Raphanus. CAPPARIDACEJ3. 49 



Very common on dry hillsides from Los^ Angeles to Oregon ; also in W. Nevada and Arizona. 

 The form with perforated wing is frequently known as Lace-pod. 



2. T. laciniatUS, ISTutt. Smaller and more slender : leaves narrowly linear or 

 else pinnately or runcinately cut into narrowly linear segments; the cauline scarcely 

 auricled at base : pods obovate, pubescent or glabrous, 2 to 3 lines long, cuneate at 

 base, surrounded by a narrow entire or somewhat crenate wing. Torr. & Gray, 

 Fl. i. 118; Watson, Bot. King Exp. 31. 



Var. crenatus, Brewer. The broader wing more deeply crenate or fringed with 

 rounded lobes. T. crenatus, ]S"utt. 1. c. 



Less common than the last, ranging from the Sacramento to S. California and eastward in 

 Arizona ; the variety sometimes known as Fringe-pod. 



3. T. radians, Benth. Glabrous, 1 to H feet high : radical leaves runciuate- 

 pinnatihd, the cauline ovate-lanceolate and auriculate-claspiiig : petals about equal- 

 ling the sepals : pods round, 4 to 5 lines in diameter, tomentose or smooth, scarcely 

 emarginate, with a broad entire translucent wing conspicuously marked by radiating 

 nerves : style very short : pedicels 6 to 8 lines long, recurved. PL Hartw. 297. 



Valleys and low hills in Central California, much less frequent than the preceding. 



4. T. pusillus, Hook. Eoughly pubescent throughout, 3 to 12 inches high: 

 lower leaves broadly oblanceolate, entire or remotely dentate, \ to 1 inch long, 

 shortly petioled ; cauline leaves similar but smaller, usually entire, sessile but not 

 clasping : flowers barely a line long, sometimes apetalous : pods obovate to orbicular, 

 a line long or less, hirsute with hooked hairs, scarcely or not at all emarginate : 

 style short : pedicels 1 to 2 lines long, at length reflexed. Ic. PI. t. 43 ; Hook. & 

 Arn. Bot. Beechey, 324. T. oUongifolius, Nutt. in Torr. & Gray, Fl. i. 118. 



Common on low dry hills from Los Angeles to Vancouver Island. 



T. ERECTUS, Watson, is an additional species from Guadalupe Island, Palmer. Glabrous and 

 leafy : leaves oblong to oblanceolate, auriculate-clasping, sinuately dentate : fruit on erect pedicels, 

 minutely pubescent, the wing entire, not nerved nor perforated. 



29. RAPHANUS, Linn. RADISH. 



Pod indehiscent, elongated, terete, attenuated above, 2-jointed ; lower joint often 

 seedless, the upper inflated or constricted between the several seeds. Style long and 

 stout. Cotyledons enfolding the radicle. Coarse introduced annuals or biennials. 



The species are now reduced to half a dozen or less, all natives of the Eastern Continent. 



1. R. sativus, Linn. More or less hispid : flowers purple or rose-color, 8 to 10 

 lines long : pod inflated, long-pointed, 1 to 2| inches long, usually 2-seeded. 



The ordinary Radish, common in fields in various parts of the State ; the root not fleshy but 

 tough and stringy. There are numerous varieties in cultivation. 



R. RAPHANISTRUM, Linn. Petals yellow, veined, becoming whitish or purplish : pods neck- 

 lace-shaped, long-beaked, 1 - 9-seeded, breaking easily between the seeds. Known as Wild 

 Radish, and naturalized in various parts of the world as a troublesome weed in cultivated fields. 

 To be expected in California. 



ORDER VIII. CAPPABIDACE.aS. 



Herbs or shrubs, with alternate leaves and perfect hypogynous flowers; related to 

 Cruciferce, having the sepals or lobes of the calyx and petals (with claws) 4, the 

 stamens commonly 6, and a pod with a pair of parietal placentae from which the 

 valves fall away ; but the embryo is incurved rather than folded, and the juice or 

 herbage, although sometimes pungent (as in Capers], is generally nauseous or bitter. 

 Stamens sometimes numerous, when 6 nearly equal in length, or not distinctly 



