426 ONAGRACEAE 
l. E. hirsutum, L. (Fig. 6, pl. 103.) Harry WiLttow Hers. Plant, 
stout, branching, 3 to 5 ft. high, densely hairy. Some of the leaves op- 
‘posite, lance-shaped or oblong, sharply toothed, without leaf-stalks. 
Flowers in terminal clusters or in the axils of the upper leaves, about an 
inch broad, purple. Waste grounds. June-Sept. 
2. E. alpinum, L. Atrine Wittow Hers. (Z£. lactiflorum, Haussk.) 
Plant, from 6 to 12 in. high, not hairy. Lower leaves opposite, broadly 
elliptic or oval, slightly toothed, obtuse at apex, tapering to a leaf-stalk 
at base. A few of the upper leaves alternate and lance-shaped. Flowers 
few from the upper axils, small, white. Adirondack and White moun- 
tains. June-Sept. 
3. E. palustre, L. Swamp WitLtow Hers. Plant, slender, about 1 
ft. high, branched, with fine down; leaves lance-shaped, somewhat pointed 
at apex, rounded at base, without leaf-stalks, nearly all opposite. Flowers 
few, in upper axils, pink or whitish. Marshy places. White mountains 
and north. June-Sept. 
4. E. lineare, Muhl. (Fig. 2, pl. 103.) Linear-LEaveED WILLOW 
Hers. (EH. densum, Raf.) Plant, 1 to 2 ft. high, slender, usually branched. 
Leaves alternate or to some extent opposite, very narrow, 1 to 2 in. long 
by 1/12 as wide, sharply pointed at each end. Flowers pale pink, numer- 
ous. Bogs. July-Sept. 
5. E. molle, Torr. Downy Wittow Hers. (#. strictum, Muhl. £. 
densum, Raf.) Erect, 1 to 2 ft. high, somewhat densely covered with 
soft whitish hairs. Leaves lance-shaped, broader than those of No, 4. 
Flowers in upper axils, small, pink or whitish. Bogs, generally distributed. 
July-Sept. 
6. E. coloratum, (Muhl.) (Fig. 1, pl. 103.) PUuRPLE-LEAvED WILLOW 
Hers. Tall, branching, 1 to 3 ft. high. Leaves rather large, lance-shaped, 
distinctly toothed at borders, sharp pointed at apex, tapering at base, 
with leaf-stalk. Above, plant slightly downy. Flowers numerous in 
leafy clusters from the axils, pale purple. Wet places. July-Sept. 
7. E. adenocaulon, Haussk. (Fig. 3, pl. 103.) NorrHern WILLOW 
Hers. Differs little from No. 6, but leaves are less sharp at apex and the 
long seed capsules are covered with a dense growth of soft hairs. Wet 
places. July-Sept. 
8. E. Hornemanni, Reichenb. HorNeEMANN’s WiLLow Hers. Plant, 
not much branched, 4 to 14 ft. high; smooth. Leaves egg-shaped on 
short leaf stalks, with few remote teeth. Flowers in the terminal leaf 
axils, purple. White Mountains. July-Sept. 
5. ONAGRA, Adams 
Herbs, with erect stems, alternate leaves and yellow flowers which open 
in the evening. They are arranged in long slender clusters. The calyx 
is prolonged beyond the ovary and has 4 lance-shaped lobes. Petals 4. 
Capsule long, 4-sided, 4-celled, the ovules in 2 rows in each cell, compressed 
and angular. 
Flowers small, petals narrow about 1/12 in. broad . . . . . . Oj cruciata 
Flowers large, petals broad, 
Capsules. an inch: long’... sp 2a Wilesy cae oa yee ee 
Capsules more than an inch long . . . . . «© « « « O. Oakesiana 
