FARWELL ON THE FLORA OF DETROIT. 45 



Order 14. Polygonales. 



FAMILY 27. POLYGONACE.F. Buckwheat Family. 



94. RUMEX, Lin. Dock. 



285. Acetosella, Lin. Sour Sab, Sorrel. Roadsides on Belle Isle. Common. 



286. crispus, Lin. Yellow Dock. On Belle Isle, etc. Common. 



287. obtusifolius, Lin. Bitter Dock. With the last. Common. 



9.5. FAGOPYRUM, Gsrtn. 



288. Fagopyrum (Lin.) Karst. Buckwheat. Belle Isle, waste places, etc. 



Rare. 



96. POLYGONUM, Lin. 



289. amphibium, Lin. Persicaria. Belle Isle canals. Common. 



290. Hartwrightii, A. Gr. On dry grounds on Belle Isle. Common. 



291. emersum (Mx.) Britton. With the last. Common. 



292. incarnatum, Ell. Low grounds on Belle Isle. Common. 



293. lapathifolium, Lin. Borders of canals on Belle Isle. Rare. 



294. A'ar. incanum (Schmidt) Koch. Near water on Belle Isle. Rare. 



295. nodosum, Pers. Waste places at Detroit. Common. 



296. Pennsylvanicum, Lin. Low grounds on Belle Isle. Common. 



297. Persicaria, Lin. Roadsides, etc., on Belle Isle. Common. 



298. hydropiperoides, Mx. Waterpepper. Grassy shores on Belle Isle. Rare. 



299. var. Macounii, Small. Borders of pools at Linden Park. Rare. 



300. Hydropiper, Lin. Smart-weed. Waste places Belle Isle, etc. Common. 



301. punctatum, Ell. Shores of Belle Isle. Common. ' 



302. orientale, Lin. Prince's Feather. Waste places at Detroit. Rare. 



303. Virginianum, Lin. Knotweed. Belle Isle woods. Common. 



304. aviculare, Lin. Knotweed. Roadsides on Belle Isle, etc. Common. 



305. littorale, Link. With the last. Common. 



306. Rayi, Babington. Roadsides on Belle Isle, etc. Rare. 



307. erectum, Lin. Roadsides on Belle Isle, etc. Common. 



308. Convolvulus, Lin. Bindweed. Waste places on Belle Isle, etc. Com- 



mon. 



309. scandens, Lin. Belle Isle and Palmer Park. Rare. 



310. sagittatum, Lin. Near Palmer Park. Common. 



• Order 15. Chenopodiales. 



FAMILY 28. CHENOPODIACE.E. Goosefoot Family. 



97. CHENOPODIUM, Lin. 



311. album, Lin. Pigweed. On Belle Isle. Rare. 



312. viride, Lin. On Belle Isle and elsewhere. Common. Also a low 



prostrate, spreading form, forming a patch often three feet in 

 diameter. Leaves under a half inch in length, not larger than those 

 of Chenopodium vulvaria; linear. 



313. leptophyllum (Moq.) Nutt. (?) A plant with a general habit and 



aspect of this species but the leaves are destitute of mealiness under- 

 neath. Perhaps a form of C. viride. W^aste places at Detroit. Rare. 



314. glaucum, Lin. Goosefoot. On Belle Isle, etc. Common. 



315. murale, Lin. Roadsides, etc., at Detroit. Frequent. 



316. hybridum, Lin. Waste places on Belle Isle, etc. Common. 



317. Botrys, Lin. Jerusalem Oak. Waste grounds at Detroit. Common. 



318. anthelminticum, Lin. Wormseed. Waste grounds at Detroit. Com- 



mon. 



319. vulvaria, Lin. Waste grounds at Detroit. Rare. 



98. BETA, Lin. 



320. vulgaris, Lin. Beet. Waste grounds at Detroit. Rare. 



