30 Cruciferae. 



XNU.—SINAPIS. 



Pod nearly cylindrical tapering, seeds globose in a single row, calyx 



spreading, flowers yellow. 



SINA'PIS ARVEN'SIS (in). Charlock. 5—8. Stem and leaves 



(131) bristly, pods with many angles rugged and knotted spreading_longer 

 than the awl-shaped beak, leaves 1} rate. Cornfields. 



SINA'PIS AL'BA (80). White Mustard. 6—7. Pods spreading 



(132) knotted shorter than the flat two-edged beak, leaves lyr.nte. Coin- 

 Jields. Fig. p. 24. 



SINA'PIS NI'GRA (62). Common Mustard. 6—9. Pods quadran- 

 (129) gular adpressed, beak subulate short, lower leaves lyrate, cauline 

 leaves entire linear-lanceolate. Cornfields. 



y.NlU.— KAPHA N US. 



RAPH'ANUS RAPHANIS'TRUM (105). Wild Radish or Jointed 

 154) Charlock. 6 — 9. Stem i — 2 ft., radical leaves lyrate rough, fruit 

 without valves or dissepiment jointed, flowers yellow veined with 

 purple. Cornfields. Fig, p. 44. 

 R. sativus is the cultivated Radish. 



X IX . — 7 'EESDA LI A . 



Leaves chiefly radical, forming a rosette, flowers minute white, pods 

 orbicular or obovate, valves slightly winged, on horizontal pedicels, cotyledons 

 accumbent. 



TEESDA'LIA NUDICAU'LIS (70). 4—6. Stems 2— 6 in., slender, 

 (149) leaves pinnatifid, two outer petals larger than the others, pods on 

 slender spreading pedicels. Sandy and gravelly places. 



XX. —SENEBIERA. 



Prostrate herbs with pinnate leaves, and small white flowers in short 

 racemes, pods small indehiscent, laterally compressed, orbicular wrinkled, 

 2-seeded, cotyledons incumbent. 



SENEBIE'RA CORONO'PUS (81). Wart-Cress. 6—9. Pod scarcely 

 (138) notched, deeply wrinkled, style subulate. 



Senebie'ra did'yma (40). 7—9. Pod slightly wrinkled separating into 

 (137) two nuts, style minute. [W. Wl. C. Cl. 



XXL — C^AVZ^. 

 Stem stout fleshy branched, flowers in long racemes, pods indehiscent. of 

 2-angular i-celled joints, lower joint persistent, upper joint compressed 

 i-seeded deciduous, cotyledons accumbent. 



CAKI'LE MARIT'IMA(59). Sea-Rocket. 6—7. Leaves fleshy oblong 

 (153) lobed, flowers lilac or white. Sandy and shmgly shores. 



XXU.— /SATIS. 

 ISA'TIS TINCTO'RIA. Woad. Stem 1—2 ft. Erect, radical leaves 

 obovate petiolate, cauline leaves sessile sagittate, flowers small yellow 

 numerous in crowded panicles, pod I -seeded indehiscent obovate or 

 oblong with a broad wing pendulous. [Wl. {Guildford), C. Cl. 



