Botany of Illinois and Missouri. - on 
Epilobium coloratum M u 
Has. Banks of small streams near St. sie August. 
Acer saccharinum a in. 
Acer negundo Li 
Has. These two species are found on the alluvions of the 
Riviere des Peres and other streams. April. 
OCTANDRIA. TRIGYNIA. 
Polygonum punctatum Ell. 
Polygonum mite P ers. 
Polygonum pennsylvanicum L in. : 
Polygonum virginianum L in. 
Has.- The above species are quite common on the mar- 
gins of swamps near St. Louis. June—July. 
Polygonum aviculare L in. 
Polygonum convolvulus £27. 
Has. Near cultivated fields. July. In the latter spe- 
cies the lobes of the leaves are very acute 
Polygonum amphibium Lin 
Has. Margins of ponds. July. A distinot species from 
P, natans of Eaton. 
ENNEANDRIA. MONOGYNIA. 
Laurus sassafras L Si Ne 
urus Benzoin Li 
Has. Both — are quite sainaiat on the banks of 
the Illinois. March— 
DECANDRIA. MONOGYNIA. 
Cassia marilandica Lin, 
Has. Banks of creeks near St. Louis. July. 
Cassia chameecrista Lin. 
Has. Barrens and prairies west of St. Louis. June. 
Baptisia alba sie Brown P 
Has. High san sandy prairies, fr om St. Louis to otosi.— 
une. 
