340 F- Fedde und K. Schuster: Index novorum Siphonogamorum. [28 



Mulilenbergia mexicana (L.) Trin. var. commutata (Scribn.) Farw. 1. c. p. 181 

 (= M. mexicana [L.] Trin. subsp. commutata Scribu.). 



M. umbrosa Scribn. var. attenuata Scribn. ined. in Amer. Midi. Xat. IV (1915) 

 p. 216. — North Dakota. 



M. seet. Euc'ladium seet. nov. in Amer. Midi. Nat. VI (1919) p. 22. 



Culms strictly erect, not rooting at the lower nodes, minutely 

 retrorsely ijuberulent; glumes broad, one-haLf as long as the spikelet 

 or more, aciiminate or cuspidate; lemmas awx^less, long-acuminate or 

 ouspidate; no creeping scaly rootstock«; panicles slender, the branclies 

 appressed. 



M. (Sect. A. Mulilenbergia projjer) curtisetosa (Scribn.) Bush 1. c. p. 35 (= M. 

 Schreberi var. curtisetosa Scribn.). — Missouri (Bush n. 377); Illinois 

 (Clinton n. 92). 



M. Setigera (Scribn.) Bush 1. c. p. 38 (= M. sobolifera [Muhl.] Trin. var, 

 Setigera Scribn.). — Arkansas (Palmer n. 4425). 



M. (Seet. Stenocladium) brachyphylla Bush 1. c. p. 41. — Missouri (Palmer 

 n. 2734. 4575); Illinois. 



M. (Sect. Acroxis) commutata (Scribn.) Bush 1. c. p. 61 (= M. mexicana var. 

 commutata Scribn.). — New York. Delaware, Pennsylvania. Illinois, 

 Minnesota (Kirk n. 974, Herriot n. 80, Macoun n. 26245, Clarber n. 1890, 

 Kneucker n. 315, Chare n. 1540, Standley n. 9382, Davis n. 1030, Dodge 

 n. 17, Mills n. 860, Mearns n. 749, Griffiths n. 780); Oklahoma (Bush 

 n. 770. 771). 



M. (Sect. Acroxis) Torreyi (Kunth) Hitchcock ined. 1. c. p. 84 (= Agrostis 

 diffusa Muhl. = A. sylvatica Torr. = A. Torreyi Kunth = Mulilenbergia 

 sylvatica [Torr.] Torr. = M. sylvatica var. gracilis Scribn. = M. umbrosa 

 Scribn. = M. umbrosa var. attenuata Scribn. = M. sylvatica T. et Gr.). — 

 Maine to Minnesota, South Arizona, Virginia and Texas: Maine (Fernald 

 n. 528. 171); Massachusetts, Connecticut; New Jersey; Pennsylvania 

 (Smith u. 85); Maryland: (Chase n. 6850, Steele n. 298); Illinois (Chase 

 n. 941); Missouri (Palmer n. 218. Kellogg n. 26, 27, Standley n. 9382, 

 Bush n. 4887, Palmer n. 3187, Bush n. 4822; Mackenzie n. 548, Standley 

 n. 8546, Eggert n. 226, Bush n. 603, Mackenzie n. 427); Michigan (Dodge 

 n. 18); Jowa (Pammel n. 250. 111, Fink n. 461). 



M. polystachya Mackenzie et Bush 1. c. p. 91. — Missouri (Bush u. 4171, 

 Mackenzie n. 637); Illinois (Chase n. 1268); Wisconsin (Hitchcock n. 5095). 



Nastus carolinianus (Walt.) Lunell in Amer. Midi. Nat. IV (1915) p. 214 

 (= Cenclirus carolinianus Walt. = C. tribuloides Am. Authors, non L.). — 

 North Dakota. 



Neohusnotia A. Camus in BuU. Mus. d'Hist. nat. Paris XXVI (1920) p. 664. 

 Ce genre est intermediaire entre le genre americain Lasiacis (Griseb.) 

 Hitcli. et le genre Acroceras Stapf. 



N. tonkinensis A. Cam. 1. c. p. 664 (= Panicum tonkinense Balansa). — Tonkin, 

 Cochinchine, India. 



Paneion Lunell nom. nov. in Amer. Midi. Nat. IV (1915) p. 221 (= Poa L. 



Gen. 1737). 

 P. aridum (Vasey) Lunell 1. c. p. 222 (= Poa arida Vasey). ^ North Dakota. 



P. Buckleyanum mafus (Vasey) Lunell 1. c. p. 222 (= Poa Buckleyana Nasb 

 var. major [Vasey] = Poa tenuifolia Buckley var. major Vasey). — North 

 D akota. 



