796 MINNESOTA BOTANICAL STUDIES. 



RETEROPOGON Pers. Syn. 2 : 533. 1807. 



Heteropogon contortus (L. ) Beauv. in R. & S. Syst. 2 : 836. 



1817. 

 Andropogon contortus L. Sp. PI. 1045. 1753. 

 A common grass on the dry and hot slopes of the lee side of 

 the island of Kauai, growing among lava rocks. 



July to October (2522); original locality, "in Indiis." 



ISACHNE R Br. Prodr. PL Nov. Holl. 196. 1810. 



Isachne pallens Hillebr. PI. Haw. Is. 504. 1888. 



This species was collected on rocks at the base of Hanapepe 

 Falls, but was not seen elsewhere. It hung from the face of a 

 perpendicular rock, where it was continually washed by the 

 small streams of water which trickle down the sides of the rock. 

 Hillebrand's type came from the woods of eastern Oahu. 



July 2 (2489). 



CHAETOCHLGA Scribn. Bull. No. 4, U. S. Dept Ag. 

 Div. Agrost. 38. 1897. 



[Setaria Beauv. Agrost. 113. 1812, not Ach. 1789.] 



Chaetochloa glauca (L.) Scribn. Bull. No. 4, U. S. Dept. Ag. 

 Div. Agrost. 39. 1897. 



Panicum glaucum L. Sp. PI. 56. 1753. 

 Setaria glauca Beauv. Agrost. 51. 1812. 

 • Ixophorus glaucus Nash, Bull. Torr. Bot. Club, 22: 423. 1895. 



Very abundant in the Hanapepe river valley, and on adjoin- 

 ing slopes. It is not recorded by Hillebrand, and if introduced 

 since his time, must have spread rapidly, as it is well estab- 

 lished, covering the hillsides in many places. 



June 29 (2469); original locality, "in Indiis." 



Chaetochloa verticillata (L ) Scribn. Bull. No. 4, U. S. Dept. 

 Ag. Div. Agrost. 39. 1897. 



Panicum verticillatum L. Sp. PI. Ed. 2, 82. 1762. 



Setaria verticillata Beauv. -Agrost. 51. 1812. 



Ixophorus verticillatus Nash, Bull. Torr. Bot. Club. 22: 422. 1895. 



Established along streets, and in waste ground about Hono- 

 lulu. Collected at Waikiki. 

 March 20 (1961). 



