Mar., 1915.] 
Onagraeeae of Ohio. 
465 
3. Chamaenerion (Tourn.) Adans. 
Perennial herbs with alternate, entire leaves, densely set on 
the stem; flowers showy, in terminal racemes; sepals 4, purple, 
linear, deciduous; petals 4 ovate, stamens S, stigma 4-parted; 
capsule angled, dehiscent opening longitudinally, seeds tufted. 
1. Chamaenerion angustifolium (L.) Scop. Fire-weed. 
Erect herbs Ip 2 -S ft.; leaves lanceolate, entire, D^-5 in. long; 
flowers purple or white about 1 in. broad, capsules l>d-2 in. long, 
slender, white pubescent. Ashtabula, Stark, Lake, Medina, Erie, 
Cuyahoga, Williams, Summit, Geauga, Lorain, Defiance, Fulton. 
4. Epilobium L. 
Herbs with opposite or alternate leaves; flowers solitary, 
spicate, or racemose; calyx deciduous, 4 parted; petals 4, stamens 
8, capsule long, slender 4-sided dehiscent longitudinally; seeds 
tufted with hairs. 
1. Leaves entire, margins revolute. 2. 
1. Leaves denticulate or serrulate; margins not revolute. 3. 
2. Leaves narrowly linear, less than Yg in. wide, veins obscure; entire plant 
covered with white incurved hairs giving it a gray green appearance. 
E. lineare. 
2. Leaves lanceolate Y in. or more wide, veins evident; glandular pubescent 
hairs spreading. E. strictum. 
3. Leaves narrowly lanceolate, 2-6 in. long; seeds obconic, beakless; coma 
red-brown. E. coloration. 
3. Leaves ovate-lanceolate, rarely over 2 Y 2 in- long; seeds ellipsoid, 
short-beaked; coma white. E. adenocaulon. 
1. Epilobium lineare Muhl. Linear-leaf Willow-herb. 
Erect, perennial, much branched herbs 1-2 ft. high, the entire 
plant covered with white incurved hairs; leaves linear in. 
long, opposite or alternate, entire, margin revolute; flowers pink 
or white in the axils of upper leaves of the branches; capsules 
about 2 in. long. Erie, Clarke, Portage, Ottawa. 
2. Epilobium strictum Muhl. Downy Willow-herb. 
Erect herbs 1-3 ft. high, pubescent with white spreading hairs: 
leaves sessile, lanceolate, }4-2 in. long, opposite or alternate, 
entire, flowers in the axils of the upper leaves of branches, Yi in. 
broad, pink or white; capsules about 2 in. long. Licking County. 
3. Epilobium coloratum Muhl. Purple Willow herb. Erect, 
branched herb, 1-3 ft. tall, somewhat canescent, often purplish; 
leaves narrow lanceolate, sharply dentate 2-6 in. long; flowers 
many, axillary, pink and white about pi' in. broad, seeds obconic, 
bcakless; coma reddish-brown. General. 
4. Epilobium adenocaulon Haussk. Northern Willow-herb. 
Resembling the above species but leaves broader and rarely 
exceeding 2]/ 2 in. in length; seeds obovoid, short-beaked; coma 
white. Cuyahoga, Ashtabula, Defiance, Erie, Medina, Ottawa, 
Summit, Franklin. 
