THE NORTH AMERICAN SPECIES OF PENNISETUM. 



217 



m 



Setaria glauca Beauv. Ess. Agrost. 51, 178. 1812. The name is based on Panicum 

 glaucum L., though Beauvois applied it to a species of Chaetochloa. 



Pennisetum spicatum Roem. & Schult. Syst. Veg. 2: 499. 1817, 

 as synonym of Penicillaria spicaia Willd.; Koern. in Koern. & Wern. 

 Handb. Getreid. 1: 284. 1885. Based on Holcus spicatus L. 



Panicum spicatum Roxb. Fl. Ind. 1: 286. 1820. Based on Holcus 

 spicatus L. 



Penicillaria plukeneti Link, Hort. Berol. 1: 221. 1827. "P. Pluk- 

 enetti Hort. Plukenet Aim. t. 32. /. 4. W[illdenow] E[numeratio] 

 1037." Both references are identifiable as P. glaucum. 



Chamaeraphis glauca Kuntze, Rev. Gen. PI. 2: 767. 1891. Based 

 on "Setaria glauca Beauv.," that being based on Panicum glaucum 

 L. Kuntze applied the name to a species of Chaetochloa. 



Ixophorus glaucus Nash, Bull. Torrey Club 22: 423. 1895. Based 

 on Panicum glaucum L., but the name applied to Chaetochloa 

 lutescens (Weigel) Stuntz. 



Chaetochloa glauca Scribn. U. S. Dept. Agr. Div. Agrost. Bull. 4: 

 39. 1897. Based on Panicum glaucum L., but the name applied 

 to Chaetochloa lutescens (Weigel) Stuntz. 



There has been srreat confusion as to the names referable to this 



Fig. 66. — Pennisetum glaucum. From McCarthy, North Carolina. 



species. As Hooker says, ' ' The synonymy of the species is almost inextricable. ' ' The 

 synonymy here given includes only those names that are based on Linnaean names. 

 183104—20 2 



