446 DIOECIA PENTANDRIA. 



F. acuminata : leaflets petiolate, oblong, shining, acuminate, very entire, 

 or slightly toothed, glaucous beneath ; flowers calyculate. 



HAB. Woods. May. A large tree ; first leaves downy ; summer 

 leaves green above, white beneath. 



TRIANDRIA. 

 401. MYRICA. Gale. 



M. Gale : leaves lanceolate, broader above, serrate ; sterile ament imbri- 

 cated ; scales acuminate, ciliate ; fruit scaly capitate. 



HAB. Borders of ponds and about mountain lakes. May. Shrub 3 

 4ft. high ; fruit spicy. 



M. cerifera: leaves cuneate-lanceolate, with a few serratures at top^ 

 acute ; sterile aments loose ; scales acute ; fruit spherical, naked, dis- 

 tinct. 



HAB. Dry woods and copses. May. Shrub 2 6 feet high ; fruii 

 small, covered with wax. 



PENTANDRIA. 

 402. NYSSA. Tupelo. 



N. villosa: leaves oblong, very entire, acute at each end, the petiole, mid 

 rib, and margin villous ; fertile peduncles 3 6-flowered ; nut short ob 

 ovate, obtusely striate. 



HAB. Low woods. June. A large tree ; branches horizontal ; flow- 

 er small, green ; drupe dark blue. 



403. ZANTHOXYLUM. Tooth-ach tree. 



Z. fraxineum : prickly ; leaves pinnate ; leaflets oval-lanceolate, suben- 

 tire, sessile, equal at the base ; petioles unarmed ; umbels axillary. 



HAB. Rocky woods. April. Shrub 3 5 feet high ; prickles strong , 

 leajlets 4 5 pairs. 



404. ACNIDA. Wild-hemp. 



A. cannabina: leaves ovate-lanceolate; capsules smooth, acutely an- 

 gled. 



HAB. Salt marshes. July Aug. <v) ; stem 2 4 feet high, smooth 

 leaves alternate ; Jlower small, green. 



405. HUMULUS. Hop. 



H. L/upulus. 



HAB. Hedges, &c. Aug. 1\. ; stem twin, scabrous ; leaves opposite 

 ?> -i)-ivuf.d t rough; Jlower green. 



