66 CRUCIFER^E. THYSANOCABPUS. 



RAPHANUS. 



indehiscent, 1- celled, 1 -seeded. Seeds pendulous, somewhat flat- 

 tened, margined. Cotyledons accumbent to oblique-incumbent. 



T. curvipes Hook 1. c. Somewhat hirsute at base, glabrous above, 

 6-25 inches high: radical leaves, obi anceolate, 1-3 inches long pin natifid 

 or sinuately toothed : upper ones lanceolate to linear, sagittate-auriculate 

 and clasping at base, entire or sparingly toothed : pods rounded to obo- 

 vate or ovate, densely tomentose or glabrous 2-4 lines broad including the 

 entire or crenate, veined and often perforated wing, emarginate at the 

 summit and tipped by the short purple style, usually colored ; pedicels 2- 

 4 lines long, at length recurved. Common on dry hillsides Washington 

 to California, Arizona and Idaho. Flowering in early spring. 



T. radians Benth. PL Hartw. 297. Stems 6-18 inches high simple or 

 with a few simple, elongated ascending branches, glabrous : lowest leaves 

 runcinately toothed or pinnatifid; the cauline ones ovate-lanceolate and 

 auriculate-clasping : racemes long, loosely flowered : pedicels usually as- 

 cending but nodding near the apex, 4-8 lines long: petals purple , exceed- 

 ing the sepals; pods rounded, 45 lines in diameter, tomentose or quite 

 smooth, scarcely emarginate with a broad entire translucent wing con- 

 spicuously marked by radiating nerves : style short. Southern Oregon 

 ( Umpqua valley) to Central California. 



Tribe IX. Raphan^ss DC. Pods indehiscent^ transversely separ- 

 ated into 1-few-seeded joints. Seeds globose. Cotyledons condu- 

 plicate. 



36 RAPHANUS Tourn. Inst. 229 t. 114 L. Gen. 11. 882. 



Coarse annual or biennial herbs witn pinnatifid leaves and 

 white or purple flowers. Sepals erect, the lateral somewhat sac- 

 cate. Petals large, unguiculate. Stamens 6, unappendaged, 

 attenuate to a slender or rather stout beak, indehiscent trans- 

 versely divided by several false partitions, seeds globular, pend- 

 ulous. 



R. SATIVUS L. Sp. ii 669. Stems stout and branching 1-4 feet high from 

 a straight thick annual root: leaves lyrately pinnatifid, hirsute: petals 

 white to purple 6-8 lines long : pods terete 4-6 lines in diameter, gradually 

 narrowed to an elongated beak, usually 2-3-seeded. Escaped from culti- 

 vation, Washington to California. 



ORDER VIII. CAPPARIDACE^ Endl. Gen. 889. 



Herbs or shrubs with alternate leaves without stipules and 

 perfect hypogynous flowers. Sepals or lobes of the calyx 4. 

 Petals 4, rarely 5-8 or none, usually ungu T 'culate, more or less 

 unequal. Stamens, in ours, 6-12, rarely 4. Ovary often stipi- 

 tate, composed of two united carpels with two parietal pla- 

 centae. Styles united into one, often filiform, sometimes short 

 or almost none: stigma often discoid or subcapitate. Fruit 

 one-celled, in ours a two-valved pod-shaped capsule. Seeds 

 campylotropous, reniform, without albumen. Embryo curved. 

 Cotyledons foliaceous, somewhat incumbent. 



1 Jackson ia. Stamens 8-32 : flowers whitish or pinkish : pods elon- 

 gated, dehiscent from the top downward. 



2 Cleorae. Stamens 6: flowers yellow or purplish: pods oblong or 

 linear, dehiscent from the base upward. 



