Vor. II.] MUSTARD FAMILY. 139 
1. Bursa Bursa-pastoris (L.) Britton. 
Shepherd’s Purse. (Fig. 1752.) 
Thiapsi Bursa-pastoris \,. Sp. Pl. 647. 1753. 
ibe pastoris Weber in Wigg. Prim. Fl. Holst. 47. 
Capselta Bursa-pastoris Medic. Pfl. Gatt. 1:85. 1792. 
Bursa Bursa-pastoris Britton, Mem. Torr. Club, 5: 
172. 1894. 
Erect, branching, 6’/-20’ high from a long deep 
root, pubescent below, mainly glabrous above. 
Basal leaves more or less lobed or pinnatifid, form- 
ing a large rosette, rarely entire, 2’-5’ long; stem- 
leaves few, lanceolate, auricled dentate or entire; 
flowers white, about 1/’ long; pedicels slender, 
spreading or ascending, 5’’-7’’ long in fruit; pods 
triangular, cuneate at the base, truncate or emar- 
ginate at the apex, 2/”-4’’ long; seeds 10 or 12 in 
each cell. 
In fields and waste places, very common. Natural- 
ized from Europe, and widely distributed as a weed 
over all parts of the globe. Jan.—Dec. Other names 
are St. James’-weed, Case-weed, Mother’s-heart. 
27. CAMELINA Crantz, Stirp. Austr. 1: 18. 1762. 
Erect annual herbs, with entire toothed or pinnatifid leaves, and small yellowish flowers. 
Silicles obovoid or pear-shaped, slightly flattened; valves very convex, I-nerved. Seeds sev- 
eral or numerous in each cell, oblong, marginless, arranged in 2 rows. Stigma entire; style 
slender. Cotyledons incumbent. [Greek, low flax.] 
A genus of about 5 species, natives of Europe and eastern Asia. 
\ 
1. Camelina sativa (L.) Crantz. Gold-of- 
Pleasure. False Flax. (Fig. 1753.) 
Myagrum sativum V,. Sp. Pl. 641. 1753. 
Camelina sativa Crantz, Stirp. Austr. 1:18. 1762. 
Pilose-pubescent, or glabrous, simple, or branching 
above, 1°-2° high. Lowest leaves petioled, entire or 
toothed, 2’—3/ long, lanceolate, acutish; upper leaves 
sessile, smaller, clasping by a sagittate base, mostly 
eutire; pedicels slender, spreading or ascending, 6//— 
10’ long in fruit; flowers numerous, about 3/’ long; pod 
obovoid or pyriform, margined, slightly flattened, 3//— 
4’ long, about 2’/-3/’ wide; style slender, 114’’ long. 
In fields (especially where flax has been grown) and 
waste places, frequent or occasional throughout our area. 
Adventive or naturalized from Europe. Old naine Mya- 
grum. Cultivated in Europe for the fine oil of its seeds; 
nutritious to cattle. June-July. 
28. NESLIA Desy. Journ. Bot. 3: 162. 1814. 
Annual erect branching herbs, hispid with branched hairs, with entire leaves, and small 
yellow racemose flowers. Silicles small, globose, wingless, reticulated, indehiscent, 1-celled, 
1-seeded or rarely 2-seeded. Style filiform. Seeds horizontal; cotyledons incumbent. 
[Dedicated to J. A. N. De Nesle, a French botanist. ] 
A monotypic genus of Europe and eastern Asia. 
