MANUAL OF THE GRASSES OF THE UNITED STATES 



855 



theses by Wood, doubtless refers to 



Panicum glabrum Gaudin. 

 Paspalum glabrum Cassidy, Colo. Agr. 



Expt. Sta. Bui. 12: 91. 1890. Not P. 



glabrum Poir., 1804. Colorado. 

 Syntherisma humifusum Rydb., N. Y. Bot. 



Gard. Mem. 1: 469. 1900. Based on 



Digitaria humifusa Pers. 

 Syntherisma ischaemum Nash, N. Amer. 



Fl. 17: 151. 1912. Based on Panicum 



ischaemum Schreb. 

 The name Panicum lineare L. {Syntheris- 

 ma lineare Nash) has been used for Digitaria 

 ischaemum, but the description does not 

 apply (e.g. "calycis squama exterior brevior, 

 patens, rachi adhaerens"). It is probably 

 Cynodon dactylon. 

 Digitaria ischaemum var. mississippiensis 



(Gattinger) Fernald, Rhodora 22: 103. 



1920. Based on Panicum glabrum var. 



mississippiense Gattinger. 

 Panicum glabrum var. mississippiense 



Gattinger, Tenn. Fl. 95, 1887, name 



only, Nashville. Scribn., Tenn. Agr. 



Expt. Sta. Bui. 7: 39. 1894. Knoxville, 



Tenn. 

 Panicum lineare var. mississippiense 



Gattinger ex Beal, Grasses N. Amer. 2 : 



111. 1896. Presumably based on P. 



glabrum var. mississippiense Gattinger. 

 Syntherisma linearis mississippiensis 



Nash, Torrey Bot. Club. Bui. 25: 300. 



1898. Based on Panicum glabrum var. 



mississippiense Gattinger. 

 (7) Digitaria longiflora (Retz.) Pers., Syn. 



PL 1: 85. 1805. Based on Paspalum 



longiflorum Retz. 

 Paspalum longiflorum Retz., Obs. Bot. 4: 



15. 1786. India. 

 Panicum longiflorum Gmel., Syst. Nat. 2: 



158. 1791. Presumably based on 



Paspalum longiflorum Retz. 

 Syntherisma longiflora Skeels, U. S. Dept. 



Agr., Bur. Plant Indus. Bui. 261: 30. 



1912. Based on Paspalum longiflorum 



Retz. 

 (15) Digitaria oauciflora Hitchc, Biol. Soc. 



Wash. Proc. 41: 162. 1928. Southern 



Florida, Eaton 207. 

 Syntherisma pauciflorum Hitchc. in Small, 



Man. Southeast. Fl. 51. 1933. South- 

 ern Florida. [Eaton 207.] 

 Digitaria pentzii Stent, Bothalia 3: 147. 



1930. Cape Province, South Africa. 



Pentz 8510. 

 (14) Digitaria runyoni Hitchc, Wash. Acad. 



Sci. Jour. 23: 455. 1933. Mouth of Rio 



Grande, near Brownsville, Tex., Run- 

 yon 188. 

 (1) Digitaria sanguinalis (L.) Scop., Fl. 



Carn. ed. 2. 1: 52. 1772. Based on 



Panicum sanguinale L. 

 Panicum sanguinale L., Sp, PL 57. 1753. 



America and southern Europe. 

 Dactylon sanguinalis VilL, Hist. PL 



Dauph. 2: 69. 1787. Based on Panicum 



sanguinale L. 



Synthensma praecox Walt., Fl. Carol. 76. 

 1788. South Carolina. 



Paspalum sanguinale Lam., Tabl. En- 

 cycl. 1: 176. 1791. Based on Panicum 

 sanguinale L. 



Digitaria praecox WilkL, Enum. PL 91. 

 1809. Based on Syntherisma praecox 

 Walt. 



Panicum adscendens H. B. K., Nov. Gen. 

 et Sp. 1: 97. 1815. Venezuela, Peru, 

 and Mexico, Humboldt and Bonpland. 



Cynodon praecox Roem. and Schult., Syst. 

 Veg. 2: 412. 1817. Based on Syntheris- 

 ma praecox Walt. 



Digitaria marginata Link, Enum. PL 1: 

 102. 1821. Brazil. 



Digitaria fimbriata Link, Hort. Berol. 1: 

 226. 1827. Brazil. 



Panicum fimbriatum Kunth, Rev. Gram. 

 1 : 33. 1829. Based on Digitaria fim- 

 briata Link. 



Panicum linkianum Kunth, Rev. Gram. 

 1: 33. 1829. Based on Digitaria margi- 

 nata Link. 



Syntherisma sanguinalis Dulac, FL Haut. 

 Pyr. 77. 1867. Based on Panicum 

 sanguinale L. 



Syntherisma fimbriatum Nash, Torrey Bot. 

 Club Bui. 25: 302. 1898. Based on 

 Digitaria fimbriata Link. 



Syntherisma marginatum Nash, N. Amer. 

 Fl. 17: 154. 1912. Based on Digitaria 

 marginata Link. 



Digitaria marginata var. fimbriata Stapf 

 in Prain, Fl. Trop. Afr. 9: 440. 1919. 

 Based on D. fimbriata Link. 



Panicum sanguinale subsp. marginatum 

 ThelL, Vierteljahrs. Nat. Ges. Zurich 

 64: 699. 1919. Based on Digitaria 

 marginata Link. 



Digitaria sanguinalis var. marginata Fer- 

 nald, Rhodora 22: 103. 1920. Based 

 on D. marginata Link. 



Digitaria adscendens Henr., Blumea 1: 92. 

 1934. Based on Panicum adscendens 

 H. B. K. 



Digitaria nealleyi Henr., Blumea 1: 94. 

 1934. Texas, Nealley in 1884. A dupli- 

 cate of the type in the National Herbari- 

 um is distorted by a fungus. Described 

 as Syntherisma barbaia (Willd.) Nash 

 in Small's Flora. 

 Digitaria sanguinalis var. ciliaris (Retz.) 

 Pari., Fl. Ital. 1: 126. 1848. Based on 

 Panicum ciliare Retz. 



Panicum ciliare Retz. Obs. Bot. 4: 16. 

 1786. Asia. 



Digitaria sanguinalis subsp. ciliaris Do- 

 min, Preslia 13/15: 47. 1935. Based on 

 Panicum ciliare Retz. 

 (6) Digitaria serotina (Wait.) Michx., Fl. 

 Bor. Amer. 1: 46. 1803. Based on 

 Syntherisma serotinum Walt. 

 Syntherisma serotinum W'alt., FL Carol, 

 76. 1788. South Carolina. 



Paspalum serotinum Flligge, Monogr. 

 Pasp. 145. 1810. Based on Digitaria 

 serotina Michx. 



