124 CAPPARIDACE^. Isomesis. 



2. C. Jamesil : stamens 6-9 ; petals pale yellow ; lamina of the lower 

 ones palmately firabriate-cleft ; sepals obtuse. — Cleome n. sp., Torr. ! in 

 ann. lye. New- York, 2. p. 168. 



In sand, Arkansas, />?\ James ! Texas, Drummond! ("Srd Tex. coll. no. 

 3.) — Strict, somewhat branched, a foot or more high. Leaflets rather shorter, 

 and flowers considerably smaller than in C. erosa. Sepals slightly unequal, 

 oblong, obtuse, as long as the claws of the petals. Petals obovate-orbicular, 

 somewhat cuneiform at the base ; lamina of the lower ones laciniately cleft, 

 but not parted to the base. Nectary at first undivided, at length cleft on the 

 inside (?). Stipe and style shorter than in the preceding species. Mature 

 fruit not seen. 



6. ISOMERIS. mat. mss. 



" Sepals united below, someAvhat spreading, marcescent. Petals 4, oblong, 

 sessile, regular. Torus fleshy, subhemispherical, produced into a small dUated 

 appendage on the upper side. Stamens 6: filaments equal, [inflexed in 

 sestivation] much exserted. Capsule large, obovate-eUiptical, inflated, coria- 

 ceous, indehiscent, stipitate, crowned with the very short subulate style. 

 Seeds several, very large, smooth. — A low tree, with a long tap-root, and a 

 very spreading top. Leaves crowded, 3-foliolate. Flowers large, yellow, in 

 terminal racemes. Whole plant with the unpleasant odor of Polanisia." 



/. arborea (Nutt. ! mss.) 



" St. Diego, California. — Stem about the thickness of a man's arm, very 

 knotty : the wood hard and yellow. Young branches, petioles, &c. minutely 

 pubescent. Leaflets lanceolate, mucronulate, glabrous. Calyx campanu- 

 late : segments triangular-ovate, acuminate. Petals slightly spreading. Cap- 

 sule slightly compressed, an inch or more long, and | of an inch broad, 

 longer than the stipe, crowned with the very short style : stigma minute. 

 Seeds several upon each parietal placenta, as large as a small pea: cotyledons 

 incumbently incurved." Nutt. 



This genus, with the character somewhat modified, may possibly be found to in- 

 clude several tree-like S. American species of Cleome, (of the section Pedicellaria), 

 and should perhaps be viewed as a section of Cleome. 



Order XYI. RESEDACEtE. DC. 



Sepals 4-6, somewhat united at the base, unequal, herbaceous, per- 

 sistent : aestivation open. Torus short, bearing a flat and rounded 

 glandular hypogynous disk, which is produced posteriorly (i. e. next the 

 axis) between the petals and the .stamens. Petals 4-6 (or by abortion 

 fewer), open in aestivation, deciduous, unequal, the posterior ones lar- 

 ger, the anterior ones often abortive or sometimes wanting ; claws 

 usually broad and thickened, nectariferous within ; the lamina often 

 lacerate or palmately parted. Stamens 8-20, rarely 3, inserted on 

 the disk : filaments erect : anthers oval, fixed by the middle, introrse. 



