484 ONAGRACEAE. (Von. II. 
7. Epilobium paniculatum Nutt. Pan- 
icled Willow-herb. (Fig. 2574.) 
Epilobium paniculatum Nutt.; T. & G. Fl. N. A. 3: 
490. 1840. 
Annual, slender, 1°-2° tall, loosely branched, 
glabrous below, glandular-pubescent above. Leaves 
alternate, varying from linear to linear-lanceolate, 
1/-3/ long, acute, denticulate or nearly entire, at- 
tenuate into slender winged petioles, often invo- 
lutely folded; pedicels subtended by narrow bracts 
or bearing these some distance from their bases; 
calyx often purple, its tube funnelform, 1//-114// 
long, shorter than the lanceolate segments; petals 
cuneate, notched, 3//-4’’ long, violet; capsules as- 
cending, linear-fusiform, 10’7-15’/’ long, curved; 
seeds obovoid, 1/’ long, black, slightly papillose. 
Lake Huron to British Columbia, Colorado, Arizona 
and California. Summer. 
8. Epilobium coloratum Muhl. Purple-leaved Willow-herb. (Fig. 2575.) 
Epilobium coloratum Muhl.; Willd. Enum. 1: % } 
411. 1809. uy Vig 
Erect, much branched, bushy, 1°-3° high, 
more or less canescent above, with incurved 
hairs often arranged in lines, glabrate below. 
Stem and leaves often purplish; leaves gener- 
ally slender-petioled but sometimes sessile, 
lanceolate, acute or acuminate at the apex, 
narrowed at the base, sharply serrulate or den- 
ticulate, 2’-6’ long, 3/’-S’’ wide; flowers nu- 
merous in the axils, pink or white, 2’’-3’’ broad, 
generally nodding; stigma entire or merely 
notched; capsules short-peduncled, finely pu- 
bescent, 1/-2’ long, about 1/’ thick; seeds 
obconic-fusiform, beakless, papillose, less than 
1’ long; coma reddish-brown. 
In low grounds, Maine to Ontario, Wisconsin, 
Nebraska, South Carolina, and Missouri. As- 
cends to 2v00 ft. in Virginia. July-Sept. 
2) /1 
g. Epilobium adenocaulon Haussk. 
Northern Willow-herb. (Fig. 2576.) 
Epilobium glandulosum Yehm. in Hook. Fl. 
Bor. Am. 1: 206. 1833? 
Epilobium adenocaulon Haussk. OEst. Bot. Zeit. 
29:119. 1879. 
Closely resembling the preceding species, 
but the inflorescence and capsules glandular- 
pubescent. Leaves lanceolate or ovate-lan- 
ceolate, obtusish or sometimes acute, sparingly 
serrulate or denticulate, seldom over 214’ long; 
flowers usually nodding at first; seeds ob- 
ovoid, abruptly short-beaked, about %4’/ long, 
papillose; coma white. 
In moist grounds, New Brunswick to Oregon, 
south to Massachusetts, Pennsylvania, Iowa, 
Utah and California. Ascends to 4ooo ft. in the 
Adirondacks, July-Sept. 
