HITCHCOCK AND CHASE TEOPICAL NORTH AMEEICAIST PANICUM. 483 



Panama: Between BoMo aud Frijoles, Hitchcoch 8397. Near Boliio, Hitchcock 

 8392. Tabernilla, Hitchcock 8382. Gorgona, Amer. Gr. Nat. Herb. 37. Pedro 

 Miguel, jffiic/icoc/c 7957. Puerto 



Obaldia,-P*i^^e''4374. Culebra, " 



Pittier 3441. 



Cuba: Matanzas, Wright in 1865. 

 Guantanamo, Leon 3913. 



Leeward Islands: Guadeloupe, 

 Duss 3917. 



Windward Islands: Martinique, 

 Duss 768 (K. U. Herb.). 



Trinidad: St. Margaritas, Broad- 

 way 2629. "Burke's pasture," 

 Bot. Gard. Herb. 2295. 



Venezuela: Rfo Grande del Tuy, Paparo, Pittier 6332 



Colombia: Santa Marta, Smith 164. 



Fig. 46.— Distribution of P. hirsutum. 



Bobures, Jahn 353, 355. 



MAXIMA. 

 Culms with a cormlike base. 



Blades mostly over 5 mm. wide; culms more than 1 meter 



high 36. P. bulbosum. 



Blades less than 5 mm. wide; culms rarely as much as 1 meter 



high 36a. P. bulbosum 



sciaphilum. 

 Culms from a creeping rootstock, not cormlike at base. 



Nodes hirsute; ligules 4 to 6 mm. long; fruit strongly rugose 34. P. maximum. 



Nodes glabrous; ligules 2 mm. long; fruit very obscurely 



rugose 35. P. plenum. 



34. Panicum maximum Jacq. 



Panicum maximum J&cq. Coll. Bot. 1: 76. 1786; Contr. U. S. Nat. Herb. 15: 78. 1910. 



distribution. 



Open ground, at low altitudes, escaped from cultivation, southern Florida through 

 Mexico and West Indies to South America, a native of Africa and now widespread 

 in the warmer parts of the Old World. Type locality, Guadeloupe. 



Sinaloa: Mazatlan, Rose, Standley & Russell 14121. 

 Colima: Paso del Rio, Emrich 3. . . 



Veracruz: Cordoba, Hitchcock 6410, Finch 8, Kerber 48. Jalapa, Hitchcock 



6621. Huitamalco, Liebmann 425 

 in part. Veracruz, Hitchcock 6562. 

 San Francisco, Smith 1409. Zacu- 

 apdn, Purpus 3774. 

 Yucatan: Izamal, Gaumer 719. 

 British Honduras: Manatee Lagoon, 



Peck 195 (Gray Herb.). 

 Guatemala: Escuintla, Smith 2705, 

 2706 , Hitchcock 9001 . Morales, Kel- 

 lerman 6267. GuaMn, Deam 6268. 

 Finca Sepacuite, Alta Verapaz, 

 Cook & Griggs 579. 

 Honduras: Puerto Cortez, Kellerman 4725. 



Salvador: San Salvador, Velasco 2. Izalco, Pittier 1960. Without locality, 

 Re7isoii, 293. 



Fig. 47.— Distribution of P. maximum. 



