224 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



The type of P. agrostidiforme Lam. was examined at the Lamarck Herbarium in the 

 Museum at Paris; those of P. polygonatum Schrad. and P. diandrum Kunth at Halle, 

 among specimens loaned to Professor Mez by the Berlin Herbarium. A specimen of 

 P. tenuiculmum from Meyer is in the Trinius Herbarium; the type of P. ramuliflorum 

 Hochst. ("PL Kappler surin. nr. 1523") is in the Herbarium at Munich. All these 

 agree with Swartz's type. 



24. Panicum leucothrix Nash, Bull. Torr. Club 24: 41. 1897. 

 Herradura, Hitchcock in 1906. 



In the Grisebach Herbarium is a specimen of this from western Cuba, 1863, numbered 

 "923=3463." For other species distributed as 3463, see P. wrightianum, P. tenue, and 

 P. caerulescens . 



25. Panicum maximum Jacq. Coll. 1: 76. 1786. 

 Panicum laeve Lam. Tabl. Encycl. 1: 172. 1791. 

 Panicum trichocondylum Steud. Syn. PL Glum. 1: 74. 1854. 



Santiago de las Vegas, Wilson 438, Baker & Wilson 682, Hitchcock in 1906; Madruga, 

 Shafer; Guanabacoa, Leon 189; Guanajay, Palmer & Riley 816; San Diego de los 

 Bafios, Palmer & Riley 542, 545; El Guama, Palmer & Riley 178; Pinar del Rio, 

 Wilson 1770, Palmer & Riley 377; Herradura, Hitchcock in 1906; Santiago de Cuba, 

 Pollard, Palmer <Sc Palmer 283; Cienfuegos, Combs 294 in Gray Herbarium; Guines, 

 Leon 427. In the Herbarium of the New York Botanical Garden are: Santiago de 

 Cuba, Underwood <Sc Earle 162; Matanzas, Britton & Shafer 113. 



The type of P. laeve Lam., labeled "de Ste. Dominique " in the Lamarck Herbarium 

 and that of P. trichocondylum Steud., labeled "Ins. Guadaloup. Duchaissing" are in 

 the Museum at Paris. 



Cultivated for forage and frequently escaped into waste land. 



26. Panicum megiston Schult. Mant. 2: 248. 1824. 



Panicum altissimum Meyer, Prim. Fl. Esseq. 63. 1818, not Brous. 1805. 

 On tembladeros in lagunas, St. Cruz de los PifLos, July, Wright 3872. 



27. Panicum neuranthum Griseb. Cat. PL Cub. 232. 1866. 

 Wright 3453 in part. 



The type specimen in the Grisebach Herbarium is from eastern Cuba, 1860, num- 

 bered "103=3453." The specimen in the Gray Herbarium is labeled, "Cuchillos 

 de Baracoa, June 20." ' This species is distinguished from others of the Angusti- 

 folium group by the smooth culms and nodes, involute blades, and narrow panicles, 

 and by spikelets 2 mm. long. P. neuranthum also occurs in southern Florida: Sanibel 

 Island, Simpson 298; Braidentown, Tracy 6711; Clearwater, Tracy 7166; Rugel 290; 

 Miami, Hitchcock 705, 710; Alligator Harbor, Tracy 7176. 



28. Panicum nitidum Lam. Tabl. Encycl. 1: 172. 1791. 

 PamcumsK-66ar6uZaium Scribn.&Merr.U.S.Dept.Agr.Div.Agrost.Circ. 29: 9. 1901. 

 Wright 3459. 



The specimen in the Sauvalle Herbarium is fragmentary, but the specimen in the 

 Kew Herbarium is more complete. Wright's 3459 in the Gray Herbarium is partly 

 this and partly P. parvifolium. 



29. Panicum numidianum Lam. Tabl. Encycl. 1: 172. 1791. 

 Panicum harhinode Trin. Mem. Acad. Petersb. VI. 3^: 256. 1835. 

 Panicum equinum ^alzia.; Steud. Syn. PL Glum. 1: 67. 1854. 



Wet places in savannas, Pinar del Rio, October, Wright 1545; Puentes Grandes, 

 Leon 283; Cienfuegos, Pringle 26, Habana, Leon 568. The following are in the her- 

 barium of the New York Botanical Garden: Santiago de Cuba, Underwood <Sc Earle 163; 

 Matanzas, Britton & Shafer 512; Eggers 4870, 



