916 MISC. PUBLICATION 200, TJ. S. DEPT. OF AGRICULTURE 



This is the species described as Panicum acuminatum Swartz by Muhlenberg 

 (Descr. Gram. 125. 1817). 



PANICUM XALAPENSE var. STKICTIRAMEUM Hitchc. and Chase, Contrib. U.S. 

 Natl. Herb. 15: 161. f. 148. 1910. Jackson, Miss., Hitchcock 1311. (Pub^ 

 lished as P. xalapense strictirameum.) 

 Panicum laxiflorum var. strictirameum'Fernald, Rhodora 36: 75. 1934. Based 



on P. xalapense strictirameum Hitchc. and Chase. 

 (96) Panicum xanthpphy sum A. Gray, Gram, and Cyp. 1: no. 28. 1834. Oneida 



Lake, N.Y. 

 Panicum xanthophysum forma amplifolium Scribn., in Brainerd, Jones, and 



Eggleston, Fl. Vt. 104. 1900. Burlington, Vt., Jones. 

 (33) Panicum yadkinense Ashe, Jour. Elisha Mitchell Sci. Soc. 16: 85. 1900. 



Based on Panicum maculatum Ashe. 



? Panicum dumus Desv., Opusc. 88. 1831. Tropical America (locality erroneous). 

 Panicum maculatum Ashe, Jour. Elisha Mitchell Sci. Soc. 15: 44. 1898. Not 

 P. maculatum Aubl., 1775. Raleigh, N.C., Ashe in 1895. 



(37) PAPPOPHORUM Schreb. 



(3) Pappophorum bicolor Fourn., Mex. PL 2: 133. 1886. Toluca, Mexico, 



Karwinsky 1483. 

 (2) Pappophorum mucronulatum Nees, Agrost. Bras. 412. 1829. Bahia and 



Piauhy, Brazil, Martins. 

 Pappophorum vaginatum BuckL, Prel. Rept. Geol. Agr. Survey Tex. App. 1. 



1866. Western Texas [type, Wright 803]. 

 Pappophorum apertum Munro; Scribn., Bull. Torrey Bot. Club 9: 148. 1882. 



Camp Lowell, Ariz., Pringle. 

 Pappophorum apertum var. vaginatum Scribn.; L. H. Dewey, Contrib. U.S. 



Natl. Herb. 2: 535. 1894. Based on P. vaginatum BuckL 



(1) Pappophorum wrightii S. Wats. Amer. Acad. Sci. Proc. 18: 178. 1883. 



[Devils River, Tex.], Wright 751 and 2029. 



Pappophorum mexicanum Griseb.; Fourn., Mex. PL 2: 133. 1886. Mexico, 

 Guadalupe, Bourgeau; valley of Mexico, Schaffner 184. 



(128) PASPALUM L. 



(2) Paspalum acuminatum Raddi, Agrost. Bras. 25. 1823. Rio de Janeiro, 



Brazil, Raddi. 



(11) Paspalum almum Chase, Jour. Wash. Acad. Sci. 23: 137. f. 1. 1933. Beau- 

 mont, Tex., J. F. Combs in 1932. 

 (42) Paspalum bifidum (Bertol.) Nash, BuU. Torrey Bot. Club 24: 192. 1897. 



Based on Panicum bifidum Bertol. 

 Panicum floridanum Trin., Me"m. Acad. St. Petersb. VI. Sci. Nat. 1: 248. 1834. 



Not Paspalum floridanum Michx. Florida and Alabama. 

 Panicum bifidum Bertol., Mem. Accad. Sci. Bologna 2: 598. pi. 41. f. 2. e-h. 



1850. Alabama. 

 Panicum alabamense Trin.; Steud., Syn. PL Glum. 1: 64. 1854. Alabama, 



locality erroneously cited as North Carolina. 

 Paspalum racemulosum Nutt.; Chapm., FL South. U.S. 571. 1860. Florida 



to North Carolina and westward. 

 Paspalum interruptum Wood,. Class-book 783. 1861. Louisiana and Texas, 



Hale. 

 (25) Paspalum blodgettii Chapm., Fl. South. U.S. 571. 1860. Key West, Fla., 



Blodgett. 

 Paspalum dissectum Swartz; Roem. and Schult., Syst. Veg. 2: 308. 1817. Not 



P. dissectum L. 1762. Erroneously given as synonym of P. caespitosum 



Fliigge. Jamaica, Swartz. 

 Paspalum simpsoni Nash, Bull. Torrey Bot. Club 24: 39. 1897. No-Name 



in Small, FL Southeast. U.S. 73, 1326. 1903. 

 'it. 



.se, Cc 

 ucatan, Schott 597. 



Paspalum yucatanum Chase, Contrib. U.S. Natl. Herb. 28: 121. 1929. Me>ida, 

 Yu 



(41) Paspalum boscianum Fliigge, Monogr. Pasp. 170. 1810. Carolina, Bosc. 

 Paspalum virgatum Walt., Fl. Carol. 75. 1788. Not P. virgatum L., 1759. 

 South Carolina. 



" For discussion of types see Chase, Contrib. U.S. Natl. Herb. 28: 7-239. 1929. 



