226 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



The Grisebach specimen from eastern Cuba, 1860, is numbered "105=762." The 

 types of the above synonyms are all identical. The West Indian grass commonly 

 known as P. grossarium is P. adspersum Trin. 



The type of Panicum insularum Steud. labeled "Antillae minores, Hohenacker" is 

 in the Museum at Paris. 



36. Panicum rugelii Griseb. Cat. PI. Cub. 233. 1866. 



Shady woods, Valestina, September 27, Wright 3465; Pinar del Rio, Baker HC 3790; 

 San Antonio, Hitchcock in 1906; Matanzas, Britton & Shafer 106 in Herb. N. Y. Bot. 

 Gard. 



Creeping flat along the surface of the ground in shady woods, the leaves distinctly 

 dorso-ventral, more or less pubescent. In the Grisebach Herbarium is Rugel 188 from 

 Matanzas, .the type specimen, and Wright 3465. A duplicate type is in the Gray 

 Herbarium. 



37. Panicum scoparium Lam. Encycl. 4: 444. 1797. 

 Panicum viscidum Ell. Bot. S. C. & Ga. 1: 123. 1816. 

 Wright 3467. 



The specimen with this number in the Grisebach Herbarium is the same. The 

 specimen in the Gray Herbarium is labeled "In loose bunches, road to Pinal Mayari, 

 Aug. 4." 



*& 



38. Panicum sellovii Nees, Agrost. Bras. 153. 1829. 

 Panicum lasianthum Trin. Icon. 245. 1835. 



Panicum valenzuelanum, Rich, in Sagra, Hist. Cuba 11: 304. 1850. 



Wet savannas, Hanabana, May 17, Wright 3462; Wright 3455; edge of thickets in 

 pinales, Pinar del Rio, September, Wright 3855; Shafer 561 in Herb. N. Y. Bot. Gard.; 

 Herradura, Tracy 9098, Hitchcock in 1906. 



Grisebach 's specimen, which is from western Cuba, 1863, and is numbered "935= 

 3455," is the type of P. rugulosum hirtiglume Griseb. & Wright's 3855 in the Sauvalle 

 Herbarium has a second label which reads, "Low, wet ground beside rivulets, Pinar 

 del Rio, Oct. " Wright's 3455 in the Gray Herbarium is labeled ' ' Pinales, La Catalina, 

 Sept. 11," and "Pinal, Rangel, Aug. 6." P. rugulosum Trin.c has glabrous spike- 

 lets. This has not been found in Cuba. The type of P. sellovii in the Berlin Her- 

 barium agrees with the type of P. lasianthum in the Trinius Herbarium. In the latter 

 herbarium is also a portion of the type of P. sellovii. The type of Richard's species 

 is at Paris. 



39. Panicum sloanei Griseb. Fl. Brit. W. Ind. 551. 1864. 



Hillsides, scandent or trailing, Valestina, September 27, Wright 3878; near Habana, 

 Britton & Shafer 115, 759, Guanajay, Baker HC 4587, 4592; San Antonio, Hitchcock in 

 1906; Cienfuegos, Com hs 55 in Gray Herbarium; Rugel 872 in Gray Herbarium. The 

 following are in the herbarium of the New York Botanical Garden: Matanzas, 

 Britton & Wilson 121, 393; Rugel 868; Santiago de Cuba, Taylor 328; Madruga, Brit ton 

 & Shafer 759; Isle of Pines, Taylor 22. 



Leaf blades larger and broader and panicle larger and more widely spreading than 

 in P. divaricatum. In the Grisebach Herbarium are two specimens, "In sylvis densis, 

 Matanzas, Rugel 872," and "Woods, Hanabana, June 17, 1865," Wright 269. A 

 specimen in the herbarium of the New York Botanical Garden from Matanzas (Britton 

 & Shafer 586) is doubtfully referred here. 



a For a discussion see Contr. Nat. Herb. 12: 119. 1908. 

 &Cat. PI. Cub. 233. 1866. 

 cGram. Pan. 195. 1826. 

 6117009 15 



