872 MISC. PUBLICATION 200, U. S. DEFT. OF AGRICULTURE 

 (116) HYDROCHLOA Beauv. 



(1) Hydrochloa caroliniensis Beauv., Ess. Agrost. 135, 165, 182. pi. 3. f. 18; 



pi. 24. f. 4. 1812. No specific description except explanation of figures. 



"Zizania natans Mich." (an unpublished name) is cited under the genus, 



and Z. fluitans Michx. is referred in the index to Hydrochloa. The name for 



pi. 3. f. 18 is given as H. caroliniana. 

 Zizania fluitans Michx., Fl. Bor. Amer. 1: 75. 1803. Not Hydrochloa fluitans 



Hartm., 1819. ^ The published locality, Lake Champlain, is an error. The 



type specimen indicates Charleston, S.C., Michaux. 

 Zizania natans Michx.; Beauv., Ess. Agrost. 136. 1812, name only; Bosc, 



in Trin., Mem. Acad. St. P6tersb. VI. Sci. Nat. 3 1 : 186. 1840, as synonym 



of Hydrochloa caroliniensis Beauv. The name is misspelled Zizania nutans 



in Steud., Norn. Bot. ed. 2. 2: 799. 1841. 

 Luziola caroliniensis Raspail, Ann. Sci. Nat., Bot. 5: 304. 1825. Based on 



Hydrochloa caroliniensis Beauv. 

 Hydrochloa fluitans Torr., Comp. Fl. North. Mid. States 354, 403. 1826. 



Not H. fluitans Hartm., 1819. Based on Zizania fluitans Michx. 

 Hydropyrum fluitans Kunth, Rev. Gram. 1: 7. 1829. Based on Zizania 



fluitans Michx. 

 Luziola caroliniana Trin.; Steud., Nom. Bot. ed. 2. 2: 79. 1841. Based on 



Zizania natans Bosc. 



(146) HYPARRHENIA Anderss. 



Hyparrhenia hirta (L.) Stapf, in Pram, Fl. Trop. Afr. 9: 315. 1918. Based 



on Andropogon hirtus L. 



Andropogon hirtus L., Sp. PL 1046. 1753. Southern Europe and Asia Minor. 

 Trachypogon hirtus Nees, Agrost. Bras. 346. 1829. Based on Andropogon 



hirtus L. 

 Sorghum hirtum Kuntze, Rev. Gen. PI. 2: 792. 1891. Based on Andropogon 



hirtus L. 



(1) Hyparrhenia rufa (Nees) Stapf, in Prain, Fl. Trop. Afr. 9: 304. 1918. 

 Based on Trachypogon rufus Nees. 



Trachypogon rufus Nees, Agrost. Bras. 345. 1829. Piauhy, Brazil, Martins. 

 Andropogon rufus Kunth, Re>. Gram. 1: Sup. XXXIX. 1830. Based on 



Trachypogon rufus Nees. 

 Sorghum rufum Kuntze, Rev. Gen. PI. 2: 792. 1891. Based on Andropogon 



rufus Kunth. 

 Cymbopogon rufus Rendle, Cat. Afr. PI. Welw. 2: 155. 1899. Based on 



Andropogon rufus Kunth. 



(45) HYSTRIX Moench 



(2) Hystrix californica (Boland.) Kuntze, Rev. Gen. PL 2: 778. 1891. Based 

 on Gymnostichum californicum Boland. 



Gymnostichum californicum Boland.; Thurb., in S. Wats., Bot. Calif. 2: 327. 

 1880. Near San Francisco, Bolander', Sausalito, Kellogg and Harford 1107. 



Asperella californica Beal, Grasses N.Amer. 2: 657. 1896. Based on Gym- 

 nostichum californicum Boland. 



Asprella californica Benth.; Beal, Grasses N.Amer. 2: 657. 1896, as synonym 



of Asperella californica. 

 (1) Hystrix patula Moench, Meth. PL 295. 1794. Based on Elymus hystrix L. 



Elymus hystrix L., Sp. PI. 560. 1753. [Virginia, Clayton.] 



Asperella hystrix Humb.; Mag. Bot. Roem. and Ust. 7: 5. 1790. Based on 

 Elymus hystrix L. 



Asprella hystrix Willd., Enum. PI. 132. 1809. Based on Elymus hystrix L. 



Gymnostichum hystrix Schreb., Beschr. Gras. 2: 127. pi. 47. 1810. Based on 

 Elymus hystrix L. 



Zeocriton hystrix Beauv., Ess. Agrost. 115, 182. 1812. Presumably based on 

 Elymus hystrix L. 



Asperella echidnea Raf., Amer. Monthly Mag. 4: 190. 1819. Based on Elymus 

 hystrix L. 



Elymus pseudohystrix Schult., Mant. 2: 427. 1824. Based on " Elymus 

 hystrix Nutt." (error for L., Nuttall applying the Linnaean name correctly). 



Asprella americana Nutt., Amer. Phil. Soc. Trans, (n.s.) 5: 151. 1837. Arkan- 

 sas, Nuttall. 



