830 Wisconsin Academy of Sciences, Arts, and Letters . 
309. Asarum reflexum, var. ambiguum, Bicknell. 
Occasional; with the type. 
PoLYGONAGEiE. Buckwheat Family. 
310. Bum ex Acetosella ; L. Sheep Sorrel. 
Common; everywhere in fields and waste ground. 
Becoming a decided pest. 
311'. Bumex verticillatus, L. Swamp Dock. 
Frequent; low places in woods. 
312. Bumex altissimus, Wood. Pale Dock. 
Occasional; moist soil. 
313. Bumex Patientia, L. 
Bare; noted for the first time in summer of 1900 at 
two stations, both within Bacine city limits. A large 
robust species. Bot noted in Swezey’s list, likely be¬ 
cause the plant is of later introduction. 
314. Bumex Britannica, L. Great Water Dock. 
Frequent ; wet swamps and along streams. 
315. Bumex crispus, L. Curled Dock. 
Common; roadsides, fields and waste places. 
316. Bumex obtusifolius, L. Bitter Dock. 
Common; waste places, wood borders, and fields. Of¬ 
ten growing with B. crispus. 
317. Fagopyrum esculentum, Moench. Buckwheat. 
Occasional; persistent in fields after cultivation. 
318. Polygonum amphibium, L. 
Occasional; ponds, swamps and low meadows. 
319. Polygonum Hartwrightii, Gray. 
Occasional; low meadows. Seldom flowers. 
320. Polygonum Muhlenbergii, Watson. 
Bare to occasional; banks of streams and ditches. 
321. Polygonum lapathifolium, L. 
Common; moist situations. 
322. Polygonum Pennsylvanicum, L. 
Occasional; low places. 
323. Polygonum Persicaria, L. Lady’s Thumb. 
Common; fields, gardens and waste places. 
324. Polygonum hydropiperoides, Micbx. Smartweed; Water- 
Pepper. 
