11 



Lav;i IxmIs, Pfdriiral, Valley <>f ^It'xicu, lu'dtTal District, <1474 ('. <t. Pringle, Septeni- 



l)er 1, 189(1. 

 Paspalum velutinum (DC) Kunth, Rev. Gram. 1: 27 (1885). {Milium velniiimrn 



DC. Cat. Hort. Monnp. 12(i (1813).) 

 Sanily fields, base of Sierra de Ajusco, altitude 1,900 m.. Federal District, 6623 C. G. 



Pringle, October 29, 1896. This specimen is certainly identical with what 



Fournier^ considered to be this species, and there can be little doubt but that it 



is the same as J///(?(»/ ri'Iiiluium DC. Tn habit very much resemT)liii<r Pdnicuni. 



xaiKjn'uiah' L. , and intermediate 



between the section Digitaria of 



the genus Panicum and the 



genus Paspahnn. 

 Eriocliloa punctata (L. ) W. Ham- 

 ilton, Prodr. PL Ind. Occ. 5 



(1825). {Milium pumiatum L. 



Amoen. Acad. 5: 392 (1759); 



Eriochlud polystachiia H. B. K. 



Nov. Gen. et Sp. PI. 1 : s>: 



(1815).) 

 Durango, State of Durango, 524, 



736 F]. Palmer, August and 



September, 1896; Topolobami^o, 



State of Sinaloa, 242 E. Palmer, 



September, 1897; Torreon, State 



of Coahuila, 509 E. Palmer, 



October, 1898, in rich, moist soil 



along the Nassus River. 

 Isachne disperina Doell, in Mart. 



Fl. Bras. 2': 274 (1877). 

 Jalapa, State of Vera Cruz, 1804 



C. T.. Smith, 1894. 

 * Panicum albomaculatum Scribn. 



U. S. Dept. Agr. Div. Agros. 



Cir. 19: 2 (January, 1900). 

 A rather slender, erect, s])aringly 



branched perennial, 6 to 8 dm. 



high, with striate sheaths, short, 



ciliate ligules, and spreading 



panicles 12 to 16 cm. long. 



Nodes glabrous, tlie overlap- 



})ing margins of the sheaths 



very densely ciliate or subvil- 



lous. Leaf-blades 7 to 12 cm. 



long* 5 to 10 mm. wide (when 



dry), very acute, rounded at 



the somewhat clasping base, ^cibrous on the nerves behjw, glabrous aV)Ove, 



shari>ly serrulate-scabrous on the narrowly cartilaginous margins, which are 



ciliate near the base. Axis and branches of the panicle glabrous, the lower 



longer branches 8 to 10 cm. long. Spikelets ovate, obtuse, 2.5 mm. long; first 



glume obtuse, l-nerved, subremote, clasping the pedicel; the second and third 



glumes 7-nerved, thinly pubescent with short hairs, about ecjualing the smooth 



and shining fourth glume; the third glume has a thin, short palea. The exposed 



Fig. 3. — PniiicuinhaiUnni Scrilm tt Merrill: d, ?<. spikelets 

 enlarged; c, .same witli outer glumes removed. 



^Mex. PI. 2: 8 (1881). 



