MANUAL OF THE GRASSES OF THE WEST INDIES 169 
1. Digitaria sanguinalis (L.) Scop., Fl. Carn. ed. 2. 1: 52. 1772. 
CRABGRASS. 
Pamcum sanguinale L., Sp. Pl. 57. 1753. America, Europe. 
Digitaria marginata Link, Enum. Pl. 1: 102. 1821. Brazil. 
Digitaria fimbriata Link, Hort. Berol. 1: 226. 1827. Brazil. 
Syntherisma sanguinalis Dulac, Fl. Haut. Pyr. 77. 1867. 
Syntherisma fimbriata Nash, Bull. Torrey Bot. Club 25: 302. 1898. 
Spreading branching annual often rooting at the nodes; sheaths 
pilose;-blades more or less pilose; racemes few to several, ascending or 
spreading, 5 to 10 cm long, in 1 or 2 whorls; spikelets about 3 mm 
long, the first glume small but distinct (fig. 106). 
A common weed in culti- 
vated soil and waste places 
throughout the temperate 
and tropical regions of both 
hemispheres. To be foundon 
all the West Indian islands. 
Anexcellentfodder grass. In 
Cuba thisis one of the grasses 
called “pata de gallina.” 
2. Digitaria horizontalis 
Willd., Enum. Hort. 
Berol. 92. 1809. Santo 
Domingo. 
Milium digitatum Swartz, 
Prodr. Veg. Ind. Occ. 24. 
1788. Jamaica. Not Digita- 
ria digitata Buse, 1854. 
Axonopus digitatus Beauv., 
WSS eA SPOS tcl 2 4 ols 4... 
S12: 
Digitaria setigera Roth; 
Roem. and Schult., Syst. 
Veg. 2:474. 1817. India. FIGURE 107.— Digitaria horizontalis. Plant, X 1; spikelet 
Panicum horizontale Meyer, and floret, X 10 (Nash 996). 
Prim. Fl. Esseq. 54. 1818. 
Digitaria setosa Desv.; Hamilt., Prodr. Pl. Ind. Occ. 6. 1825. 
Antilles. 
Digitaria jamaicensis Spreng., Syst. Veg. 1: 272. 1825. Jamaica. 
Paspalum digitatum Kunth, Rév. Gram. 1: 24. 1829. 
Panicum hamiltonii Kunth, Réy. Gram. 1: Sup. TX. 1830. Antilles. 
Syntherisma setosa Nash, Bull. Torrey Bot. Club 25: 300. 1898. 
Syntherisma digitata Hitche., Contrib. U. 5. Natl. Herb. 12: 142. 
1908. 
Digitaria digitata Urban, Symb. Antill. 8: 24. 1920. Not Digitaria 
digitata Buse, 1854. Based on Milium digitatum Swartz. 
Decumbent branching stoloniferous weedy annual with pilose sheaths 
and pubescent, often velvety, flat blades, and 5 to 15 very slender lax 
racemes up to 8 cm long, subdigitate or in fascicles along a slender 
axis; spikelets narrow, about 2.5 mm long; first glume obsolete or 
wanting (fig. 107). 
