16 CRUCIFER.E. 
13. Brassica. Pod terete : valves convex with one straight 
dorsal nerve, lateral nerves none or represented by a few 
anastomosing veins. Seeds globose, in a single row. 
14. Sinapis. Pod terete : valves convex with 3 or 5 straight 
strong nerves. Seeds globose, in a single row. 
15. Erucastrum. Pod terete : valves convex with 1 straight 
dorsal nerve. Seeds oval or oblong, in a single row. 
16. Diplotaxis. Pod compressed : valves subconvex with 1 
straight nerve. Seeds oval or oblong, in 2 rows. 
Suborder II. LATISEPTiE. 
Pouch short, opening with two valves : dissepiment in its 
broadest diameter. 
Tr. IV. ALYSSINEsE. Cotyledons accumbent. 
17- Alyssum. Pouch roundish or oval, compressed. Seeds 
2 — 4 in each cell. Filaments usually toothed. Hypogynous 
glands 4. 
18. Koniga. Pouch oval, compressed. Seeds 1 — 2 in each 
cell. Filaments simple. Hypogynous glands 8. Carpo- 
phoruru 0. 
19- Draba. Pouch oval or oblong, slightly convex. Seeds 
many in each cell, not margined, in two rows. Filaments 
simple. 
20. Cochlea ri a. Pouch globose: valves very convex, with 
a prominent dorsal nerve. Seeds numerous. Filaments 
simple. 
21. Armoracia. Pouch globose : valves very convex, with- 
out a nerve. Seeds numerous. Filaments simple. 
[Tr. V. CAMELINEJE. Cotyledons incumbent. 
22. Camelina. Pouch subovate : valves ventricose with a 
linear prolongation at the end which is confluent with the 
persistent style.] 
[Tr. VI. VELLEM. Cotyledons conduplicate. 
23. Vella. Pouch ovate with a dilated winged leafy flat style 
longer than the convex valves.] 
Suborder III. ANGUSTISEPTjE. 
Pouch short, laterally compressed, opening with 2 boatshaped 
valves keeled and winged on the back : dissepiment narrow, 
linear, or lanceolate. 
Tr. VII. THLASPIDE^E. Cotyledons accumbent. 
24. Thlaspi. Pouch roundish, notched : valves boatshaped. 
