160 UMBELLALES 
Leaves pinnate, flowers yellow. 
Leaflets lobed or incised, carpels wing-marginea. 
19. Pastinaca. 
Leaflets pinnatifid or parted, carpels with thick obtuse 
margins. 16. Polytaenia. 
Leaves ternate, leaflets very broad, fruit 8-12 mm. long, 
flowers white. 20. Heracleum. 
1. Sanicula. 672. 
Fruit 6 mm. long, petals and anthers greenish-white. 
1. S. marylandica. 
Fruit 4 mm. long, or less. 
Calyx lobes ovate, styles longer than the bristles, petals yellow. 
2. S. gregaria. 
Calyx lobes lanceolate, styles shorter than the bristles, petals 
white. 3. S. canadensis. 
1. Sanicula marylandica L. 
In woods mostly in the eastern part of the state. Harrison; Hastings; 
Indianola; Nebraska City; Weeping Water. 
2. Sanicula gregaria Bicknell. 
In woods and thickets mostly in the eastern part of the state. Lin- 
coln; Milford; Nebraska City; Ponca; Walton; Weeping Water. 
3. Sanicula canadensis L. 
In woods and thickets mostly along streams. Bordeaux; Lincoln; 
Plummer Ford; Sioux County; Red Cloud. 
2. Eryngium. 673. 
1. Eryngium aquaticum L. 
In wet places in the southeastern part of the state. Nemaha County. 
3. Washingtonia. (Osmorrhiza.) 675. 
Stylopodium and style 0.7-1 mm, long, fruit; not including the pedicel 
like base, 1-1.3 cm. long. : 1. W. claytpni. 
Stylopodium and style 2-4 mm. long, fruit 1.2-1.5 cm. long. 
2. W. longistylis. 
1. Washingtonia claytoni (Michx.) Britton. 
In woods mostly in the eastern part of the state. Fremont; Nehawka; 
Nebraska City; Ft. Niobrara; Ponca. 
2. Washingtonia longistylis (Torr.) Britton. 
In rich woods throughout the state, but most common in the eastern 
part. Anselmo; Glen; Long Pine; Saltillo; Sioux County; Weeping 
Water. 
4. Apiastrum. (Spermolepis.) 676. 
1. Apiastrum patens (Nutt.) Coult. & Rose. 
In sandy prairies in the eastern part of the state. Atkinson; Fair- 
bury; Neligh; Oreopolis; Riverton; St. Paul. 
