ocTANDRiA MONOGYKiA, Clarckia. 



Flores ex axillis superioribus, solitarii, subsessilcs, 

 magni, amoene purpurei. Calyx oenotherae. Petala 

 unguiculata, 3-partita, laciniis lateralibus divaricatis. 

 Stamina 4 : antheris linearibus, involutis : altera 4. 

 duplo breviora: antheris caslraiis, subrotundis. Stylus 

 longitudine fere petalorum. Stigma pallide luteum, 

 4-partitum : laciniis subrotundis. 



261 



338. OENOTHERA. Gen. pi. 63/. 



l.O, caule villoso scabro, foliis ovato-lanceolatis planis biennis. 



deritatis, floribus teroiinalibus subspicatis sessilibus, 

 staminibus corolla brevioribus. — IVi/ld. sp. pi. 2. 

 p. 306. 



Icon. Fl. dan. 446. Alp. exot. t. 324. 



Common in old fields : New England to Carolina. <J . 

 June, July. v. v. 



I have frequently observed a singularity in this plant, 

 and it might be interesting to make further inquiry 

 into its cause ; it is, that in a dark night, when no 

 objects can be distinguished at an inconsiderable di- 

 stance, this plant whf-n in full flower can be seen at 

 a great distance, having a bright white appearance, 

 which probably may arise from some phosphoric pro- 

 perties of the flowers. 



2. O. caule purpurascente muricato, foliis lanceolatis planis, muricata, 



staminibus longitudine coroUae. Willd. sp. pi, 2. 



p. 807. 

 Icon. Murray com. gcett. y.t.l. 

 In old tields and along fences : Pensylvania to Carolina. 



cJ, July, Aug. v.v. Flowers smaller than the first 



species. 



3. O. caule laevi subvilloso, foliis ovato-lanceolatis planis, 



staminibus corolla longioribus. Willd. sp. pi. 2. 



p. 306. 

 Icon. Mill. ic. ISQ. f. 1. Meerb. ic. 34. 

 In fields and woods: Canada to Virginia j rare. cj. 



July. V. V. 



4. O. caule glabriusculo ramoso, foliis ovato-lanceolatis grandzflora. 



glabris, staminibus declinatis. Willd. sp. pi. 2. p 306. 



In woods and fields of Carolina. Bartram. cJ. July. 



V. V. Flowers larger than any other of the North 



American species, and of an agreeable scent. 



5. O. caule diflfuso moUiter pubescente, foliis ovali-oblon- 



parvifloTU. 



smuata 



