MANUAL OF THE GRASSES OF THE UNITED STATES 979 



Zizania ^effusa Munro, Jour. Proc. Linn. Soc. 6: 52. 1862, as synonym of Z. 



aquatica L. 

 Ceratochaete aquatica Lunell, Amer. Midi. Nat. 4: 214. 1915. Based on 



Zizania aquatica L. 

 Zizania aquatica var. interior Fassett, Rhodora 26: 158. 1924. Armstrong, 



Iowa, Pammel and Cratty 764. 

 Zizania interior Rydb., Brittonia 1: 82. 1931. Based on Z. aquatica var. 



interior Fassett. 



ZIZANIA AQUATICA var. ANGUSTIFOLIA Hitchc., Rhodora 8: 210. 1906. Bel- 

 grade, Maine, Scribner in 1895. 



Zizania palustris L., Mant. PL 295. 1771. North America. 

 Melinum palustre Link, Handb. Gewachs. 1: 96. 1829. Based on Zizania 



palustris L. 

 (2) Zizania texana Hitchc., Jour. Wash. Acad. Sci. 23: 454. 1933. San Marcos, 



Tex., Silveus. 



(114) ZIZANIOPSIS Doell and Aschers. 



(1) Zizaniopsis miliacea (Michx.) Doell and Aschers.; Doell, in Mart., Fl. Bras. 



2 2 : 13. 1871. Presumably based on Zizania miliacea Michx. 

 Zizania miliacea Michx., Fl. Bor. Amer. 1: 74. 1803. North America, 

 Michaux. 



(87) ZOYSIA Willd. 



Zoysia japonica Steud., Syn. PI. Glum. 1: 414. 1854. Japan. 



Zoysia pungens var. japonica Hack., Bull. Herb. Boiss. 7: 642. 1899. Based 



on Z. japonica Steud. 

 Osterdamia japonica Hitchc., U.S. Dept. Agr. Bull. 772: 166. 1920. Based 



on Zoysia japonica Steud. 

 Zoysia matrella (L.) Merr., Philippine Jour. Sci. Bot. 7: 230. 1912. Based on 



Agrostis matrella L. 



Agrostis matrella L., Mant. PI. 2: 185. 1771. Malabar, India. 

 Zoysia pungens Willd., Gesell. Naturf. Freund. Berlin Neue Schrift. 3: 441. 



1801. Malabar, India. 

 Osterdamia matrella Kuntze, Rev. Gen. PL 2: 781. 1891. Based on Agrostis 



matrella L. 

 Osterdamia zoysia Honda, Bot. Mag. [Tokyo] 36: 113. 1922. Based on 



Zoysia pungens Willd. 

 Zoysia tenuifolia Willd.; Trin, Mem. Acad. St. Petersb. VI. Sci. Nat. 2 1 : 96. 1836. 



Mascarene Islands. 

 Osterdamia tenuifolia Kuntze, Rev. Gen. PL 2: 781. 1891. Based on Zoysia 



tenuifolia Willd. 

 Zoysia pungens var. tenuifolia Dur. and Schinz, Consp. Fl. Air. 5: 734. 1894. 



Based on Z. tenuifolia Willd. 

 Osterdamia zoysia var. tenuifolia Honda, Bot. Mag. [Tokyo] 36: 113. 1922. 



Based on Zoysia tenuifolia Willd. 



UNIDENTIFIED NAMES 



The following names of grasses, based on specimens collected in the United 

 States, cannot be identified from the descriptions, and the types have not been 

 located. Several of these names are not effectively published. 



Agrostis affinis Schult., Mant. 2: 195. 1824. Based on Agrostis no. 17 in 

 Muhlenberg's Descriptio Graminum p. 75. Sporobolus muhlenbergii Kunth, 

 Rev. Gram. 1: 68. 1829, and Vilfa muhlenbergii Steud., Syn. PL Glum. 1: 162. 

 1854, are also based on this. (See Hitchcock, Bartonia 14: 33. 1932.) 



Agrostis altissima var. laxa Tuckerm., Amer. Jour. Sci. 45: 44. 1843. White 

 Mountains, N.H., Trichodium altissimum var. laxum Wood, Class-book ed. 2. 600. 

 1847, presumably based on this. 



Agrostis michauxii Zuccagni, in Roemer, Coll. Bot. 123. 1809. Seed received 

 from Thouin, collected in Kentucky by Michaux. Not A. michauxii Trin., 1824? 



Agrostis pauciflora Pursh, Fl. Amer. Sept. 1: 63. 1814. Not A. pauciflora 

 Schrad., 1806. "On high mountains in Virginia and Carolina." In the Kew 

 Herbarium is a specimen of Muhlenbergia schreberi marked "N. Amer. Mr. Fred. 

 Pursh, Herb, propr. " but with no name on the label. The description does not 

 agree with this specimen, though it suggests some species of Muhlenbergia. 

 A. oligantha Roem. and Schult., Syst. Veg. 2: 372. 1817, Polypogon pauciflorus 

 Spreng., Syst. Veg. 1: 243. 1825, and Muhlenbergia tenuiflora pauciflora Scribn., 

 Mem. Torrey Bot, Club 5: 37. 1894, are based on this. 



