12 



portion of the culm and sheath pinplisli, tlie latter (in the type) white-spotted 

 with small oblong spots or blotches. 

 Th-y, rocky hills, Patzcuaro, State of Michoacan, 5203 C. G. Pringle, October lU, 1892. 

 Allied to Fdiucnm scabriiiscKhtin Ell., but readily distinguished ))y its larger spikelets, 

 less densely flowered panicles, and distinctly cartilaginous, serrulate leaf mar- 

 gins. The plant throughout is more slender. 

 Panicum avenaceum H. B. K. Nov. Gen. etSp. PI. 1: 99 (1815). 

 Durango, State of Durango, 741 E. Palmer, August, 1896. 



PANICUM (SYNTHERISMA) BADIUM Scrilui. & Merrill, sp. nov. (Fig. 3.) 

 A slender, erect, casspitose perennial, 4 to 7 dm. high, with linear-lanceolate leaves 

 and digitate panicles of 3 to 5 erect spike-like branches 4 to 7 cm. long. Culms 

 geniculate and compressed below, glabrous or with few long white hairs above; 

 nodes glabrous; sheaths loose, shorter than the internodes, striate, pilose, with 

 rather long spreading hairs; ligiUe al)Out 2 mm. long, acute or obtuse, hyaline 

 except on the narrow brown margin; leaf-blades 5 to 20 cm. long, 5 to 6 nnn. 

 wide, plane, acute, slightly narrowed at the base, pilose on both sides witli few, 

 long, white hairs. Inflorescence exserted, the Ijranches slender, glabrous. 

 Spikelets in pairs, one short-pedicellate, one long-pedicellate, ovate, acute, 2.5 

 mm. long; first glume obsolete; second and third glumes densely pubescent 

 with rather short brown hairs, the former about three-fourths as long as the 

 flowering glume, acute, 3-nerved, the latter equaling the flowering glume, 3 to 5 

 nerved; flowering glume narrowly ovate, acute or short-acuminate, dark browm, 

 obscurely striate or pitted. 

 Sierra de San Felipe, State of Oaxaca, altitude between 2,300 and 2,800 m., 915 C. L. 



Smith, October 6, 1894. 

 Distributed as Anthfcnantia vlUosa Beauv. which it somewhat reseml)les in the 

 pubescence of the outer glumes, but very different in habit and inflorescence. 

 'Related to Panicum ph xothrix Tnn. Icon. Gram. 1: t. 91 (1828) {P. ferrugineum 

 Kunth, Rev. Gram. 1: 39; 2: 501, t. 163 (1835), but readily distinguished by its 

 much broader, pilose leaves, pilose sheaths and culms, and longer second glume. 

 Panicum bulbosum H. B. K. Nov. Gen. et Sp. PL 1: 99 (1815). 

 Santiago Papasquiaro, State of Durango, 467 E. Palmer, August, 1896; near Monte 

 Escobedo, State of Jalisco, 2609 J. N. Rose, August 26, 1897; near Dolores, Ter- 

 ritorio de Tepic, 2053 J. N. Rose, 1897; between Agnacata and Dolores, 3361 

 J. N. Rose, August 6, 1897; between Pedro Paulo and San Blascito, Territorio de 

 Tepic, 1999 J. N. Rose, August 4, 1897. 

 Panicum caespitosum Swartz, Fl. Ind. Occ. 1 : 146 ( 1797). 

 Durango, State of Durango, 433 E. Palmer, August, 1896. 

 Panicum colonum L. Syst. Nat. ed. 10, 870 (1758-59). 



Rosario, State of Sinaloa, 1544 J. N. Rose, July 7, 1897; between Acaponeta and 

 Pedro Paulo, Territorio de Tepic, 1923 J. N. Rose, August 2, 1897; Colima 169 

 E. Palmer, 1897; Torreon, State of Coahuila, 508 E. Palmer, October, 1898; 

 Parras, 454 E. Palmer,^ October, 1898; near Colonia Garcia, State of Chihuahua, 

 6187 E. W. Nelson, August 1, 1899; near Pachico, State of Chihuahua, 6298, 6301 

 E. W. Nelson, August 26, 1899. 

 Panicum compactum Swartz, in Griseb. Fl. Brit. W. Ind. 552 (1864). 

 Near Huasemote, State of Durango, 3502 J. N. Rose, August 15, 1897. 

 Panicum crus-galli L. Sp. PI. 56 (1753). 



San Francisco, State of Vera Cruz, 1329 C. L. Smith, 1894; Durango, State of Durango, 

 252, 730 E. Palmer, June-September, 1896; Santiago Papasquiaro, State of 

 Durango, 466 E. Palmer, August, 1896; near Colotlan, State of Jalisco, 3606 

 J. N. Rose, August 29, 1897; below Pachico, State of Chihuahua, 6244 E. W. 

 Nelson, August 22-24, 1899; between Casas Grandes and Sabinal, State of Chi- 

 huahua, 6355a E. W. Nelson, September 4-5, 1899. 



