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3164. Clustered field sedge.—Carex marcida Boot. 
3165. Carex crinita Lam. Native of northwestern North America. 
3166. Great bulrush.—Scirpus lacustris L. Native of the north temperate zone. 
3167. Chairmaker’s rush.—Scirpus americanus Pers. Native of North America. 
3167.1. Mast.—Acorns of various species of Quercus (Fagaceae—Beech Family). 
An important wild food for hogs and turkeys. 
3167.2. Round-leaved willow.—The herbage of Salix orbicularis Anders. (Salicaceae 
—Willow Family). Native of North America. Eaten to some extent by 
cattle when fodder is scarce, in far northern regions. Collected at Kotze- 
bue Sound, Alaska, by N. McCook, 1920. 
3168. Broad-leaved dock.—Rumex obtusifolius L. (Polygonaceae—Knotweed 
Family). Native of Europe and a bad weed in the United States. Grown 
in some countries as a pasture plant for cattle. 
3169. Lambs’-quarters. Pig-weed.—Chenopodium album L. (Chenopodiaceae— 
Goosefoot Family). A cosmopolitan weed. It is eaten greedily by stock, 
especially pigs, and is highly nutritious. 
3170. Beets.—Beta vulgaris L. (See No. 3081.) 
3171. Spreading salt-bush.— Atriplex patula L. (Same family). A widely distri- 
buted weed. 
3172. Turnips.—Brassica Napus L. (Cruciferaeg—Mustard Family). Native 
of Europe and everywhere cultivated. 
3173. Winter rape.—A variety of the preceding. Especially valued for pig feed. 
Grown by H. H. Rusby at Newark, New Jersey. 
3174. The same in the dried state. Same source. 
THE PEA FAMILY (Fabaceae) 
3175. Canadian beggar-tick—Meibomia canadensis (L.) Kuntze. Native of the 
eastern United States. Many other species of this genus yield excellent 
fodder. 
3176. Common vetch.—Vicia sativa L. Native of Europe and cultivated. Natur- 
alized in the United States. Grown by H. H. Rusby at Newark, New 
Jersey. Other species of the genus yield good fodders. 
3177. The seeds of the preceding. Same source. 
3178. Hairy vetch.—The herbage of Vicia villosa Roth. Same source. 
3179. Red clover.—Trifolium pratense L. Native of Europe and largely cultivated 
as a cow fodder. 
3180. White clover.—Trifolium repens L. Native of the north temperate zone. 
3181. Hybrid clover.—Trifolium hybridum L. Native of eastern North America. 
3182. Alfalfa. Lucerne. Medick.—Medicago sativa L. Native of Europe and 
one of the most extensively cultivated of fodders. 
3183. Hairy bush clover.—Lespedeza hirta (L.) Ell. Native of eastern North 
America. 
3184. Spurred butterfly pea Bradburya virginiana (L.) Kuntze. Native of the 
eastern United States. 
3185. Pea vines.—Pisum satioum L. Native of Europe and everywhere cultivated. 
Grown by H. H. Rusby at Newark, New Jersey, 1919. 
3186. Maple peas.—A variety of the preceding, used as a stock fodder. Presented 
by H. H. Rusby. 
