32 H. J. Webber — 
72. HYPERICACEZ. 
181. HYPERICUM L. St. John’s-wort. 
296. H. CANADENSE L. Common in low grounds. Thedford, July 14 
(Webber). Ashland (Williams). HH. mutilum L. of Swezey’s 
Nebr. Fl. Plants p. 5, is probably to be referred here. 
297. H. cANADENSE L. var. Magus Gray. Wet Meadows. Saunders 
Co., Jane (Rydberg). Lowell, July 11 (Webber). 
298. H. vireinicum L. (Elodes virginica Nutt, and EZ. campanulata 
Pursh). Antelope Co. (Webber). 
73. GERANIACEE. 
182. ERODIUM L’ Her. Sterksbill. 
299. E. clcuTaRtuM (L.) L’Her. Alfilaria. Lincoln. Along sidewalks, 
probably introduced in hay. Adventive from Europe (Williams) . 
74, LINACEZ. 
183. LINUM L. Flax. 
300. L. RratpuM Pursh. Prairie flax. Very common on the prairies 
of central and western Nebraska. Superior, Brewster, Long Pine, 
Lewellen (Swezey); Deuel Co., July (Rydberg); Thedford, July 
14; Anselmo, July; Broken Bow, July; Belmont, Aug. (Webber). 
A form collected at Hat Creek Basin Aug. 2, Prof. Trelease 
notes as having the habit of var. puberulum Engelm. (Webber). 
301. L. usiraTissimum L. Cultivated Flax. Escaped to low prairies. 
Broken Bow, July (Webber). 
75. SAPINDACEAS. 
184. .ASCULUS L. Horse-chestnut, Buckeye. 
302. A. GLABRA Willd. Richardson and Pawnee counties (Bessey). 
76. EUPHORBIACEE. 
185. EUPHORBIA L. Spurge. 
303. E. CUPHOSPERMA (Engelm.) Boiss. <A few specimens collected 
Aug., 1890, in a canon running north from Lawrence Fork, Banner 
7 Co. 
Leaves lance linear, entire or with a few teeth on the rev- 
olute margin. Seeds short, triangular, truncate at the base, 
wrinkled aud tuberculate, with a minute caruncle. Belongs to the 
E, heterophylla group (Rydberg). 
304. E. reNpLERI Torr. & Gr. ‘ Sand draw,’’? Cheyenne Co., Aug. 
The seeds are described in Coulter’s Manual as irregularly 
punctate. Inthe original description in Pacific R. R. Rep. it reads 
‘a Jittle rugose transversely,’ which agrees with Nebraska 
specimens (Rydberg). 
