136 CRUCIFERAE. [Vor.. I. 
24. LESQUERELLA S. Wats. Proc. Am. Acad. 23: 249. 1888. 
Low annual or perennial herbs, with stellate pubescence, simple leaves, and racemose 
mainly yellow flowers. Petals entire. Anthers sagittate. Pod generally inflated, globose 
or oblong; valves nerveless; septum translucent, nerved from the apex to the middle. Seeds 
several or many in each cell of the pod, flattened, marginless or narrow-margined; cotyledons 
accumbent. [Dedicated to Leo Lesquereux, 1805-1889, Swiss and American botanist. ] 
A genus of about 35 species, natives of America, and mainly of the western parts of the United 
States. 
Pods densely stellate-pubescent. 
Pods oblong, acute, 2'’ long; low perennial. 1. L. spathulata, 
Pods globose, 1'’ in diameter; tall annual. 2. L. globosa. 
Pods oval or subglobose, 2’’ long; tall biennial or perennial. 3. L. argentea. 
Pods glabrous or very nearly so. 
Annual, sparingly pubescent; stem slender, 1°-2° tall, much branched; southwestern. 
4. L. gracilis. 
Perennial, densely stellate; stem rather stout, 6’-12' tall, simple; western. 5. L. ovalifolia. 
Perennial, 1'-6' tall; stem simple; arctic. 6. L. arctica. 
1. Lesquerella spathulata Rydberg. Low 
Bladder-pod. (Fig. 1745.) 
a ie spathulata Rydberg, Contr. U. S. Nat. Herb. 3: 486. 
1896. 
Perennial, tufted from a deep root, very finely canescent and 
stellate, 4/-5’ high; stems slender, generally numerous, simple. 
Lower leaves oblanceolate or spatulate, 6’’-12’’ long, acutish, 
narrowed into a petiole; the upper linear, mainly less than 1/” 
wide; flowers yellow, about 2’’ broad; racemes rather few-flow- 
ered; pedicels 3//-6’’ long, ascending, or recurved in fruit; pods 
oblong or nearly globose, slightly compressed, acute, subacute 
or rarely obtuse at each end, finely canescent, about 2’” long, 
few-seeded, tipped with a style of about their own length; 
septum commonly unperforated. 
Dry hills, Nebraska and South Dakota to Montana and the North- 
west Territory. June. 
2. Lesquerella globésa (Desv.) S. 
Wats. Short’s Bladder-pod. 
(Fig. 1746.) 
Vesicaria globosa Desv. Journ. Bot. 3: 184. 1814. 
Vesicaria Shortit T. & G. Fl. N. A. 1: 102. 1838. 
Lesquerella globosa §. Wats. Proc. Am. Acad, 23: 
252. 1888 
Slender, erect or ascending, sparingly branch- 
ing, 6/-20’ high, finely stellate-pubescent all 
over. Basal leaves obovate, 1/-1 4’ long, obtuse; 
stem-leaves narrower, linear or oblong, smaller, 
sessile, entire or with slightly undulate margins, 
the lowest sometimes narrowed into a petiole; 
flowers yellow; petals 2’’-3’’ long; pedicels slen- 
der, spreading, 4’’—5’’ long in fruit; raceme elon- 
gating; pod nearly globular, 1/’ in diameter, 
glabrous when mature; seeds 1 or 2 in each cell; 
style very slender, 2’’ long. 
In open places, Kentucky and Tennessee to east- 
ern Missouri. April. 
