100 PANICACE.E. 



Some of the plants, wlieii only 15 cir high, with no panicle 

 above, produce subterranean fertile spikelets. 



Specimens collected on the i)inc-barrens, New Jersey, in I8S4. 



New .Jersey to Florida. 



"•i. A. Floridanum (Chapm.) Anij)Jiirarj)i<ni Horidauum Chap- 

 man. Fl. S. States 573 (18G0). 



An erect pale green perennial, 30-00 cm. high, branching below 

 from creeping rootstocks. Sheaths fringed on the margins ; blades 

 linear-lanceolate, rigid, nearly smooth. l*aiucle thin and narrow, 

 10-20 cm. long, containing spikelets which are lance-ellipticul, <i-7 

 mm. long. Emi)ty glumes 3, first 1-'^ mm. long, second and third 

 nearly cciual, 7-8-nerved; iloral glume membranous, 5-7-nerve(l, 

 its palea with 1-2 nerves toward each margin. Subterranean spike- 

 lets not seen. Anthers of the radical llowers im})erfect : grain 

 conipressed, globose, jiointed. '* I'alea> of the radical llowers crus- 

 taceous at maturity." Ciiapman's Flora. Banks of the Apala- 

 chicola IJiver. Florida. Sept. and Oct. 



35. (5). EriochloaII. W. K. Nov. (ion. et Sp. 1 : 94 (1815). 



Momu'lnie Beauv. Agrost, 49. /. 10 (1812). 



Hchpux Trin. Fund. Agrost. lO:} (1820). 



Guli/m-Jnic Link, Ilort. Herol. 1: 51 nS27). 



AgJi/ria Willd. ex Steud. Nom. Fd. 2. 1 : 37 (1840). 



A/i/rui Willd. ex Steud. 1. c. (W) (1840). 



Spikelets with 1 perfect llower. and in some cases with a second 

 staminate or neuter one. without protruding awns, with a callus, 

 annular or almost cupliko base, articulate on a short pedicel, in 1-2 

 rows, along one side of the simple branches of a simple panicle. 

 Empty glumes usually membranous, equal or suborpud; floral glume 

 of the terminal floret shorter, of a firm corioaceous texture, obtuse, 

 but tipped with a tuft of hairs or a point or short awn, not exceed- 

 ing the outer glumes: its palea of much the sanu' texture. Stamens 

 3. Styles distinct, rather long. (J rain enclosed, but not adherent. 



Bentham, in Floha Aisthaijkxsis and in (iKXKitA Planta- 

 RUM, defines this genus as 1 -flowered. In accordaiuic with a sugges- 

 tion by Vasey. in Botanical (iAZirrn;. p. 90, 1884, I have changed 

 the generic character to include Panicum inoUe ^lichx., which 



