CRUCIFERAE (MUSTARD FAMILY) 



427 



750. C. saliva. 



Part of fruiting 



raceme x %. 



751. C. microcarpa 



Part of fruiting 



raceme x %. 



Part of fruiting 

 raceme x 2 / 3 . 



pod x iy 3 . 



1. C. SATIVA (L.) Crantz. Annual ; leaves 

 lanceolate and arrow-shaped ; pods large (6-7 

 mm. broad), on pedicels 1.2-3 cm. long. A 

 weed in newly planted fields, etc. (Nat. from 

 Eu.) FIG. 750. 



2. C. MICROCARPA Andrz. More slender; 

 racemes long ; pedicels 8-18 mm. in length ; 

 pods smaller, 4-5 mm. broad. (C. silvestris 

 Wallr. ) Roadsides, newly seeded fields, etc. 



(Nat. from Eu.) FIG. 751. 



12. NESLIA Desv. BALL MUSTARD 



Pod subglobose, compressed, beaked, indehiscent, 1-celled or 

 obscurely 2-celled, the surface reticulated. Seed 1 (rarely 2). 

 Cotyledons incumbent. Style slender. Flowers small, yellow. 

 (Named for ,/. A. N. de Nesle of Poitiers.) 



1. N. PANIC ULATA (L.) Desv. Slender annual or biennial, 

 somewhat stellate-pubescent, simple up to the inflorescence ; 

 leaves oblong, sagittate-clasping ; racemes elongate ; pedicels 752. N. paniculata. 

 slender, spreading, 5-9 mm. long ; capsule 2-3 mm. in diameter. 

 Grain fields and waste places, e. Que. to B. C., locally s. to 

 Pa. (Nat. from Eu.) FIG. 752. 



13. CAKILE [Tourn.] Ludwig. SEA ROCKET 



Pod short, 2-jointed across, fleshy, upper joint separating at maturity ; each 

 joint indehiscent, 1-celled and 1-seeded, or the lower sometimes seedless. Seed 

 erect in the upper, suspended in the lower joint. Cotyledons obliquely accum- 

 bent. Seaside fleshy annuals. Flowers purplish. (An old Arabic name.) 



1. C. edSntula (Bigel.) Hook. (AMERICAN S.) Leaves obovate, sinuate and 

 toothed ; lower joint of the fruit obovoid, emarginate ; the upper ovate, flattish 

 at the apex. (C. americana Nutt.) Atlantic coast and shores of the Great 

 Lakes. July-Sept. Joints nearly even and fleshy when fresh ; the upper one 

 4-augled and appearing more beaked when dry. 



14. RAPHANUS [Tourn.] L. RADISH 



Pods linear or oblong, tapering upward, indehiscent, several-seeded, 

 continuous and spongy within between the seeds, or necklace-form by 

 i constriction between the seeds, with no proper partition. Style long. 

 J Seeds spherical and cotyledons conduplicate. Annuals or biennials. 

 f (Name from pq., quickly, and <j>aive<r0ai, to appear, alluding to 

 * the rapid germination.) 



1. R. RAPHANfsTRUM L. (WlLD R., JOINTED CHARLOCK.) 



Pods 2-8 seeded, necklace-form, slender-beaked ; leaves lyre- 

 shaped, rough ; petals yellow, turning 

 whitish or purplish, veiny. A trouble- 

 some weed in fields, Nfd. to Ont. and 

 Pa. (Nat. from Eu.) FIG. 753. 



2. R. SATlvus L. (RADISH.) Pet- 

 als pale purple ; pods thick, scarcely 

 moniliform, 2-3-seeded, with conical 

 beak. Persistent about old fields, 



758. E. Raphanistrum. frequent. (Introd. from Eu.) FIG. 



Pod x a/ 8 . Bud x iy 3 . 764. 



V 



754. R. sattvus. 

 Bud xl 2/3. Pod x */ 8 . 



15. BRASSICA [Tourn.] L. MUSTARD. TURNIP 



Pod slender or thickish, nearly terete or 4-sided, with a stout often 1-seeded 

 beak ; valves 1-5-nerved. Seeds globose, 1-rowed. Cotyledons conduplicate. 



