‘ 
248 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
61. HERACLEUM IL.. Sp. Pl. 1: 249. 1753. 
Calyx teeth small or obsolete. Fruit broadly oboyate, very much flat- 
tened dorsally, somewhat pubescent. Carpel with dorsal and intermedi- 
ate ribs filiform: the broad lateral wings contiguous to those of the 
other carpel, strongly nerved toward the outer margin; strengthening 
Fig. 64.—Heracleum lanatum: a,b, & 4, 
flowers, and obcordate petals ( 
cells continuous about seed 
cavity and under the nerves. 
Stylopodium thick conical. 
Oil tubes solitary in the in- 
tervals, conspicuous, about 
half as long as the carpel, 
2 to ton the commissural 
side. Seed very much flat- 
tened dorsally. 
Tall stout perennials, 
with large ternately com- 
pound leaves, deciduous 
involucres, involucels of 
numerous bractlets, large 
many-rayed umbel of white 
the outer ones often dilated and 2-cleft). 
First species cited, 7/eraclewm sphondylinm Li. 
A genus of about 60 species, belonging to the northern hemisphere, 
represented in North America by a single species, 
1. Heracleum lanatum Michx. FI. Bor. Am. 1: 166. 1803. Fra. 64. 
Very stout, 12 to 244 dm, high, pubescent or woolly above; petioles 
much dilated; leatlets petiolulate, reind-cordate, 10 to 25 em. broad, 
irregularly cut-toothed; rays 5 to L5 em, long; fruit 8 to 12 mm. long, 
somewhat pubescent. 
Type locality, ‘* Canada.” 
Wet ground, from Canada to North ( 
‘arolina and Tennessee. and 
extending westward to New Mexico, California. and Alaska. 
Specimens examined: We cite but few of the numerous sheets examined of this abun- 
dant and widespread species. 
Vermont: Peacham, Alice Sterens, August 5, 1892. 
Massacituserts: Ipswich, Oukes. 
Connecticut: Fairfield, Hanes, Jane I4, 1894, 
New York: Ithaca, Unir. Coll., June, 1875. 
PENNSYLVANIA: Lancaster, Nia//, June 4, 1889. 
Nort Carotina: Roan Mountain, altitude 1,800 meters, Merriam, September 1, 
1892. 
TENNESSEE: Cocke County, Kearney 707, August 28, 1897. 
Onto: Lancaster, Bigelow. 
Iowa: Grinnell, Jones, June 19, 1877. 
South Dakora: Black Hills, Rydberg, altitude 1,200 meters, June 28, 1892. 
NEBRASKA: Newcastle, Clements, in 1893. 
CoLtorapo: Mancos, Baker, Karle, & Tracy 580, July 9, 1898. 
