HITCHCOCK AND CHASE—TROPICAL NORTH AMERICAN PANICUM. 483 
Panama: Between Bohio and Frijoles, Hitchcock 8397. Near Bohio, Hitchcock 
8392. Tabernilla, Hitchcock 8382. Gorgona, Amer. Gir. Nat. Herb.37. Pedro 
Miguel, Hitchcock 7957. Puerto 
Obaldia, Pittier 4374. Culebra, 
Pittier 3441, 
Cusa: Matanzas, Wright in 1865. 
Guantéinamo, Ledn 3913. 
LrEwArD Istanps: Guadeloupe, 
Duss 3917. 
Winpwarp Istanps: Martinique, 
Duss 768 (K. U. Herb.). 
TRINIDAD: St. Margaritas, Broad- 
way 2629. ‘‘Burke’s pasture,”’ Fig. 46.—Distribution of P. hirsutum. 
Bot. Gard. Herb. 2295. 
VENEZUELA: Rio Grande del Tuy, Paparo, Pittier 6332. Bobures, Jahn 353, 355. 
CotomsiA: Santa Marta, Smith 164. 
MAXIMA. 
Culms with a cormlike base. 
Blades mostly over 5 mm. wide; culms more than 1 meter 
nd alae re ee a SS eh a EM release 36. P. bulbosum. 
Blades less than 5 mm. wide; culms rarely as much as 1 meter 
Peep ee eee Vavau g ate; coohale ney urate a: os Mls ge 2 erred ayaa 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 
MOB Crt sereee acini lc a Sharad a, Stee yoy aie ae MA fore nck ara A 30. P. plenum. 
34. Panicum maximum Jacq. 
Panicum maximum Jacq. 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. 
SruvaALoA: Mazatlin, Rose, Standley & Russell 14121. 
Couima: Paso del Rio, Hmrick 3. . 
Veracruz: Cordoba, Hitchcock 6410, Finck 8, Kerber 48. Jalapa, Hitchcock 
6621.. Huitamalco, Liebmann 425 
in part. Veracruz, Hitchcock 6562. 
San Francisco, Smith 1409. Zacu- 
apan, Purpus 3774. 
Yucatan: Izamal, Gaumer 719. 
Britiso Honpuras: Manatee Lagoon, 
Peck 195 (Gray Herb.). 
GUATEMALA: Escuintla, Smith 2705, 
2706, Hitchcock 9001. Morales, Kel- 
: lerman 6267. Gualdn, Deam 6268. 
Fig. 47.—Distribution of P, maximum. Finca Sepacuité, Alta Verapaz, 
Cook & Griggs 579. 
Honpuras: Puerto Cortez, Kellerman 4725. 
Satvapor: San Salvador, Velasco 2. Izalco, Pittier 1960. Without locality, 
Renson 293. 
