GRASSES OF IOWA. 417 



Pammhl, Emma— 



A comparative study of the leaves of Lolium, Festuca and Bromus. 

 Proc. la. Acad. Sci. 4: 126-131. J pi Cont. la. St. Coll. Bot. Dept. 

 4: 126-131. 3 pi. Morph. 



Pammhl, L. H.— 



The histology of the caryopsis and endosperm of some grasses. Trans. 

 Acad. Sci. of St. Louis. 8: 199-220. pi. 17-19. Morph. 



Notes on the grasses and forage plants of Iowa, Nebraska and Colorado. 

 Bull. U. S. Dept. Agr. Div. Agros. 9: 47. 11 f. Ec. 



Notes on grasses of Nebraska, South Dakota and Wyoming. Proc. Dav. 

 Acad. Sci. 7: 229-245. Cont. .a. St. Coll. Bot. Dept. 15: 229-24.S. PI. 

 Syst. 



Some ecological notes on Iowa grasses. Proc. Soc. Prom. Ag. Sci. 

 1898: 204-211. Cont. la. St. Coll. Bot. Dept. 12: 204-211. PI. 



Some germination studies of cereals. Proc. Soc. Prom. Agr. Sci. 

 1898: 194-203. Cont. la. St. Coll. Bot. Dept. 12: 194-203. 1 pi. 



Pammhl, L. H. and Combs, Robert — 



Some botanical notes on corn. Bull. la. St. Coll. Ex. Sta. 36: 849-855. 

 8 f. Syst. 



Pammhl, L. H., Weems, J. B. and Scribner, F. Lamson — 

 Grasses. Bull la. St. Coll. Ex. Sta. 54: 71-344. 137 f. Ec. 

 Pastures and meadows of Iowa. Bull. la. St. Coll. Ex. Sta. 56: 385-621. 



f.i 38-220. Ec. 



The grasses of Iowa. Bull. la. Geol. Surv. 1: 525. 220 f. 1901. Ec. 



Pammhl, L. H. and Scribner, F. Lamson — 



Some notes on grasses collected in 1895 between Jefferson, Iowa, and 

 Denver, Colorado. Proc. Soc. Prom. Agr. Sci. 17: 94-104. 1896. Cont. la. 

 St. Coll. Bot. Dept. 3:94-104. PI. 



Peter, A. M.— 



Analyses of some Kentucky grasses. Bull. St. Coll. Ky. Ex. Sta. 87: 

 111-119. Chem. 



Plumb, C. S. — 



Indian Corn culture. 243. Chicago. 1895. Ec. 



The geographic distribution of cereals in North America. Bull. Div. 

 Biol. Surv. U. S. Dept. Agr. 11: 24. I pi. Ec. 



POINDEXTHR, C. C. — 



The development of the spikelet and grain of corn. Ohio. Nat. 4. 3-9. 

 2 pi Morph. 



Porter, Thomas C. — 



A list of the grasses of Pennsylvania. Bull. Torr. Bot. CI. 1893: 193-207. 

 Fl. 



Rydberg, P. A.— 



Flora of the sand hills of Nebraska. Cont. U. S. Nat. Herb. 3: 133-203. 

 2 pi. PL 



27 



