REAL ON MICHIGAN FLORA. 95 



OXALIDACEJE Lindl. Wood-Sorrel Family. 

 OXALIS L. 



1360. 0. Acetosella L. Common Wood-sorrel. Macomb Co.; L. Sup. and north- 

 ward, A. Gray. .Rare in S. Peninsula. Th. 



1361. 0. corniculata L. Rochester, 0. A. Farwell. 



1362. 0. cymosa Small. Tall Yellow Wood-sorrel. Marquette Co., Burt's MS., 

 Rochester, O. A. Farwell. Southward. Common. 



*1363. 0. stricta L. Upright Yellow Wood-sorrel. Marquette southward. Common. 

 1364.- 0. violacea L. Violet Wood-sorrel. Winchell Cat.; S. W., H. S. Pepoon. 

 Rare. S. E. 



LINAGES Duinort. Flax Family. 



LINUM L. 



1365. L. humule Mill. Belle Isle, rare, O. A. Farwell. 



1366. L. medium (Planch.) Britton. Port Huron, C.-K. Dodge; Belle Isle, 0. A. 

 Farwell. 



1367. L. striatum Walt. Ridged Yellow Flax. S. W., H. S. Pepoon. 



1368. L. sulcatum Riddell. Grooved Yellow Flax. Dr. Wright; University Herb. 

 Rare. S. 



1369. L. usitatissimum L. Common Flax. Dr. Clark, and Dr. Wright; Keweenaw 

 Co., O. A. Farwell ; Alma, C. A. Davis. Escaped from cultivation. Infrequent. 



*1370. L. Virginianum L. Wild Yellow Flax. Ann Arbor, Dr. Lyons; S. Mich., 

 Wright Cat.; Lenawee Co., G. F. Comstock. Infrequent. S. 



RUTACE^ Juss. Rue Family. 



XANTHOXYLUM L. 



*1371. X. Americanum Mill. Northern Prickly Ash. Toothache-tree. Everywhere 

 along streams and on low ground. L. P. 



PTELEA L. 



*1372. P. trifoliata L. Hop-tree Shrubby Trefoil. Very abundant on the low, 

 rocky islands in the western end of Lake Erie, and frequent along river banks and 

 the shore of the Great Lakes. Occurs in the interior as far north as Montcalm Co. 

 Does not occur at Flint, and is not mentioned in Dr. Cooley's MS. Cat., but is given 

 in Dr. Wright, Alma, Ann Arbor, C. A. Davis. C. & S. 



SIMARUBACE^E DO. Ailanthus Family. 



AILANTHUS Desf. 



1373. A. glandulosa Desf. Tree-of -Heaven. Port Huron, C. K. Dodge; Detroit, 

 O. A. Farwell. 



POLYGALACE^E Eeichenb. Milkwort Family. 

 POLYGALA L. 



1374. P. ambigua Nutt. Loose-spiked Milkwort. P. verticillata ambiffua Wood. 

 Ypsilanti, Mrs. Lucy Osband; Port Huron, C. K. Dodge. 



1375. P. cruciata L. S. Mich., Wright Cat. Rare. S. 



1376. P. incarnate L. Pink Milkwort. Port Huron, Walpole Island, C.-K. Dodge. 

 Rare. 



*1377. P. paucifolia Willd. Flowering Wintergreen. Fringed Polygala. Common 

 on pine land. Th. 



