AMMIACEAE 985 
A. villosa (Walt.) B. S. P. Plant 6—18 dm. tall: leaflets 2-5 em. long, the 
blades thickish, elliptic, see -aneeolate, or oval, 2-5 cm. long, serrate: 
umbel-r pos 2-5 em. long: pedicels 3-4 mm. | 
long: rolla white: fruit orbicular or 
orbieular obovate 4.5-5 mm. long, pubes- 
cent.—( ANGELICO.  HAIRY-ANGELICA.) —Dry 
thickets and woods, various Por vinees, Fla. 
Miss., Ark., Minn., and Con The leaves 
are used to en d the use of tobacco. 
A. Curtisii Buckl. Plant 6-18 dm. tall: 
lcadets with ovate or lanceolate, sharply 
serrate or incised, ee ate: umbel-rays 
: p — l 
eenis | 
long, glabrous. — (FILMY ANGELICA.) — 
Woods, mt. slopes and summits, Blue maae 
to Appalachian Plateau, N. C. to Pa. 
A. dentata (Cha apm.) Coult. & Rose. Plant 5-10 dm. tall: leaflets with 
ot liptie id e incised or incised-serrate blades, acute: umbel-rays 5-12; 
corolla : fruit oval, 5-6 mm. long.—Dry pinelands, Coastal Plain, M Fla. 
and a N | 
40. HERACLEUM L. Perennial herbs. Leaf-blades ternately compound. 
Umbels compound. Involucres and involucels of few, often deciduous, bracts 
and bractlets or the former wanting. als - à 
minute or obsolete. Petals white, broadest 
above the middle, those of the outer and 
inner flowers different in shape. Frui 
ually longer than broad, strongly dor- 
E flattened: earpels with the dorsal and 
eontiguous ribs slender, and broadly winged 
lateral ribs, the latter nerved near the outer 
edge: oil-tubes solitary in each interval, and 
2—4 in the outer face, rarely extending be- 
yond the middle of the carpel.—About 6 
species, natives of the Northern T A 
H. lanatum Michx. Plant course and heavy-scented, 6-25 dm. tall: leaf- 
blades 1—4 dm. long, the segments sharply toothe < us -rays imu stout, 
3—15 em. long: fruit oval to obovate-oval, 8-12 m —(Cow RSNIP. jm 
pow s fence-rows, fields, and waste-places, various min UM Ga. to Calif., 
„ Ont., and Newf. — Sum. — The roots and fruits are mechanic 
41. OXYPOLIS Raf. Perennial herbs. Leaf-blades pinnate or ternate, 
or rarely reduced to hollow septate phyllodia. Umbels compound. Involucres 
and involucels present. Sepals acute. Petals white. Fruit longer than broad, 
dorsally flattened: carpels with the dorsal and contiguous ribs thin, and 
winged lateral ribs, the latter nerved near ic inner part of the wing: oil-tubes 
solitary in the intervals and 2-6 in the inner face. [Ttedemannia DC.]—Five 
species, North American.—Sum.—fall or all year S.—Dropworts. 
