MUSTARD FAMILY. Cruciferae. 
There are a good many kinds of Lesquerella, all Ameri- 
can; low plants, more or less hairy or scurfy; flowers mostly 
yellow, in clusters; petals without claws; pods roundish, 
more or less inflated, and giving the common name, Blad- 
der-pod, also used for Isomeris arborea. 
Pretty little plants, often growing in 
peor Bladder-  Guantities among rocks in mountain 
Txcauerblle canyons. The slender stems are from a 
pur pirea few inches to over a foot tall, springing 
White, pink from a cluster of root-leaves, varying a 
ae good deal in shape, dull-green and harsh 
to the touch. The flowers are half an 
inch or more across, with white petals, often tinged with 
pink, with a little yellow in the throat, and form a pretty, 
rather flat-topped cluster. 
In desert places, such as the terrible 
ae Bladder- candy wastes of the Petrified Forest, 
Faerie where it seems a miracle that anything 
Arisonica should grow, we find the close, pale, gray- 
Yellow green tufts of this little plant, crowned 
Avenel with racemes of small bright-yellow flowers. 
The small, thickish leaves are long, narrow 
and white with close down, the stems, about three inches 
high, branch at the root and the little pods are tipped with 
a style of about their own length. JL. Gorddni, of Arizona, 
also has clusters of little yellow flowers, often covering 
sandy hillsides with bright color; the leaves slightly stiff 
and rough, the pods much inflated. It resembles L. 
purpurea in general form and size. 
There are many kinds of Brassica, coarse ‘‘weeds”’ in 
this country. This is the ancient Latin name for Cabbage, 
which belongs to this genus, as well as Cauliflower, Turnip, 
and Brussels Sprouts. 
A European ‘‘weed,’’ common every- 
pati: Os where. In California it grows to an 
Yellow enormous height, sometimes twelve feet, 
Summer and when in bloom is a beautiful feature 
U-S. of the landscape, covering the fields with a 
shimmering sheet of pale gold. The leaves are dark- 
green, smooth or with a few hairs, all with leaf-stalks, the 
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