CRUCIFERAE. [Von. II. 
6. Lesquerella arctica (DC.) S. Wats. 
Arctic Bladder-pod. (Fig. 1750.) 
Alyssum ? arcticum DC. Syst. 2: 324. 1821. 
Vesicaria arctica Richards. Frank. Journ. 743. 1823. 
Lesquerella arctica S, Wats. Proc. Am. Acad. 23: 254. 1888. 
Perennial, tufted, densely stellate-pubescent, stem 
nearly or quite simple, erect, 1/-5/ tall. Leaves ob- 
lanceolate, or spatulate, or the upper oblong, 1’ long or 
less, obtuse, entire, the basal ones narrowed into broad 
petioles, the upper sessile; petals about 2’’ long; pods 
oval or subglobose, obtuse, 2’’-3’’ high, glabrous or 
somewhat stellate-pubescent, few-seeded; septum per- 
forated; style 1’ or less long. 
Greenland and arctic America. Summer. 
Lesquerella arctica Purshii S. Wats. Proc. Am. Acad. 23: 
254. 1888. 
Taller, sometimes 6' high; septum of the sparsely stel- 
late-pubescent pod unperforated. Anticosti. 
25. HUTCHINSIA R. Br. in Ait. Hort. Kew. Ed. 2, 4:52. 1812. 
[HyMENOLOBUS Nutt.; T. & G. Fl. N. A. 1: 117. 1838.] 
Low mostly diffuse herbs, more or less pubescent with forked hairs, our species annual, 
with entire or pinnately lobed leaves, and very small white flowers in terminal racemes, the 
axis of the racemes much elongating in fruit. Stamens 6. Style wanting or very short. 
Silicles oval, obcompressed (7. ¢., at right angles to the partition), the valves with a strong 
midvein. Seeds numerous in each cell; cotyledons incumbent or accumbent. [Name in 
honor of Miss Hutchins, of Bantry, Ireland, an eminent botanist. ] 
About 8 species, natives of the northern hemisphere, only the following known in North 
America. 
1. Hutchinsia procambens (I,.) Desv. Prostrate Hutchinsia. (Fig. 1751.) 
Q Y 
Lepidium procumbens V,. Spec. Pl. 643. 1753- RSS 7 
Hutchinsia procumbens Desv. Journ. Bot. 3: 168. 1814. SY oO 
Hymenolobus divaricatus Nutt.; T. & G. Fl. N. A. 1: 117. 
1838. Q 
Capsella elliptica C. A. Meyer; Ledeb. Fl. Alt.3: 199. 1831. 
Tufted, somewhat pubescent, or glabrous, branching 
near the base, the branches ascending or procumbent, 
slender, 2/-6’ long. Lower leaves short-petioled, pin- 
natifid, lobed, dentate or sometimes entire, 14/—1’ long; 
upper leaves sessile or very nearly so, entire or lobed; 
flowers about 1%4’’ broad; pedicels very slender, ascend- 
ing or spreading, 3’/-6’” long in fruit; pods elliptic or 
oval, mostly obtuse or emarginate, 114’/-2’/ long; seeds 
several in each cell. 
In moist ground, often in saline situations, Labrador to 
British Columbia, and widely distributed in the Pacific 
States. Also in Europe, Asia and Australia. June-Aug. 
26. BURSA Weber in Wigg. Prim. Fl. Holst. 47. 1780. 
[CAPSELLA Medic. Pf. Gatt. 1: 85. 1792.] 
Annual erect herbs, pubescent with forked hairs, the basal leaves tufted. Flowers race- 
mose, small, white. Silicles cuneate, obcordate or triangular, compressed at right angles 
with the septum, their valves boat-shaped, keeled. Style short. Seeds numerous in each 
celj, marginless; cotyledons accumbent. [Middle Latin, purse, from the shape of the pod.] 
About 4 species, natives of the northern hemisphere. In addition to the following, another 
occurs in the western parts of North America. 
