636 COMPOSITAE 
3. SCLEROLEPIS, Cass. 
Slender herbs, growing in water with linear leaves in whorls of 4 to 6 
and with terminal heads of small purplish flowers, all tubular. 
S. uniflora, (Walt.) Porter. (Fig. 6, pl. 169.) ScreroLepis. Stem 
simple, 1 to 2 ft. long, reclining at base. Leaves linear, 4 to 1 in. long, in 
whorls of 4s or 6s. Growing in shallow pools in southern part of our 
area. July-Sept. 
4. EUPATORIUM, L. 
Erect branching herbs, sometimes sprinkled with resinous dots, with 
opposite or whorled leaves (rarely alternate) and with flower heads in 
diffuse clusters. Flowers of the head all tubular, white, blue or purple. 
Involucre of overlapping bracts in several series. Beyond the tube of the 
corolla the style extends generally to a considerable extent, equal to the 
length of the tube or more or less. Aigrette of many soft bristles in a 
single row. 
Leaves in whorls of 3 to 6. 
Plant rough hairy . se ML? Gov lott! tel, ce! dey \ fas, Neate | aja ES wR AE 
Plant smooth, scarcely hairy Bh yen, iol ol hh a) ey Sy wes Res laa!) pean Nie 
Leaves opposite, 
The opposite leaves clasping the stem. 
Stem apparently passing through the united leaves . . E. perfoliatum 
The leaves not completely united at base . . . . . . SE. resinosum 
The opposite leaves not clasping the stem. 
Leaves on distinct leaf-stalks. 
Flowers white. 
eaves 3\-to6 ins Jong . 2 3 0 stl fo areranoraes 
eaves 1. to 24) 1p) long’. 4. Viel 2 «| ao) oe) -enaromarcnmn 
Flowers blue . . - £. coelestinum 
Leaves without distinct leaf- stalks (sessile) ; flowers” all white. 
Leaves lance-shaped, borders toothed. 
Tapering at base . 3 ie at! 1a acl Re en euGOl Erne 
Rounded or _ heart- shaped ‘at ‘base « @ «© as « «y SESSION 
Leaves lance-shaped, toothed at the apex . . . . E. altissimum 
Leaves egg-shaped. 
diwice\ as longyias wide) sw). 4 secu | oh + tp RD ECE EyS 
Not twice as long as wide. 
Plant ‘somewhat, -dowsty,'., =, « < 9.6 os. = See Seen 
Plant oS ae! hairy . . . . . . .« EE. verbenaefolium 
Leaves linear . . - « E, hyssopifolium 
Leaves nearly round, about as broad as long - . E. rotundifolium 
1. E. maculatum, L. (Fig. 12, pl. 171.) Sporrep Jor-pye WEEp. 
Stem simple or branched, 2 to 6 ft. high, often spotted with purple, rough. 
Leaves in whorls of 4 to 6, egg-shaped to lance-shaped with coarse teeth 
at margins. Flowers pink or purple. Moist places, New York and south- 
ward, <Aug.-Sept. 
2. E.purpureum, L. (Fig. 2, pl. 170.) Jor-pye Weep. TRUMPET 
Weep. Stem 3 to 10 ft. high, green or purple, usually smooth. Leaves 
in whorls, resembling No, 1, but teeth coarser. Flowers purple, pink or 
occasionally nearly white. Moist soil, throughout our range. Aug.-Sept. 
3. E. leucolepis, Torry and Gray. (Fig. 2, pl. 171.) Wouire-pracrep 
THOROUGHWoRT. Stem little or not at all branched, 1 to 2 ft. high. 
Leaves opposite, narrow lance-shaped, tapering at each end, margins en- 
tire or with quite low teeth, without leaf-stalks. Flower heads in a broad 
umbel-like cluster; flowers white. Moist places in southern part of our 
area. Sept.-Nov, 2 
