882 



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



ed. 2. 1: 55. 1840, as synonym of 

 Gymnopogon racemosus Beauv. 



Stipa expansa Willd. ex Steud., Nom. Bot. 

 ed. 2. 2: 643. 1841, as synonym of 

 Gymnopogon racemosus Beauv. 



Gymnopogon distichophyllus Steud., Syn. 

 PL Glum. 1 : 218. 1854. Texas, Seubert 

 Herb. [coll. Vinzent] 128; Louisiana, 

 Hartmann 57. 



Sciadonardus distichophyllus Steud., Flora 

 33: 229. 1850; Syn. PL Glum. 1: 218. 

 1854, as synonym of Gymnopogon dis- 

 tichophyllus. Louisiana, Hartmann 57. 



Agrostis boeckeleri Seubert ex Steud., Syn. 

 PL Glum. 1: 218. 1854, as synonym 

 of Gymnopogon distichophyllus. Texas 

 [Vinzent 128]. 



Alloiatheros ambiguus Ell. ex Jacks., Ind. 

 Kew. 1: 83. 1893, as synonym of 

 Gymnopogon racemosus. 



Alloiatheros aristatus Raf. ex Jacks., Ind. 

 Kew. 1: 83. 1893, as synonym of 

 Gymnopogon racemosus. 



(2) Gymnopogon brevifolius Trim, Gram. 

 UnifL 238. 1824. Delaware. 



Anthopogon brevifolius Nutt. ex. Trim, 

 Gram. UnifL 238. 1824, as synonym 

 of Gymnopogon brevifolius Trin. 



Anthopogon filiforme Nutt., Amer. Phil. 

 Soc. Trans, (n. s.) 5: 152. 1837. Banks 

 of the Arkansas and in Delaware. 



(3) Gymnopogon chapmanianus Hitchc, 



Amer. Jour. Bot. 2: 306. 1915. San- 

 ford, Fla., Chase 4135. 



(4) Gymnopogon floridanus Swallen, N. 



Amer. Fl. 17: 607. 1939. Clay County, 

 Fla., Swallen 5596. 



GYNERIUM Willd. ex Beauv. 

 Gynerium sagittatum (Aubl.) Beauv., Ess. 



Agrost. 138, 153. 1812. Based on 



Saccharum sagittatum Aubl. 

 Saccharum sagittatum Aubl., PL Guian. 1: 



50. 1775. French Guiana. 

 Arundo sagittata Pers., Syn. PL 1: 102. 



1805. Based on Saccharum sagittatum 



Aubl. 

 Gynerium procerum Beauv., Ess. Agrost. 



Atlas, pi. 24. f. 6. 1812. Based on 



Saccharum sagittatum Aubl. 

 Arundo sagittata Aubl. ex Beauv., Ess. 



Agrost. 153. 1812. Error for Saccharum 



sagittatum Aubl. 

 Gynerium saccharoides Plumb, and BonpL, 



PL Aequin. 2: 105. pi. 115. 1813. 



Venezuela, Humboldt and Bonpland. 

 Arundo saccharoides Poir. in Lam., En- 



cycl. Sup. 4: 703. 1816. Based on 



Gynerium saccharoides Humb. and 



BonpL 



(164) HACKELOCHLOA Kuntze 

 (1) Hackeloehloa granulans (L.) Kuntze, 

 Rev. Gen. PL 2: 776. 1891. Based on 

 Cenchrus granulans L. 

 Cenchrus granulans L., Mant. PL 2: 575. 

 1771. East Indies. 



Manisuris granulans Swartz, Prodr. Veg. 

 Ind. Occ. 25. 1788. Based on Cenchrus 

 granulans L. The name was earlier 

 given (L. f. Nov. Gram. Gen. 40. pi. 1. 

 f. 4-7. 1779) without description or 

 basis. Manisuris, based on this species, 

 has been credited to Swartz (not 

 Manisuris L.), but Swartz does not 

 propose the genus as new. He includes 

 the original M. myuros L. and adds M . 

 granulans. 



Manisuris polystachya Beauv., FL Oware 

 et Benin 1 : 24. pi. 14. 1804. Oware and 

 Benin, West Africa. 



Tripsacum granulare Raspail, Ann. Sci. 

 Nat., Bot. 5: 306. 1825. Based on 

 Manisuris granulans Swartz. 



Rytilix glandulosa Raf., Bui. Bot. Seringe 

 1: 219. 1830. Change of name or slip 

 of the pen for "granulans," " Manisuris 

 granulans" being cited. 



Rytilix granulans Skeels, U. S. Dept. Agr., 

 Bur. Plant Indus. Bui. 282: 20. 1913. 

 Based on Cenchrus granulans L. 



(86) HELEOCHLOA Host ex Roemer 



Heleochloa alopecuroides (Pill, and Mit- 

 terp.) Host, Icon. Gram. Austr. 1: 

 23. pi. 29. 1801; ex Roemer, Collect. 

 Rem. Bot. 233. 1809. Based on 

 Phleum alopecuroides Pill, and Mitterp. 

 Phleum alopecuroides Pill, and Mitterp., 

 Iter Posegan. 147. pi. 16. 1783. 

 Europe. 

 Crypsis alopecuroides Schrad., Fl. Germ. 1: 

 167. 1806. Based on Heleochloa alope- 

 curoides Host. 



(1) Heleochloa schoenoides (L.) Host, 



Icon. Gram. Austr. 1: 23. pi. 30. 1801 

 ex Roemer, Collect. Rem. Bot. 233 

 1809. Based on Phleum schoenoides L 



Phleum schoenoides L., Sp. PL 60. 1753 

 Southern Europe. 



Crypsis schoenoides Lam., Tabl. Encycl. 1 

 166. pi. 42. 1791. Based on Pldeum 

 schoenoides L. This name is spelled C. 

 schenoides by Beauv., Ess. Agrost. 23. 

 1812. 



(62) HELICTOTRICHON Besser 



(2) Helictotrichon hookeri (Scribn.) Henr., 



Blumea 3: 429. 1940. Based on Avena 

 hookeri Scribn. 



Arena pratensis var. americana Scribn., 

 Bot. Gaz. 11: 177. 1886. Based on A. 

 versicolor as described by Hooker (Fl. 

 Bor. Amer. 2: 244. 1840), not A. versi- 

 color VilL, 1779. Rocky Mountains, 

 Drummond [209]. 



Avena hookeri Scribn. in Hack., True 

 Grasses 123. 1890. Based on A. versi- 

 color as described by Hooker. 



Avena americana Scribn., U. S. Dept. 

 Agr., Div. Agrost, Bui. 7: 183. f. 165. 

 1897. Based on A. pratensis var. 

 americana Scribn. 



