182 Botany of Illinois and Missouri. 
Cercis canadensis Li 
Has. Inundated Peake, of streams in n Tllinois and Mis- 
souri—common. March—April. 
DECANDRIA. TRIGYNIA. 
ucubalus stellatus Lin. 
Has. Prairies, [llinois and Missouri. June. 
Silene regia. 
Stem erect, 2 or 3 feet high, branched, with tumid joints, 
and, as well as the whole plant, pulverulently pubescent and 
viscid, Leaves broad-ovate, opposite, scabrous; lower ones 
sub-clasping ; upper acuminate. Flowers scarlet, large, in 
pairs, or in threes, at the extremities of the branches, nume- 
yous. Calyx an inch long, cylindric, 10-striated. Petals 
oblanceolate, generally en 
as. Hills near the Potosi lead mines—rare, June. 
: Stellaria longifolia Muh 1. 
Has. Banks of the Riv. des Peres, May. 
DECANDRIA. PENTAGYNIA. 
Cerastium vulgatum 
Has. Fields—common i in these two ‘states. April, 
Cerastium nutans Ra 
Has. Rocky banks of streams. ay—June. 
: Oxalis violacea Li 
Has. Side hills on the Illinois dread. April. 
Oxalis corniculata Lin. 
a e eines siete Willd. 
as. Prairies—c May. ‘The former is about a 
foot long, PROeMAEER b batry: The flowers are smaller than 
those of the last. 
Penthorum sedoides J, i 
Has. Margins cH iiche and swamps, "St. Louis. June. 
(To be continued.) 
