34 



CRUCfFER^E 



22. Coron6pus. — /Wreniform, 2-lobed, indehiscent, 2 -seeded. 



23. Lepidium. — Pod roundish, compressed, keeled, 2 — 4- 

 seeded. 



Tribe 7. Thlaspidece. Cotyledons accumbent ; flowers white 



24. Thlaspi. — Petals equal ; pod rounded, flat, notched ; 

 valves boat-shaped, winged at the back ; seeds numerous. 



25. Iberis. — Petals unequal; /Novate, notched ; valves boat- 

 shaped, winged at the back ; seeds 2. 



26. Teesdalea. — Petals unequal ; pod roundish, notched ; 

 valves boat-shaped, keeled ; seeds 4. 



27. HuTCHfNSiA. — Petals equal; pod elliptic, entire; valves 

 boat-shaped, keeled ; seeds 4. 



Sub-order IV. Lomentdcear. Fruit indehiscent or lomentaceous 



Tribe 8. Isatidea. Pod indehiscent, i-chambered t i-seeded ; 



cotyledons incumbent 

 *28. Isatis. — Pod compressed ; valves keeled. 



Tribe 9. Cakilineai. Lomentum 2-jointed 



29. Crambe. — Lower joint seedless ; upper i-seeded. 



30. CAKfLE. — Each joint 1 -seeded. 



Tribe 10. Raphdnea. Lomentum tapering or monoliform, 

 many-seeded 



31. RAphanus. — Pod smooth, inflated ; style persisting as a 

 beak. 



1. MATTHfoLA (Stock). — Herbs, sometimes shrubby, downy 

 with stellate hairs ; sepals erect ; petals with long claws ; seeds 

 winged. (Named in honour of Matthiolus, an Italian physician.) 



1. M. sinudta (Great Sea Stock). — Stem herbaceous, spreading 

 1 — 2 feet ; leaves oblong, downy, the lower ones sinuate-toothed ; 

 flowers 1 in. across, purple, fragrant by night ; pods rough, 

 glandular. —South and south-west coasts. — Fl. May — August. 

 Biennial. 



2. M. incdna (Hoary Shrubby Stock). — Stem shrubby, erect, 

 branched, 1 — 2 feet, hoary; leaves lanceolate, generally entire, 

 hoary ; flowers 1 — 2 in. across, purple ;pods eglandular. — Cliffs in 

 the Isle of Wight. — Fl. May, June. Perennial. The " Queen 

 Stock " of gardens. 



*2. Cheiranthus (Wallflower).— Herbs, sometimes shrubby, 

 pubescent with adpressed bipartite hairs ; sepals erect ; petals with 



