114 __ 



O, acanlis C«f ; ab hac 0, mraxacffolia Hortoi\ et 

 52&c7i?f hand differe. 



0. tetraptera Can. 



O, rosea ^iU 



0. tiiacirocarpa, Pursh. 



O. triloba Bart, 0. rhizocarpa Spr, - 



0. fruticosa Linn, 



0. glauca Mich, 



O, amhigua Nutt, 



O, Fraseri PursK 0. tetragona Rothy O, moth's 



GoMie. 



O, gracilis Schrad, An ab 0, riparia JVult, sdXis di- 



veraa? 



I 



O. pumHa Linn, 



Sect, II. MlocJiroa, Antlierae, Pollinia ct Stigmata iit 

 in sect, 1. Capsnla cylindracea vel apice iucrassata^ hand sul- 

 cata. Semina horizontalia, sursiim imbricata, oblonga, vix 



angiilata. Fiorcafla-d, dtifiorati rnfesceufes. 



O, odorata Sacq, 



0, villosa Thh, 



O, molUssima Linn, 



0, noctuvna Jacq, 



O. sinuata Linn, 



O, striata Ledeh, (nons«Hfl*a); O, mutahilis H. Paris^ 



0, chilensis H. Paris, Inter praecedejitem , cui habitn 

 et foliis accedit, et seqnentem, quacnm fnbo floram elongato 



convenit, media; tota pilis mollibns tecta. 



0, lotigijlora Jacq, 



Sect, HI. Onagra, Aniherae, Pollinia et Stigmata ut 

 in sect. I. Capsiila cylindracea, basin versns saepe incrassata, 

 plerumque sulcata, Semiiia horizontalia, angulata. Flores flavi. 



0. grandiJloYa Mt, et var. ^, 0, spectahiUs Horncm, 



O, biennis Linn, cum var, /S. O, gauroides "Rornem* 



