depressed, bearing a gland on the upper side. 



2. CRIST ATELLA. Petals laciniate, cuneate-flabelliform ; the two anterior smaller, all 

 conspicuou.% unguiculate. Stamens 6 to 14. Ovary declined, behind it a conspicuous 

 tubular truncate gland. Cap.sule ascending, short-stipitate, linear. Seeds cochleate-reniform. 



3. POLANISIA. Petals entire or emarginate, little unequal, commonly unguiculate. A 

 small solid gland usually on the torus behind the sessile or short-stipitate ovary. Capsule 

 linear to oblong, many-seeded. 



^_ ^^ Stamens 6 : torus more or less thickened and sometimes elevated between the inser- 

 tion of the entire more or less ascending petals and the stamens. Calyx usually deciduous. 



4. CLEOME. Capsule linear to oval, several-many-seeded. Mostly a gland or projection of 

 the torus on the upper side, behind the ovary. 



6. CLEOMELLA. Capsule few-seeded, siliculose, m<ire or less flattened contrary to the 

 replum; valves cymbiform to elongated-conical! (iland of torus obsolete or wanting. 

 Petals not ungniculate. 



