HITCHCOCK AND CHASE TROPICAL NORTH AMERICAN PANICUM. 521 



97. Panicum villosissiniuia Nash. 





V 1 -^ 





f ^ 



^|8^ 



Pi ^&"^ 





M^^ 



Panicum villosissimum Nash, Bull. 

 Torrey Club 33: 149. 1896; Contr. ^ 

 U. S. Nat. Herb. 15: 233. 1910. 



DISTRIBUTION. 



Dry open woods, eastern United 

 States; also in Guatemala. The type 

 specimen from Georgia. 



Guatemala : Guatemala City, 

 Hitchcock 9106. 



t^ 



^ ' "' \'"] \ ' 



\\\ 



""Wf^ 





^^ 



Fig. 123. — Distribution of P. villosissimum 



98. Panicum pseudopubescens Nash. 



Panicum pseudopubescens Nash, Bull. 

 Torrey Club 26: 577. 1899; Contr. U. S- 

 Nat. Herb. 15: 235. 1910. 



DISTRIBUTION. 



Sandy open woods eastern United States; 

 also in San Luis Potosi. The type speci- 

 men from Alabama. 



San Luis Potosi: Without locality, 



S chaff ner 146. Fig. 124.— Distribution of P. pseudopubescens. 



SPHAEROCARPA. 



Culms spreading ; panicle nearly as broad as long; spikeleta 1.6 



to 1.8 mm. long 99. P. sphaerocarpon. 



Culms erect or ascending; panicle never more than two- thirds 



as broad as long; spikelets 1 to 1.2 mm. long 100. P. erectifolium. 



99. Panicum sphaerocarpon Ell. 



Panicum sphaerocarpon Ell. Bot. S. C. & Ga. 1: 125. 1816; Contr. U. S. Nat. Herb. 



15: 251. 1910. 



distribution. 



Sandy soil and gravelly banks, eastern United States through Mexico to northern 

 South America. The type specimen from Georgia. 

 San IjUIS Potosi: Without locality, Schaffner 147. 

 Michoacan: Sierra de San Andres, Ross 381. 

 Puebla: Chinantla, Liebmann 327. Teziutlan, Orcutt 3952. 

 Veracruz: Orizaba, Amer. Gr. 



Nat. Herb. 155, Bottexi. Ja- 



lapa,Pnn5rZe7883,8344,jffiic/j- 



cock 6607, 6633. 

 British Honduras: Manatee La- 

 goon, Peck 61 (Gray Plerb.). 

 Guatemala : Guatemala City, 



Hitchcock 9105 . Cobdn , Turck- 



heim 56, 3829. Volcano Pa- 



caya, Kellerman 6236. 

 CostaEica: Copey, TonduzlUQQ. 



San Pedro de la Calabaza, Tonduz 10745. Pdramoa del Abejonal, Tonduz 7878. 

 Panama: El Boquete, Hitchcock 8172. Dolega, Hitchcock 8343. 

 Venezuela: Without locality, Fendler 1%"^%. 



Fig. 125. — Distribution of P. sphaerocarpon. 



