DIOECIA DIANDRIA. 445 



S. recurvata : leaves obovate-lanceolate, acute, very entire, smooth, glau- 

 cous beneath, silky when young ; stipules ; aments recurved ;' scales 

 black at the tip, with hairs as long as the ovate, silky, and subpedicel- 

 late germen ; style very short ; stigmas bifid. 



HAB. Shady woods. Shrub % 3 feet high ; branch, brown, smooth; 

 buds yellow. 



S. conifera : leaves oblong-lanceolate, remotely serrate, acute, smooth 

 above, tomentose beneath; stipules lunate, subdentate ; scales lanceo- 

 late, obtuse, villous ; germens pedicellate, lanceolate, silky ; style bifid 

 stigmas 2-lobed. 



HAB. Low thickets. April. Shrub 4 8 feet high ; frequently with 

 excrescences on the branches. 



* * * Leaves closely and acutely serrate. 



S. nigra : leaves lanceolate, acute at each end, serrulate, green on both 

 sides, smooth, except the petiole and the midrib above ; stipules den- 

 tate ; aments cylindric ; scales oblong, very villous ; filaments 3 6, 

 bearded at the base; germens pedicellate, ovate, smooth; style very 

 short ; stigmas bifid. 



HAB. Banks of rivers. May. A small tree; branches smooth ; first 

 leaves pubescent ; aments long. 



S. lucida : leaves ovate-lanceolate, long-acuminate, rounded at the base, 

 serrate, smooth on both sides, shining ; stipules oblong, serrate ; aments 

 triandrous ; scales lanceolate, obtuse, hairy at the base, serrate and 

 smooth at the tip ; germens lanceolate-subulate, smooth ; style bifid ; 

 stigmas obtuse. 



HAB. Swamps. May. A small tree; leaves thick; branch, yellow- 

 brown ; aments late. 



S. cordata : leaves oblong-lanceolate, acuminate, cordate at the base, 

 acutely serrate, smooth ; stipules large, ovate-roundish, serrate ; sta- 

 mens 3 ; scales lanceolate, (black ;) germens pedicellate, lanceolate, 

 smooth ; style very short ; stigmas bifid. 



HAB. Swamps. April May. A shrub 6 8 feet high; leaves large, 

 1 inch broad. 



S. grisea: leaves lanceolate, acuminate, serrulate, smooth above, silky 

 or naked beneath ; stipules linear, deflexed, deciduous ; scales oblong, 

 hairy, black at the tip ; germens oblong, pedicellate, silky ; stigmas 

 sessile, obtuse. 



HAB. Low bushy places. April. Shrub 6 8 feet high; branches 

 purple, brittle at base. 



S. vildlina: leaves lanceolate, acuminate, with thickened serratures, 

 smooth above, paler and somewhat silky beneath ; stipules ; amenta 

 cylindrical, scales ovate-lanceolate, pubescent outside ; germens sessile, 

 ovate-lanceolate ; stigmas subsessile, 2-lobcd. 



HAB. Roadsides, &c. May. A pretty large tree; bark and twigs 

 yellow. . 



400. FRAXINUS. Ash. 



P. sambucifolia : leaflets sessile, ovate-lanceolate, serrate, rugose and 

 shining ; base rounded and unequal ; axils of the veins villous be- 

 neath ; flowers naked. 



HAB. River banks and woods. April. A large tree ; buds deep blue ; 

 -jonns shoots dotted, green. 



