Raphanus. CAPPARIDACE.E. 49 



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

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



2. T. laciniatus, Nutt. 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, Xutt. 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 1 h feet high : radical leaves runcinate- 

 piimatilid, the cauline ovate-lanceolate ami auriculate-clasping : 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. — PI. Hartw. 2 l J7. 



Volleys and low hills in Central California, much less frequent thau the precediug. 



4. T. pusillus, Hook. Roughly 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. — Ie. PI. t. 43 ; Hook. & 

 Am. Bot. Beechey, 324. T. oblongifolius, Nutfe in Torr. & Gray, Fl. i. 118. 



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



T. kkectus, 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. EAPHANTJS, 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 1\ 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. 



It. ItAi'iiANisTKiM, Linn. Petals yellow, veined. 1 oming 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 lields. 



To he expected in California. 



Order VIII. CAP P ARID ACE^E. 



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 pi ataa from which the 



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

 herbage, although sometimes pungent (a* in Capers), is generally nauseous or bitter. 

 — Stamens sometimes numerous, when 6 nearly equal in length, «r not distinctly 



