822 BULLETIN UNITED STATES GEOLOGICAL SURVEY. 



NYOTAGmACE^. 



473. OxybapJms Jiirsutus, Sweet. Var. 

 1874. July. Missouri Eiver. 

 *474. Oxyhafphus nyctagineus, Sweet. 



CHEIirOPODIACE^. 



*475. Chenopodium album, L. 

 476. Chenopodium leptophyUum. 



1874. August. Dry plains west of Frenchman's Creek. 

 *477. BUtum Bonus- Henricus, L. 

 *478. BUtum capitatum, L. 



479. BUtum glaucum, Koch. 



1874. August. Milk Eiver. 



480. Atriplex WuttalUi, Watson. 



1874. July. Missouri Eiver. 



481. Atriplex Undolepis, Watson. 



1874. August. Frenchman's Creek. 

 *482. Salicornia herbacea, L. 



483. Suceda depressa, Ledeb. 



1873. July. Pembina, dry plains. 



484. Sarcohatus vermiculatus, Torr. 



1874. July. Saline soil. West of Frenchman's Creek. 



AMAEANTACE^. 



*485. Amarantus retrojlexus, L. 



PAEONYCHI^. 



486. Paronychia sessiliflora, Nutt. 



1873. Sei)tember. Along Mouse Eiver, on dry banks. 



1874. August. Milk Eiver. 



POLYGONACE^. 



487. Polygonum ampliibium, L. 



1874. July. Frenchman's Creek. 

 *487'*. Polygonum amphibium, L., var. terrestre. 

 487^. Polygonum amphibium, L., var. aquaticum. 



1873. August. Mouse Eiver Plain, in wet places. 

 *488. Polygonum avicnlare, L. 



488^. Polygonum aviculare, L., var. erectum. 



1874, August. Base of Eocky Mountains. 

 *489. Polygonum cilinode, Mx. 



*490. Polygonum dumetorum, L. 

 *491. Polygonum hydropiperoides, Mx. 

 492. Polygonum lapathifoliuni, Ait., var. incanum. 

 1874. August. Frenchman's Creek. 



