978 MISC. PUBLICATION 200, U. S. DEPT. OF AGRICULTURE 



Sorghum zizanioides Kuntze, Rev. Gen. PI. 2: 791. 1891. Based on Phalaris 



zizanioides L. 

 Andropogon zizanioides Urban, Symb. Antill. 4: 79. 1903. Based on Phalaris 



zizanioides L. 

 Holcus zizanioides Kuntze, Stuck., An. Mus. Nac. Buenos Aires 11: 48. 1904. 



Based on Phalaris zizanioides L. 

 Anatherum zizanioides Hitchc. and Chase, Contrib. U.S. Natl. Herb. 18: 285. 



1917. Based on Phalaris zizanioides L. 



(96) WILLKOMMIA Hack. 



(1) Willkommia texana Hitchc., Bot. Gaz. 35: 283. f. 1. 1903. Ennis, Tex. 

 /. G. Smith in 1897. 



(159) ZEA L. 



(1) Zea mays L., Sp. PI. 971. 1753. America. 



Zea americana Mill., Gard. Diet. ed. 8. Zea no. 1. 1768. West Indies. 



Zea vulgaris Mill., Gard. Diet. ed. 8. Zea no. 3. 1768. Northern parts of 

 America. 



Mays zea Gaertn., Fruct. and Sem. 1: 6. pi. 1. f. 9. 1788. Based on Zea 

 mays L. 



Zea segetalis Salisb., Prodr. Stirp. 28. 1796. Based on Zea mays L. 



Mays americana Baumg., Enum. Stirp. Transsilv. 3: 281. 1816. Based on 

 Zea mays L. 



Zea mays var. precox Ton*., in Eaton, Man. Bot. ed. 2. 500. 1818. Northern 

 and Middle States. 



Mayzea cerealis Raf., Med. Fl. 2: 241. 1830. Based on Zea mays L. 



Zea hirta Bpnaf., Hist. Nat. Mais 29. pi. 4. 39. pi. 4. 1836. Cultivated, seed 

 from California. 



Zea mays pensylvanica Bonaf., Hist. Nat. Mais 33. pi. 7. f. 4. 1836. Culti- 

 vated. 



Zea mays virginica Bonaf., Hist. Nat. Mais 37. pi. 10. f. 15. 1836. Culti- 

 vated. 



Zea erythrolepis Bonaf., Hist. Nat. Mais 30. pi. 5; 38. pi. 11. f. 17. 1836. 

 Cultivated along Missouri River. 



Zea mais hirta Alefeld, Landw. Fl. 309. 1866. Based on Zea hirta Bonaf. 



Zea saccharata Sturtev., N.Y. State Agr. Expt. Sta. Rept. 1884 3 : 156. 1885 

 Group name for sweet corn. 



Zea canina S. Wats., Amer. Acad. Sci. Proc. 26: 160. 1891. Mexico. Hybrid 

 with Euchlaena mexicana Schrad., fide G. N. Collins. 



Zea mays saccharata Bailey, Cycl. Hort. 4: 2006. 1902. Based on Z. sac- 

 charata Sturtev. 



ZEA MAYS var. EVERTA Bailey, Cycl. Hort. 4: 2005. 1902. Based on Z. everta 

 Sturtev. 



Zea everta Sturtev., N.Y. State Agr. Expt. Sta. Rept. 1884 3 : 183. 1885. 



Group name for popcorn. 



ZEA MAYS var. JAPONICA (Van Houtte) Wood, Amer. Bot. and Flor. pt. 2: 409. 

 1870. Presumably based on Z. japonica Van Houtte. 



Zea japonica Van Houtte, Fl. Serr. Jard. 16: 121. 1865. Japan. 

 ZEA MAYS var. TUNICATA St. Hil., Ann. Sci. Nat., Bot. 16: 144. 1829. Uruguay. 



Zea cryptosperma Bonaf., Hist. Nat. Mais 30, 40. pi. 5 bis. 1836. Based on 

 Z. mais var. tunicata St. Hil. 



Zea tunicata Sturtev., Bull. Torrey Bot. Club 21: 335. 1894. Based on Z. 

 mays var. tunicata St. Hil. 



Of the many names published for forms of Zea mays only those based on ma- 

 terial from the United States are given above, and of these only such as apply 

 to the better-known races. See Sturtevant, N.Y. State Agr. Expt. Sta. Rept. 

 and Bailey, Cycl. Hort. for additional names. 



(113) ZIZANIA L. 



(1) Zizania aquatica L., Sp. PI. 991. 1753. Virginia. [Jamaica, also cited, is 



erroneous.] 

 Zizania clavulosa Michx., Fl. Bor. Amer. 1: 75. 1803. North America, 



Michaux. 



Hydropyrum esculentum Link, Hort. Berol. 1: 252. 1827. North America. 

 Stipa angulata L.; Steud., Nom. Bot. ed. 2. 2: 642. 1841, as synonym of 



Hydropyrum esculentum Link. 



