192 
DIOECIA, PENTANDRIA. 
sambucifolia, 1, F', folioles petiolated, oval, serrated, sessile ; 
Americana. 
tomentosa. 
aquatica. 
branches dotted.— Wich. f. 
Black-ash. Elder-leaved Ash. Water-ash. . 
A large tree, not unfrequent in the neighbouring woods. 
h. April. 
2. F. petioles very entire, long, acuminated, pe- 
tiolated, glaucous beneath.— Mich. f. 
F. discolor, Muhl. 
White Ash. 
A large and useful tree. In our woods, common. bh. May. 
3. EF. folioles about nine, dentated, petiolated; 
branches and petioles pubescent-tomentose.— 
Mich. f. 
Red Ash. Ash. 
The commonest species, well known by the name of Ash. 
h. May. 
Se 
ORDER V. PENTANDRIA. 
374. NYSSA. Gen. pl. 1599. (Eleagni.) 
HermapPHropitTe. Calix 5-parted. Corolla 
none. Pistil 1. Drupe inferior. Wut 4- 
seeded. Masc. Stamina 5, 8, 10 and 42, 
seated around a peltate gland.— Vutt. 
1. N. leaves ovate-oblong, very entire, acute at 
each end, glabrous; feminine peduncles 2-flow- 
ered ; berries short-ovate; nut obtuse-striate.— 
Willd. and Pursh. 
N. aquatica, L. and Mich. f. 
N. integrifolia, Ait. 
N. biflora, Mich. and Pursh. 

