120 I'AN1CA(K.E. 



/iisj)i'ili(ni Mulil. (Iniiii. l(»l (isiT). /'. iinn'irdfinii Miolix. Fl. 

 Hor. Am. 1 : 47 (iSo:}). 'I'iill mul coaivst', witli uwns sonu'tiincs 1-2 

 cm. Ion;;. Kouml with the .species. 



Miciii.iriiu, IViil f(.r M. A. ('. i:5. 



Var. sabulicolum (Nws) Triii. in llorl). Pdiiinini sd/n/licuJiDii 

 'Seoti, A<r\'()s{. Hras. 2: •.'.'iS (lS'*!t). O/i/isuwiifis sidndiraliis Kuntli, 

 Eiuim. IM. 1 : 14.") (is;5:5). Stout. Cd-lto cm. liigli. Spikdcts 

 laiico-olli[)tical. .")-(> mm. loniif. 



Mexico, /'ri/ii/lr 1404. 



Wet places. Mc\ic(t to South America. 



r>4. P. Palmeri Vasey. Contrib. V . S. Nat. Ilcrh. 1 : -^Sl 

 (ISIKJ). 



Aiimial ; culms r.'O-KSd cm. Jii,t>-li. erect, slciulcr. Liijulc 

 .short ; l)la(les smooth, ;5(i-4() cm. loiiii'. 2-4 cm. wide. Panicle 

 pyramidal, lo-'.H) cm. loiiir, rays siii;ude. the lon<;est 5-10 cm. long, 

 ilower-bearing to the base, rachis rough, ti(pietrous, less than 1 mm. 

 wide, straight or ilexuose. SpiUelets single. iml)ricate, alternate 

 on two sides of the rachis. snbsessile, t'ach s{)ikelet subtended ]>y a 

 bristle exceeding its own length, ovate-laneeohite, about 4 mm. 

 long: lirst glume about 1 mm. long, l-:5-nerved. second ll-i;{- 

 nervctl; iloral glunu' of the sterile tloret mu(di like the latter. T)- 

 nerved ; palea broad-oval, fertile lk)ret nearly smooth, ovate-ellipti- 

 cal, mucronate, 2..") mm. long. 



Mi'xico, PaJiinr IJT-.*; /'. S. Ih'pl. A;/riciiL, a specimen culti- 

 vated IVom seed sent from Mexico. 



'io. P. Reverchoni N'asey, Hull. l)ot. Divis. 1'. S. Dept. 

 Agricul. S: -'a (ISS'.l). 



A rather slender, sparingly branching perennial, '25-()(> cm. high, 

 Avith short, stout rootstocks. LiguK' a ciliatc I'ing ; l)lades firm, 

 llat, or involute, mostly scalirons, 1(1-15 cm. long, 1-2..') mm. wide, 

 points slender. I'aiucle very sim]>le, spikelike, much interrupted, 

 r)-!5cm. long, the longest ray 2-15 cm. long, the short pedicels 

 ea(!h bearing a short bristle below the apex. Spikeliki', oval, obtuse, 

 2-3.0 mm. long, tirst glume deltoid, o-o-nerved, less than half as 

 long as the sj)ikelet, second and third e(|ual, .">-"-nerved. fertile 

 lloret oval, i>lano-couvex, subacute, rugosi' with line transverse 



