MONOECIA, TETRANDRIA. 
159 
length 6-leaved. Corolla none. Styles 2. 
JS*ut oval, 1 -celled. — JV*utt. 
1. C. leaves long-linear, alternately crenate-pin- aspienifoiia. 
n atifid . — Willd. 
Liquidambar peregrinum, Syst. Veg, 860. 
L. asplenifolium, Sp. PI. 1418. 
Icon. Bart. Yeg. Mat. Med. U. S. vol. 1. 1. 19. 
Sweet Fern. Fern-leaved Gale, <^'C. 
About two feet high. Whole plant possessing a fine aro- 
matic, resinous odour. Possesses medicinal properties. (See 
Bart. Veg. Mat. Med. U. S.) In Jersey, on the borders of 
woods ; very common. On the high banks of the Wissahick- 
on, abundant. Perennial, April. 
ORDER IV. TETRANDRIA. 
349. ALNUS. Wiildenow. Sp. pi. 4. p. 334. {^Amentacex .') 
Masc. Ament composed of 3-flowered^ cu- 
neiform truncated receptacles. Calix the 
scales of the ament. Corolla 4- parted. Fem. 
Calix scales 3-flowered. Corolla none. 
Seeds compressed^ ovate^ apterous. — JV* utt. 
1. A. leaves obovate, acuminate; veins and axitis sermiata, 
of the veins hairy underneath; stipules ellipti- 
cal-obtuse. — Willd. 
Betula serratula, Ait. 
B. rugosa, Ehrh. 
Icon. Mich. f. Arbres forest, vol. 3. p. S£0. t. 4. 
Common Jllder. Candle Alder, Ha%el Alder. 
A shrub from five to twelve feet high, growing in great 
quantities along the margins of all our waters, and in swamps. 
It is said to possess medicinal properties. I 2 • March, April. 
2. A. leaves subrotund-cuneate, obtuse, subretuse, giminosa? 
glutinous; axills of the veins villous beneath. — 
Willd. 
