380 DICECIA OCTANDRIA. [CL. XXII. 



shaped, spreading, downy; stigmas simple. Seed one. Name 

 from humus, rich soil. 451. 



1. H. Lupulus. Common Hop. Stems herbaceous, twining, 



branched, angular, rough : leaves opposite, stalked, heart-shaped, 

 serrate, veined, rough: flowers pale- green. The properties of the 

 cones are well known. Perennial: flowers in July: grows in 

 thickets and hedges, but is not indigenous. Eng. Bot. vol. vi. 

 pi. 427. Eng. Fl. vol. iv. p. 288. 1443. 



HEXANDKIA. 

 8. TA'MUS. BLACK BRYONY. 



Barren Flowers. Calyx none. Corolla regular, with six 

 deep, broadly lance-shaped segments, their upper part spread- 

 ing. Filaments six, awl-shaped, equal, shorter than the co- 

 rolla ; anthers roundish. 



Fertile Flowers. Calyx none. Corolla regular, six-cleft, 

 superior, deciduous. Germen inferior, between egg-shaped, 

 and oblong, large, smooth. Style cylindrical, as long as the 

 corolla; stigmas three, acute, spreading. Berry oval, three- 

 celled. Seeds two in each cell. Name of doubtful origin. 452. 



1 . T. communis. Common Slack Bryony. Leaves heart-shaped, 

 undivided. Root large, fleshy: stems twining : leaves bright- 

 green: flowers greenish- white : berries scarlet. Perennial: 

 flowers in June : grows in hedges and woods, in England : fre- 

 quent. Eng. Bot. vol. ii. pi. 91. Eng, Fl. vol. iv. p. 241. 1444. 



OCTANDRIA. 

 9. PO'PULUS. POPLAR. 



Barren Flowers. Catkin oblong, loosely imbricated, cylin- 

 drical. Calyx a one-flowered, wedge-shaped, flat scale, jagged 

 at the edges. Corolla of one petal, turbinate beneath, tubular, 

 dilated and obliquely cup-shaped above. Filaments eight or 

 more, hair-like, very short ; anthers large, four-cornered. 



Fertile Flowers. Catkin, calyx, and corolla, as above. Ger- 

 men superior, egg-shaped, pointed. Style none ; stigmas four 

 or eight, awl-shaped. Capsules egg-shaped, two-valved, one- 

 celled. Seeds numerous, small, egg-shaped, downy at the top. 

 Name populus, people, it being by the Romans esteemed the 

 tree of the people. 453. 



1. P. alba. White Poplar. Abele Tree. Leaves nearly trian- 

 gular, somewhat heart-shaped at the base, toothed, cottony be- 

 neath ; fertile catkin egg-shaped ; stigmas four. A tall tree, 



with smoothish bark and horizontal branches : leaves three- lobed : 

 flowers in March : grows in moist woods : common. Eng. Bot. vol. 

 xxiii. pi. 1618. Eng. Fl. vol. iv. p. 243. 1445. 



2. P. canescens. Grey Poplar. Leaves roundish, deeply waved, 



