168 



208. R. verticillatns L. 8wamp Dock. 



Foiincl at the edge of bayous and in shallow water. 

 2(>9. E. brittaiiiea L. Great Water Dock. 



Not rare in the lake plain and in low, flat places. 



210. R. crispns L. Curled Dock. 



Common in waste places. 



211. R. obtnsifolius L. Bitter Dock. 



In situations similar to the preceding. 



212. Fagopyrum fagopyrum (L.) Karst. Buckwheat. (F. asculentum 



Moench.) 



Along- roadsides where it has escaped. 



213. Polygonum amphibium L. Water Smartweed. 



Common at the edges of the lake. 



214. P. emersum (Michx.) Britton. Swamp Smartweed. (P. miihleuberfjii 



Watson.) 



Abundant in bayous and low places about the lake. 



215. P. incaniatum Ell. Slender Pink Smartweed. 



C'ommon in wet soil. 



216. P. pennsylvanicum L. 



Abundant. 



217. P. hydropiperoides. 



Common, especially in a shallow pond in the southeastern por- 

 tion of the lake plain. 



218. P. orientale Jj. Prince's Feather. 



Escaped cultivation in a field east of the lake. 



219. P. virginianum D. Virginia Knotweed. 



Rather sparingly found at the edges of low woods. 



220. P. aviculare Iv. Doorweed. 



Common in yards. 



221. P. erectum L. Erect Knot Grass. 



Not so abundant as the preceding, and in moister places. 



222. P. convolvulus L. Black Bindweed. 



In dO' cultivated fields. 



223. P. scandens L. Climbing False Buckwheat. {P. (himctonim nanidens 



Gray.) 



Some in moist ground along Cherry Creek. 



224. P. saggitatum L. AiTow-leaved Tear Thumb. 



In moist soils about the lake. Very abundant. 



