22 APOCYNACEAE. Vor. ILI. 
3. Apocynum Milleri Britton. Miller’s 
Dogbane. Fig. 3378. : 
Apocynum Milleri Britton, Manual 739. 1901. 
Stem slender, 3° high or less, the branches 
spreading. Leaves oblong to ovate-lanceolate, 
24’-32’ long, pubescent beneath, the pubescent 
petioles 13’—3” long; cymes small, terminal or 
also in the upper axils, the pedicels 1-13” 
long; flowers nearly erect; corolla pinkish, 
24’-3” long, its rounded segments spreading, 
much shorter than the tube, which is longer 
than the ovate calyx-segments; follicles about 
4’ long. 
Dry soil, New York to Maryland and the Dis- 
trict of Columbia. June-July. 
4. Apocynum cannabinum L. Indian Hemp. 
Amy-root. Fig. 3379. 
Apocynum cannabinum L, Sp. Pl. 213. 1753. 
A, cannabinum glaberrimum DC, Prodr. 8: 439. 1844. 
A. nemorale G. S. Miller, Proc. Biol. Soc. Wash, 13: 87. 
1899. 
Apocynum urceolifer G. S, Miller, loc. cit. 
Root deep, vertical, soon branching. Stem exten- 
sively branched, the branches erect or ascending, 
glabrous or nearly so, more or less glaucous. Leaves 
oblong, lanceolate-oblong or ovate-oblong, acute or 
obtuse and mucronate at the apex, narrowed or 
rounded at the base, glabrous above, sometimes pu- 
bescent beneath, 2’-6’ long, 4’-3’ wide; petioles 1-6” 
long, or sometimes none; cymes dense; pedicels 
short, bracteolate at the base; calyx-segments about 
as long as the tube of the greenish-white corolla; 
corolla-lobes nearly erect; follicles similar to those 
of the preceding species. 
In fields and thickets, Connecticut to Wisconsin, Ala- 
bama, Tennessee, Missouri and Kansas, perhaps extend- 
ing farther north. Rheumatism-root. Wild cotton. 
5. Apocynum sibiricum Jacq. Clasping- 
leaved Dogbane. Fig. 3380. 
A. sibiricum Jacq. Hort. Vind. 3: 37. pl. 66. 1776. 
A, hypericifolium Ait. Hort. Kew. 1: 304. 1780. 
A. cannabinum var. hybericifolium A, Gray, Man. 
365. 1848. : 
Apocynum album Greene, Pittonia 3: 230. 1897. 
Lh Aes ,Clabrous, pale green, often glaucous; stem 
WARN, “Zz 1°-2° high, the branches ascending. Leaves ob- 
i long, oblong-lanceolate to oval, 1’-3’ long, 4’-14’ 
wide, obtuse or acutish at the apex, cordate- 
clasping, rounded, truncate, or most of the upper 
narrowed at the base, short-petioled, or sessile, 
the primary venation forming broad angles with 
the midvein; cymes many-flowered, dense to 
loose; pedicels mostly not longer than the flow- 
ers, bracteolate; calyx-segments about as long as 
the corolla-tube, lanceolate, acute; corolla-lobes 
nearly erect; follicles 2’-33’ long. 
Mostly along streams, Quebec to British Coiumbia, 
Long Island, Ohio, Kansas and New Mexico. St. 
John’s-dogbane. June-Aug. 
TREN 
Sk 
QS 
Ae 
