Agrostis Bourgaei Fourn. 
Scliaffneri Fourn. 
Scliiedeana Fourn. 
tacubayensis Fourn. 
tolucensis H. B. Kth. 
verticillata Vill. 
Virletii Fourn. 
Polypogon el^ngatus H. B. Kth. 
mexicanus Sclil. 
Deveuxia eriantlia II. B. Kth. 
triflora Xees. 
H.— Avéneas. 
Deschampsia elongata Munro. 
Trisetum bambusiforine Fourn. 
„ elongatum Kth. 
Trisetum gracile Fourn. 
Virletii Fourn. 
Avena fatua L. 
I.—Clorídeas. 
Microchloa indica (L.) 0. K. 
seta-cea R. Br. 
Cynodon dactylon Pers. 
(’liloris elegans H. B. Kth. 
ciliatiáí S\v. 
submutica H. B. Kth. 
virgata Sw. 
Bouteloua bromoides Lag. 
,. oligostachya Torr. 
polystachva Torr. 
prostrata Lag, 
.. racemosa Lag. 
tennis Wats. 
Buehloe dactyloides Engelm. 
