GENERA AND SPECIES. 
Annual ; invested with simple appressed hairs; leaves 
pinnatifid or incised ; pod linear ; flowers yellow... 
Annual ; leaves pinnatifid, seliatels ane pod 
narr bowed toward the base ; flowers white .. es 
Cakile. 
A coarse glabrous herb, inhabiting sandy sea-shores ... 
Stenopetalum. 
Pods erect, elongate, 2 to 5 times as long as broad. 
Hoary tomentose ; pedicels as long as the pod ; 
petals thrice as long as the calyx .. 
Glabrous ; pedicels shorter than the pod ; ee 
yellow, twice as long as pai leaves few, 
narrow-linear 
Pods spreading or — alsbullee or idveith 
Hirsute ; pedicels slender, 2 or 3 times longer than 
calyx ; petals 4 or 5, more than twice as long as 
calyx ; pod oval-oblong 5 # oi =its 
Glabrous ; pedicels 2 to 3 lines long; petals under 
2 lines, scarcely longer than calyx ; pod globular 
Glabrous; pedicels shorter than sepals; petals 
yellow, with Jong trisect points; pod nearly 
globular aie ead we ae 
Geococeus. 
Dwarf, stemless, tufted annual; with pinnately divided 
spreading leaves, 15 to 3 inches long 
Alyssum. 
Dwarf, wiry, erect, hoary annual; leaves linear to 
oblong-spathulate ; flowers white, very small 
Menkea. 
Pod ovate, 2 lines long ; petals white 
Pod globular, 14 to 2 lines long ; petals Pallas. 
Capsella. 
Pod laterally compressed, cuneate, emarginate atop. 
Dwarf, erect, much branched, hairy annual; leaves 
small, obovate ; flowers white pa 
Pod elliptical or ovoid, not compressed. 
Glabrous, dwarf, slender, decumbent annual ; 
flowers white ; ‘seeds 10 to 12 in each cell 
Glabrous, prostrate ; flowers yellow ; seeds 4 
B 
17 
Richardsii 
cardaminoides 
maritima 
velutinum 
lineare 
nutans 
sphaerocarpum 
croceum 
pusillus 
minimum 
australis 
sphaerocarpa 
pilosula 
elliptica 
humistrata 
