92 PRIMULALES 



1. Urtica dioica L. Stinging nettle. 



Reported from Weeping Water. 



2. Urtica gracilis Ait. Slender Nettles. 

 Throughout the state, common in woods and thickets. Keya Paha 

 County; Lincoln; Mullen; Plummer Ford; Red Cloud; Republican; 

 Walton. 



2. Urticastrum. 342. 



1. Urticastrum divaricatum (L.) Kuntze. Wood nettle. 



Laportea canadensis (L.) Gaund. 

 Common in woods in the eastern part of the state. Endicott; Lincoln; 

 Neligh; Saltillo; Valentine. 



3. Adiceae. 343. 



1. Adiceae pumila (L.) Raf. Clear weed. 



Pilea pumila (L.) Gray. 

 In wet shady places in the eastern part of the state. Burwell; Endi- 

 cott; Fremont; Gage County; Lincoln; Long Pine; Mullen. 



4. Boehmeria. 343. 



1. Boehmeria cylindrica (L.) Willd. False nettle. 



In wet shady places throughout the state, except the extreme western 

 part. Boelus; Callaway; Kearney; Nattick; Pishelville; Sargent; 

 Simeon. 



5. Parietaria. 343. 



1. Parietaria pennsylvanica Muhl. Pellitory. 



In dry woods and thickets throughout the state. Belmont; Callaway; 

 Long Pine; Lincoln; Weeping Water; Red Cloud; Valentine. 



SUBCLASS HETEROMERAE. 

 PRIMULALES. 



Sepals and corolla lobes usually 5 or more, corolla normal, capsule 

 circumscissile only in Anagallis and Centrunculus, 



1. Primulaceae. 

 Sepals and corolla lobes 4. corolla scarious. capsule circumscissile. 



2. Plantaginaceae. 



1. PRIMULACEAE. 

 Corolla not refiexed. 



Capsule not circumscissile. 



Scapose plants with white or pink flowers. 1. Androsace. 



Leafy-stemmed plants, with yellow flowers. 



Flowers solitary in the axils. 2, Steironema. 



Flowers in axillary spike-like racemes or heads. 3. Naumbergia. 

 Capsule circumscissile. 



Flowers on peduncles over 1 mm. long. 4. Anagalis. 



Flowers sessile or nearly so. 5. Centrunculus. 



Corolla refiexed. 6. Dodecathion. 



