DIODECIA. ENNEANDRIA. Mercurialls. 315 
Eaem. Cal. amenti squama lacera. Cor. tubi- 
nata, Integra. Stigmata 4. Caps, supera, ' 
bilocularis, blvalvis, San. papposa. 
Flowers male and female in catkins on distinct 
plants. Calyx scales ragged. Bloss. tur- 
ban-shaped^ mouth entire^ slanting. Female 
Summit \-clefl. Caps. 2-celledi Seeds 
many^ downy. 
P. follis cordato-stibrotundis lobatis dentatls alba. 
subtus tomentoso-nlveis, arnentis ovatis. 
P. Leaves nearly triangular^ toothed and an* 
gular ; cottony underneath. 
fiUE AT WHITE POPL AR. ABELE-TRKE. Hedges, 
wood'?, and near brooks. T. March.. 
P. follis suborblculatis dentatls utrlnque gla- tremn* 
bris, peliolis compressis, ramulis hirtis. la, 
P. Leaves circular^ toothed and angular, smooth 
on both sides. 
ASP. ASPEN. TREMBf-lNG POPLAR. Moist 
woods, and in bo^gy grounil T. March, April. 
P follis deltoidib us acuminatis serratis utrin- nigra. 
que glabris. 
• P. Leaves trowel-shaped, tapering to a pointy 
serrated, smooth on both sides, 
liLACK POPLAR. Near rivers and wet shady places. 
T. March. 
VII ENNEANDRIA. 
AIERCULIARIS. S?nith. 1083. With. 392. 
Masc. Cal. trlpartitiis. Cor. nulla. Starn. 
—12. Antherce globosas, didymas. 
Ee 3 
