3 44 
CRUCIFERAE 
Lepidium, &c. All C. are harmless, and most are rich in sulphur 
compounds (to which the smell of boiling cabbages is due), and are 
thus useful in scurvy &c. 
Classification and chief genera (after Prantl) : 
The grouping of the smaller divisions of the order and the defining 
of the genera is a most difficult task. Many classifications have been 
devised. Prantl (in Nat. Pfi . ) bases his largely upon the hairs borne 
on the leaves. Others rely on characters of fruit and embryo &c. In 
any case the identification of a cruciferous genus is a difficult matter; 
we shall not here go into the details of the classification, but merely 
give PrantPs groups and the chief genera belonging to them. 
A. Hairs simple or none : no glandular hairs. 
I. Thelypodieae (stigma equally developed all round; style un- 
divided or prolonged above middle of cpls., or turned back). 
1. Stanleyinae: Pringlea, Thelypodium. 
2. Cremolobinae : Cremolobus. 
3. Heliophilinae : Heliophila. 
4. Chamirinae: Chamira. 
II. Sinapeae (stigma better developed over placentae). 
5. Lepidiinae: Subularia, Lepidium. 
6. Cochleariinae : Iberis, Cochlearia. 
7. Alliariinae: Alliaria. 
8. Sisymbriinae : Sisymbrium, Cakile, Isatis. 
9. Vellinae: Vella. 
10. Brassicinae: Sinapis, Brassica, Crambe. 
11. Cardamininae: Nasturtium, Cardamine. 
B. Hairs branched (a few exceptions): sometimes also glandular 
hairs. 
III. Schizopetaleae (stigma equal all round). 
12. Schizopetalinae : Schizopetalum. 
13. Physariinae: Physaria. 
IV. Hesperideae (stigma better developed over placentae). 
14. Capsellinae ; Capsella, Draba. 
15. Turritinae: Arabis. 
16. Erysiminae: Erysimum, Cheiranthus. 
17. Alyssinae: Alyssum. 
18. Malcolmiinae : Anastatica, Malcolmia. 
19. Hesperidinae : Hesperis, Matthiola. 
20. Moricandiinae : Conringia. 
[Placed in Parietales by Benth.-Hooker, in Rhceadinae by Warming.] 
Cryptadenia Meissn. Thymelaeaceae. 5 sp. Cape Col. 
Cryptanthus Otto et Dietr. Bromeliaceae (1). 6 sp. Brazil. Cultivated 
for their variegated leaves. 
Cryptocarya R. Br. Lauraceae (11). 40 sp. trop. and subtrop. The 
fruits of C . moschata Nees et Mart, are known as Brazilian nutmegs, 
and used as spice. 
