URTICACEAE . 433 
acute; petioles 35 as long as the blades, or 
more: achene about 2 mm. iuc m od foc 
ETTLE. 
various provinces, Fla. to Calif., Sor Y, and 
Newf.—Nat. of Eu.—(W. I.)—S8 —fall. 
2. chamaedryoides Pursh. em and 
branches 1-10 dm. tall: leaf-blades ovate- 
hickets, Coastal Plain and adj. 
modus. | Fla. to Tex, Ark, and Ky.— 
r.-sum.. 
acilis Ait. Stem 6-28 dm. tall: 
ee blades lanceolate, occasionally med so, 6-15 cm. long, ned 
serrate: sepals hi [is lous: achene fully 1 mm. long.— (TALL WILD-NETTLE.) 
— e-rows and river-banks, mire provinces, N. C. to La., B. C;, Ont., ee 
fall. 
4, pega L. aad bmi dm. tall: leaf-blades ovate to ovate-lanceolate, 
3—1 ong, pro ntly incised-serrate, cordate, sometimes: deeply so: 
V. ae chiepidalous: ener fully 1 mm. long.—(STINGING-NETTLE. Um 
Md a and Mic ha various provinces, S. C. to Mo., Minn., and N. S.— 
Nat. of Eu.—Sum.—fal 
3. ADICEA Raf. Annual or perennial erect succulent herbs. Leaves 
inly opposite: blades toothed, 3-ribbed. Flowers dioecious. Sepals of the 
vistillata flowers 3, nearly equal, slightly 
broader and more or less hooded at the 
a j tigma 
tufted.—One species in the United ps 
perhaps others in tropical Americ 
1. A. pumila (L.) Raf. Stem 1-7 dm. tall, 
translucent, watery: leaf-blades ovate to 
elliptic, 3- 10 em ong, coarsely crenate- 
CHURLE-HEMP. 0- 
TING. COOLWEED:)—Moist ae and cool __ 
shaded places, various provinees, Fla. to La., Minn., and N. H.—Sum.-fall. 
4. PILEA Lindl. Depressed, often creeping, succulent herbs. Leaves 
mainly: alternate: blades entire, l-ribbed. Flowers monoecious. Sepals of 
the pistillate flowers 3, very unequal, 2 of them flat, the thir rd one much 
larger, helmet-like, often enclosing the achene. Sema tufted.—About 200 
species, mostly tropieal. 
dic E sessile in the leaf-axils or nearly so, very short: plants mostly monoe- 
Leaf-blades Ver icular to oval-orbicular or ee less than twice 
as long: as wide,. long-petioled. . P. herniarioides. 
Leaf-blades elliptic, viene AL or obovate, over twice 
ong as wide,. short-petioled. 2. P. microphylla. 
