164 RUBIALES 
Leaves opposite with large foliaceaus stipules making them appear 
verticillate. ; 3. Galium. 
1. Houstonia. 860. 
1. Houstonia angustifolia Michx. 
In dry soil in the southeastern part of the state. Beatrice; Bellevue; 
Franklin; Indianola; Odell; Red Cloud; Wymore. 
2. Cephalanthus. 682. 
1. Cephalanthus occidentalis L. Button-bush. 
In wet soil along streams in the southeastern part of the state. Au- 
burn; Cedar Creek; West Point. 
3. Galium. 864. 
Fruits bristly. 
Leaves and stipules 6-8 in each whorl. 
Stems retrorsely hispid on the angles, fruits 4-6 mm. broad. 
1. G. aptrine, 
Stems nearly smooth, fruits 3-4 mm. broad. 4, G. tritiorum. 
Leaves 4 in each whorl. 
Leaves broad, 8-6 mm. wide, fruit 4 mm. wide. 2. G. circaezans. 
Leaves lanceolate, 2-6 mm, wide, fruit 2 mm. wide. 3, G. boreale. 
Fruits smooth. 
Leaves 4 in each whorl, 
Stems nearly glabrous, leaves 12-25 mm. long. 5. G, tinctorum. 
Stems rough, leaves 5-15 mm. long. 6. G. trifidum. 
Leaves 6 in each whorl. 7. G. concinnum. 
1. Galium aparine L. 
A common weed in woods and waste places throughout the state. 
Endicott; Pauline; Sioux County; Thedford; Valentine. 
2. Galium circaezans Michx. 
In eastern part of the state. Grand Island; Lincoln; Nemaha; 
Paddock. 
3. Galium boreale L, 
In the western part of the state often in dry rock soil. Belmont; Har- 
rison; Pine Ridge; Pumpkin Seed Valley; Wild Cat Mountain. 
4. Galium triflorum Michx, 
In woods mostly in the eastern part of the state. Belmont; Endicott; 
Mullen; Neligh; Ponca River; Wabash; Weeping Water. 
5. Galium tinctorum L, 
In woods and wet meadows in the southeastern part of the state. 
Newark; Weeping Water, 
6. Galium trifidum L. Small Cleavers. 
In shady woods and wet meadows over most of the state. Boelus; 
Cherry County; Gage County; Plainview; Ponca; Red Cloud; Thed- 
ford; Whitman. 
7. Galium concinnum Torr. & Gray. 
In woods in the southeastern part of the state. Nemaha; Weeping 
Water. 
