234 CONTRIBUTION'S FROM THE NATIONAL BBRBABXUM. 



Guatemala.: Pan-?amala, ./. D. 8mith"18&3; Tiirckheim'W. Ooban, Tiirckkcint LI. 2136, 

 II. 2183. El Palmar, Kellerman 6262. Volcan Atitlan, Kellcrnian 5781. Volcis 

 del Fuego, Seler 2422. 



Costa Rica: Rancho Redondo (Goicoechea), Jimenez 990. "(Jabeceras del J Jk is, ' 

 Pittier 10573. 



Colombia: Bogota, Apollinaire & Arthur 12. 



Peru: Santa Ana, Cook & Gilbert 1632. 



^ EXCLUDED SPECIES. 



The following names at some time included in Pennisetum comprise only those 

 based on species found in America: 



Pennisetum corrugatum (Ell.) N iitt. = Chaetochloa corrugata (Ell.) Scribn. 



Pennisetum crusgalli (L.) Baums;. =Echinochloa crusgalli (L.) Beauv. 



Pennisetum geniculatum (Lam.) J acq. = Chaetochloa geniculata (Lam.) Millsp. & Chase. 



Pennisetum germanicum (Beauv.) Baumg. = Chaetochloa italica germanica (Hill.) 

 Scribn. 



Pennisetum italicum (L.) R. Br. =?= Chaetochloa italica (L.) Scribn. 



Pennisetum laevigatum (Muhl.) Nu.tt. = Chaetochloa geniculata (Lam.) Millsp. & Chase 



Pennisetum montanum (Griseb.) Hack. —Hymenachne montana Griseb. 



Pennisetum myosuroides (II. B. K.) Spren<_ r .= Cenchrus myosuroides H. B. K. 



Pennisetum pungens Nutt. = Cenchrus myosuroides H. B. K. 



Pennisetum scandens (Schrad.) Jacq. = Chaetochloa scandens (Schrad.) Scribn. 



Pennisetum verticillatum (L.) R. Br. = Chaetochloa verticillata (L.) Scribn. 



Pennisetum viride (L.) R. Br. = Chaetochloa viridis (L.) Scribn. 



