CRUCIFERAE (MUSTARD FAMILY) 



427 



750. C. sativa. 



Part of fruiting 



raceme x %. 



751. C. microcarpa 



Part of fruiting 



raceme x %. 



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

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

 mm. broad), un 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. hroad. (C. silvestris 

 ^Yallr.) — 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 J. A. X. de Nesle of Poitiers.) 



1. N. paxiculata (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. part of fruiting 

 — Grain fields and waste places, e. Que. to B. C, locally s. to raceme x Va- 

 Pa. (Nat. from Eu.) Fig. 752. Podxi%. 



13. CAKILE [Toum.] 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. edentula (Blgel.) Hook. (Amertcax 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. 



lyre- 



753. R 

 Pod X 



14. RAPHANUS [Tourn.] L. Radish 



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

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

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

 Seeds spherical and cotyledons conduplicate. — Annuals or biennials. 

 (Name from pa, quickly, and (paiveadaL, to appear, alluding to 

 the rapid germination.) 



1. R. Raphanistrum L. (Wild R., Joixted Charlock.) 

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

 shaped, rough ; petals yellow, turning 

 whitish or purplish, veiny. — A trouble- 

 some weed in fields. Nfd. to Out. and 

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

 * 2. R. SATivrs L. (Radish.) Pet- 

 als pale purple ; pods thick, scarcely 

 moniliform, 2-3-seeded, with conical 

 beak. — Persistent about old fields, 

 frequent. (Introd. from Eu.) Fig. 

 754. 



. Raphanistrum. 

 %. Bud x 11/3. 



754. R. sativns. 

 Bud XI2/3. Pod X Vs. 



15. BRASSICA [Tourn.] L. Mustard. Turxip 



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 



