JULY, 1900. BENNETTS— ADDITIONS TO THE FLORA OF MIL. CO. 165 
800 Ranunculus Pennsylvanicus, L. Bristly Buttercup. Near a tam- 
erack swamp by New Coeln. 
801 Ranunculus acris, L. Tall Buttercup. Menomonee Valley and 
waste places on the West Side. 
802 Ratibida columnaris, (Sims.) D. Don. Prairie Cone Flower. Wau- 
watosa near the pumping station of garbage plant. 
80U Rhamnus cathartica, L. Buckthorn. Escaped from hedges near the 
Lisbon road in Township of Wauwatosa. 
804 Ribes rubrum, L. Red Currant. Dr. S. Graenicher has found this 
species in the Menomonee Valley near the Wells Street viaduct 
also in a woods west of Soldiers' Home. 
805 Rosa rubiginosa, L. Sweetbrier. I have found this rose growing 
in a meadow along Oak Creek, also along fences near the Lisbon 
Road. 
806 Salix Bebbiana, Sarg. Bebb's Willow. Occasional throughout the 
county. 
807 Salix Candida, Pluegge. Hoary Willow. In a former tamerack — 
S. W. quarter of Section 22, Town of Oak Creek. 
808 Salix Babylonica, L. Weeping Willow. Occasionally this species 
or some of its varieties is found growing wild. 
809 Salix discolor, Muhl. Glaucous Willow. Our earliest blossoming 
willow, common in moist places throughtout the county. 
810 Salix nigra. Marsh. Black Willow. One of our commonest wil- 
lows. 
811 Salix nigra falcata (Pursh), Torr. Occasional throughout the 
county. 
812 Salix amygdaloides, Anders. Peach-leaved Willow. Very com- 
mon in swamps. 
818 Salix pentandra. Occasionally found growing wild. 
814 Sambucus pubens, Michx. Red Elder. In the southwest part of 
the county— rare. 
815 Salsola Tragus, L. Russian Thistle. Rapidly spreading and 
monopolizing waste places and vacant lots around the city 
especially where the sod has been removed. 
816 Scirpus Americanus, Pers. Perine's Woods on the Milwaukee 
River. 
817 Sisymbrium altissimum, L. A common weed in some parts of 
the city. 
818 Silene vulgaris (Moench), Garcke. Bladder Campion, I found 
a few plants growing along the Janesville Road about three 
miles from the city in 1897. 
819 Silphium perfoliatum, L. Indian Cup . Common along the MUk- 
v/onago Road about a mile S. W. of North Greenfield. 
820 Smilax ecirrhata, S. Wats. Upright Smilax. Frequent throughout 
the county. 
821 Solanum rostratum, Dunal. Sand Bur. Waste places and Rail- 
way tracks — occasional. 
822 Solanum triflorum, Nutt. Cut-leaved Nightshade. Along Rail- 
way tracks in the Menomonee Valley near the Sixth Street 
viaduct. 
