220 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Gray Herbarium consists of P. condensum and P. laxum. Wright's 3863 in the Gray 

 Herbarium consists of P. condensum and Hymenachne auriculata. 



10. Panicum diffusum Sw. Prod. 23. 1788. 



Wright 1540; in pastures, Retiro, July, Wright 3852; damp savannas, Retiro, 

 October 11, Wright 3877; Santiago de las Vegas, Baker HC 350, 511, 2052, 2054, Tracy 

 9111, Wilson 1405; Habana, Leon 190, 305, Baker, Tracy & Hasselbring HC 3095; Tris- 

 cornia, Tracy 9082; Guanajay, Palmer & Riley 802; Isle of Pines, Curtiss 384, 494. 

 The following are in the Herbarium of the New York Botanical Garden: Santiago 

 de las Vegas, Van Hermann 2444; Sagua, Britton & Wilson 314; Madruga, Britton 

 & Shafer 649; Matanzas, Rugel 907. 



A sheet in the National Herbarium of Wright 3860 and another marked "Cuba 

 3860," which appears to be a Wright plant although there is no Wright label, are in 

 part P. diffusum. In the Grisebach Herbarium are three specimens marked, respec- 

 tively, "In the edge of woods and margin of savannas, Hanabana, May 29," 1865, with 

 the secondary number 191; no. 1540 from eastern Cuba, 1859; and "edge of savannas, 

 Hanabana, May 19," in 1865, with the secondary number 190. Wright's 3877 in the 

 Sauvalle Herbarium and in the Torrey Herbarium is part P. exiguifiorum. 



11. Panicum distantiflorum Rich, in Sagra, Hist. Cub. 11: 304. 1850. 

 Panicum utawanaeanum Scribn. in Millsp. Field Columb. Mus. Bot. 2: 25. 1900. 

 Panicum sintenisii Nash, Bull. Torr. Club 30 : 382. 1903. 



Wright 3452; Cojimar, Baker HC 267, 2902, Hitchcock in 1906; Triscornia, Tracy 9089, 

 Hitchcock in 1906; Matanzas, Rugel 190 in Gray Herbarium, 874 in Herb. N. Y. Bot. 

 Gard. 



Grisebach 's specimen from eastern Cuba, 1860, is numbered "104=3452." Another 

 specimen, included by Grisebach under Panicum stenodes, is labeled, "Bushy savan- 

 nas, Hanabana, May 16, in small tufts," no. 2S5. A third specimen, "Savannas of 

 Guamaroca, July 25," no. 284, is also included under P. stenodes. A part of Wright 

 3870 in the National Herbarium belongs to this species. The type of Richard's species 

 in the herbarium of the Museum at Paris agrees with Scribner's type from Guanica, 

 Porto Rico, a part of which is in the National Herbarium. Nash's description 

 applies to these specimens and his type (Sintt nis 3463) was also collected at Guanica, 

 Porto Rico. Sintenis's 3365 and Ml Hi, from Guanica, Porto Rico, also belong to this 

 species 



12. Panicum divaricatum L. Syst. Nat. ed. 10. 2: 871. 1759. 

 Panicum bambusoides Hamilt. Prod. Ind. Occ. 10. 1S26. 

 Panicum chauvinii Steud. Syn. PI. Glum. 1: 68. 1854. 



Eillsides, scandent or ascending, Valestina, September 19, Wright 748; Wright 747; 

 Guanajay, Baker IK' 1269, El Cangre, Baker IK' 5198; Cojimar, Baker IK' 5324, La 

 Magdalena, Baker EC 2501, Kill; Eabana, Baker lie L837; Triscornia, Hitchcock in 

 1906; Ilerradura, Tracy 9047, 9044; Santiago do Cuba, Millspaugh 1015; Baracoa, 

 Pollard, Palmer A- Palmer 76; Isle of Finos. Millspaugh 1122, Palmer A- Riley 1001; 

 Cienfuegos, Combs lis in Gray Berbarium. In the herbarium of the New York 

 Botanical Garden are the following: Managua, Baker & Wilson 304; Santiago de Cuba, 

 Underwood & Earle L642; Taylor 327; Matanzas, Britton A- Wilson 241; Isle <>f Pines, 

 ( 'urtiss in L904. 



Widely clambering over bushes. The two specimens of this in Grisebach's her- 

 barium, called by him /'. divaricatum, are "Prope villain .Monte Verde dictam, Cuba 

 orientalis," no. 717, and another labeled 747a:. These are both smooth throughout. 

 Besides these thereare two specimens with pubescenl blades, which Grisebach calls 

 P . divaricatum variety puberulumfi One is labeled " In sylvis densis, Matanzas, Cuba, 



a Millspaugh, Plantae Utawanae no. 702. 

 b Griseb. PI. Brit. W. Ind. 551. L864. 



