236 



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G R A M I N E iE. [ Oryzops is. 



Hab. Plains of the Saskatchawan. Dru7mnond.—Dr Asa Gray has given the following amended character 

 of this species :— " P. culmo ca^spitoso simplici (spitham. et ultr.), foliis linearibus rigido-erectis pungeutibus. 

 panicula simpliciuscula pauciflora, ramis erectis subpatulisve, spiculis (magnis) acuminatis glabris, gluma in- 

 feriore flosculis quadruplo breviore 1 superiore eosdem subexcedente 7-nervi, hermaphrodito obtuso glabro 

 neutro bivalvi paulo minore.** 



7. P. viscidum. Ell. Fl. L 123. Kth. Agr. Syn. p. 107. 



Hab, Dry grounds of the Columbia, about Fort Vancouver. Douglas.— The specimens entirely accord 

 with those in my Herbarium, from Mr Nuttall and Dr Torrey, gathered in New Jersey. 



8. P. capillare, L,—Mx.—Ph.— Torr, FL p. 149. 



Hab. Saskatchawan. Dr Richardson. Drummond. Columbia. Douglas, 



10. OPLISMENUS. Kth. 



1. O. CruS'GallL Kth.— Vanicum, L,—E. Bot. p. 876. Torr, FL p. 140. Mx. 

 Ph. 



Hab. Canada. Mrs Sheppard. Marshy ground along the sea-shore, from " Cape Disappointment," to 

 the Straits of De Fuca, N. W. America. Douglas. 



2. 0. muricafus. Kth. Gram. I. L 44 Panicum. Mr.— P. hispidum. Mukl — Torr. FL 



p. 141. Grag, Gram, et Cyp, Part L n. 26.— P. Crus-Galli, 3. hispidum. EIL—V. 

 Walteri. Ph. 



Hab. Canada. Pursh. 



U. SETARIA. Beauv. 



1. S.glauca. Beauv.— Torr. FL 1. p. 152.— Panicum, L — Mx. Ph — Host, Gram 

 Austr. 2. p. 16. 



Hab. Saskatchawan. Dr Richardson. Drummond. 



.IV. Stipaceje. Kth. 



12. ORYZOPSIS. Richard. 



1. O. asperifolia. Rich, in Mx. FL 1.;?. 51. ^ 9. Ph — Torr. FL p. 71. 



Hab. Canada, to the Rocky Mountains. Dr Richardson. Drummond.— T\ie O. melanocarpa, Muht. 

 referred here by Kunth, is a very different plant from the Piptatherum nigrum of Torr. FI. 



2. 0. parviflora. NutL Journ. Ac. PhiL p. 79 — Stipa juncea. Mx — S. Canadensis. 

 Poir Ph.—Eick.App. ed.2.p.S Milium pungens. Torr. Fl. p. 78.— Urachne Cana- 

 densis. Torr. in Synop. FL ined. Gray, Gram, et Cyp. Part II. ?2. 114.— Uruchne bre- 

 vicandata. Trin. 



