

168 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Maryland: Garrett County, Smith in 1879. Hyattsville, Scribner in 1888. 



District of Columbia: Merrilll72; Vasey in 1885; Chase 2986. 



Virginia: Princess Anne County, Kearney 2158. 



North Carolina: Magnetic City, Wetherby 8. 



South Carolina: Orangeburg, Hitchcock in 1905. 



Florida: Quincy, Combs 396. 



Tennessee: Knoxville, Scribner. 



Alabama: Selma, McCarthy in 1888. Eufaula, McCarthy in 1888. 



Louisiana: Baton Rouge, Hitchcock in 1904. Alexandria, Ball 487. Burnside, 



Combs 1409. Shreveport, Ball 97. Rayville, Ball 23a. Calhoun, Ball 44. 

 Texas: Big Spring, Hitchcock 13406. Abilene, Bentley in 1899. 

 Oklahoma: Verdigris, Bush 743. 

 Oregon: Ontario, Griffiths & Morris 937. Albina, Suksdorf 2885. Linnton, Suls- 



dorf 1684. 

 New Mexico: Mesilla Park, Standley in 1906. 

 California: Threerivers, Jepson 4718. 

 Jamaica: Cinchona, Hitchcock 9702; Harris 11272, 11457; Hart 740. 



6. Chaetochloa geniculata (Lam.) Millsp. & Chase. 



Panicum geniculatum Larn. Encycl. 4: 727 (err. typ. 737). 1798. "Je l'ai vue 

 depuis dans un herbier fait aux Antilles, & particulierment a la Guadeloupe." 

 Lamarck distinguishes this from Panicum glaucum by the short bristles and glabrous 

 leaves. The type has not been examined. 



Cenchrus parviflorus Poir. in Lam. Encyl.,6: 52. 1804. "Cette plante croit a Porto 

 Ricco. Elle a 6t6 communique^ a M. Lamarck par M. Ventenat." See remarks 

 under Setaria ventenatii. 



Setaria geniculata Beauv. Ess. Agrost. 51, 178. 1812. Based on Panicum genicula- 

 tum. Beauvois includes the latter name among the species of Panicum referred to 

 Setaria. In the index, under Setaria, the name geniculata appears with a question. 



Pennisetum geniculatum Jacq. Eclog. Gram. 3: pi. 26. 1815-1820. Based on 

 Panicum geniculatum Hornem. Cat. Hort. Hafn. 28; Willd. Enum. PI. 2: 1031. 1809. 

 The name is not published as new by Hornemann or Willdenow. 



Setaria gracilis H. B. K. Nov. Gen. & Sp. 1 : 109. 1816. "Crescit locis alsis, opacatis 

 inter Fusagasuga et Pandi inter 520 et 920 hexap. (Regno Novogranatensi)." The 

 type has not been examined, but the description identifies it as a slender-panicled 

 form of C. geniculata. 



Setaria purpurascens H. B. K. Nov. Gen. & Sp. 1: 110. 1816. "Quitensis prope 

 Chillo, in radicibus montis Turubamba." In the text this species is placed next to 

 S. glauca [lutescens], but it is stated that it is allied to <S. viridis. The description 

 states that the bristles are "fuscescentes." A portion of the type has been examined 

 at the Trinius Herbarium. It was marked "Ex herb. Humb." 



Panicum imberbe Poir. in Lam. Encycl. Suppl. 4: 272. 1816. "In America septen- 

 trionali & Brasilia." The species is distinguished from "P. glaucum" [lutescens] by 

 the absence of hairs on the leaves and at the mouth of the sheath. The type has 

 not been examined. 



? Panicum pumilum Poir. in Lam. Encycl. Suppl. 4: 273. 1816. The origin of the 

 specimen, seen by Poiret in the Desfontaines Herbarium, is stated to be unknown. 

 The type has not been examined by the writer and the name is referred to Chaetochloa 

 geniculata with doubt. 



Panicum laevigatum Muhl.; Ell. Bot. S. C. & Ga. 1:112. 1816. "Grows on sea 

 islands (on Edings' plentifully), along margins of the salt water." The type is in 

 Muhlenberg's herbarium at the Philadelphia Academy. 1 Elliott's specimen, labeled 



'U. S. Dept. Agr. Div. Agrost. Circ. 27: 2. 1900. 

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