160 
MONOECIA, TETRANDRIA. 
cylindrica. 
pumila. 
Betula Alnus, Sp. PI. 1394. 
Icon. Engl. Bot. 1508. 
Mder4ree. 
On the banks of creeks and other waters; rare. . April. 
S50. BCEHMERIA. Gen. pi. 1421. {Unices.) 
Masc. 4-parted. OoraMa none. JV*ec- 
tarij none. Fem. Calix and corolla none. 
Seed compressed. — Mutt. 
1, B. leaves opposite, ovate-oblong, acuminate, 
dentate, glabrous | flowers dioicous ; male spikes 
glomerate, interrupted, feminine cylindrical | 
stem herbaceous. — JVilld. 
Urtica cylindrica, L. and Mich. 
Icon. Sloan. Hist. Jam, 1. t. 82. f. 2. 
Anordinary looking plant, from eighteen inches to two feet 
high. In shady places along the margins of water courses ; not 
rare. Perennial. June, July. 
351. URTICA. Gen. pi. 1422. (Urtica.) 
Masc. CaZfa? 4-leaved. Corolla none. Mec- 
central^ mostly cyatliiform. Fem. Ca- 
lix 3-valved. Corolla none. Seed iy shin- 
ing. — M utt. 
1. U. leaves opposite, ovate-acuminate, three ner- 
ved, serrated ; lower petioles the length of the 
leaves; flowers monoicous, triandrous, capi- 
tate-corymbose, shorter than the petiole.^ — Willd. 
Felhicid JYettle. Rich Weed. 
A common looking plant, varying in size from two inches to 
fifteen. Leaves and stem shining, smooth, pellucid. Near 
springs and rivulets ; in shady damp places, and in moist woods 
near water-courses; every where abundant. Perennial. August. 
