7<5 IOWA ACADEMY OF SCIENCES. 



(273) Uenchrus echinatus. College Station, Brazos couuty. Waste places. 



(273) Rottbcellia cylindrica. College Station, Brazos county. Dry, sandy 

 soils. 



(374) Andropogoii furcatus, Muhl. College Station, Brazos couuty; 

 Melissa, Collin county. Common. 



(275) A. saccharoides . College Station, Brazos county.. Common in cen- 

 tral Texas. 



(276; Sporobolus indicus. R. Br. College Station. Common. 



(377) Cynodon dactylon, Pers. College Station, Brazos county; Cal- 

 vert, Robertson county; Independence, Washington county; Dallas, Dallas 

 county. Naturalized in many places, but always fails to produce seed. 



(278) Boideloua racemosa. Lag. Northern Texas. 



(271)) Elensineindica, (Axvln. (^Crovv-foot grass.) College Station, Brazos 

 county; Calvert, Robertson county. (P.) Common in cultivated ilelds in 

 central Texas. Coming up in cornfields, where it yields abundant good 

 forage. 



(280) LeptocJdoa mucronata, Kunth. College Station, Brazos county; 

 Calvert, Robertson county (P.); Sherman, Grayson county. Common in cul- 

 tivated fields, yielding some forage. 



('281) Buchloe daclyloides, Engelm. Melissa, Collin county. Escaped 

 from cultivation. Grimes county. 



(282) Eragratis major, Host. Slender form. College Station, Brazos 

 county. (P.) • 



(283) E. oxylepis. Yarborough, Grimes county (P.); College Station, 

 Brazos county. Common on dry prairies in waste places. 



(281) E. tenuis, Gray. College Station, Brazos county. (P.) Prairies 

 common. 



(285) Chloris verlicillata, Nutt. College Station, Brazos county. (P.) Dry 

 places. 



(286) C. swartziana, Doell. Central Texas. (P.) 



(287) Unio la gracilis, Michx. College Station, Brazos county. In woods 

 common. 



(288) Poa arochnifera/IovY. Ennis, Ellis county. A valuable grass. 



CRYPTOGAMOUS PLANTS. 

 FILICES. 



(289) Polypodium incanum, Swartz. College Station, Brazos county ; 

 Montgomery county. 



(290) Adiantum cfqnllus— veneris, L. Denison, Grayson county. 



MARSILIACE.-E. 



(291) Marsilia vestita. Hook. & Grev. Clay Station. Dry soil. 



