t6 0ONTRIBDT1ON8 FROM TIN- NATIONAL HERBARIUM. 



3-nerved, i nun. long; lemma lanceolate, plainly 5-nerved, convex, the whole back 

 appreesed-ecabrous or Dearly hirtellous, about 7 mm. long, acuminate or often Bhort- 

 awned; palea linear-lanceolate, clefl at apex', about equaling the lemma, thenervee 

 scabrous, the inflexed Bides half a> broad aa the internerve. 



F stuca fratercula Rupr. 

 ala Rupr.; Fourn. Mex. PL 2: 124. 1881. 



"Culmo fere tripedali scabro; foliis :> '" latis, retrorsum scabris, longis, plania, 

 apice longe convolutis; ligula brevissima; panicula libera effusa fere pedali folium 

 siunmum longe snperante, radiia geminis divaricatis inaequalibue parce divisis; 

 spiculis 3-floria cum terminal i quarto abortivo; glumis inaequalibus acutis, floribus 

 teretibus remotis, palea inferiore acuta potissimum in floribus summis breviter 

 mucronata, glabra; squamulis lanceolatis ovarium aequantibus. 



■■ In hum id is inter Pinoe montis < trizabensis, 1 1-12000 ' i Gal. n. 5778) ; ( 'umbn <i< 

 Estepa, augusto I Liebm. 



We have seen no Mexican specimens of tin.- species, but have referred toil several 

 collections from the United states." 



Festuca amplissima Rupr. 



ica amplissima Rupr.; Fourn. Mex. PI. 2: 125. L881. 

 Type collected by < S-aleotti, " Secua rivuloa pr. Vaqueria del Jacal in monte < >ri/.a- 

 bensi," 3.225 meters. 



DBSCBIPTION. 



Culms stout, l to 1.5 meters high, smooth or scabridulous, firm, 4 or 5- jointed; 

 sheaths glabrous, striate above, shorter than the internodes, the lowermost becoming 

 fibrous when old; ligule very short, truncate: blades flat or loosely involute, fi to 12 

 mm. broad, 30 to 50 cm. long, slightly scabrous on each aide; panicle 30 to 60 cm. 

 long, erect, diffuse; ray- in about 8 sets of 2 or :! each, scabrous, branched; spikeleta 

 green or purplish, long-stalked, oblong-elliptic, flattened. 5 to 9-flowered, 9 to 13 

 mm. long; joints of the rachilla scabrous, about 1 mm. long; glumes unequal, gla- 

 brous, the lower 1-nerved, :'» to 3.5 mm. long, the upper broader, 3-nerved, 5 to 

 *> nun. long; lemma <> to 7 mm. long, lanceolate, finely scabrous, suhcarinate. the 

 nerves rather prominent, acute: palea acute, a little shorter than the lemma, the 

 nerve- scabrous, the inflexed sides about half the width of the internerve. 

 Readily recognized by its stout habit and ample Moribund panicle. 

 The Following specimens have been examined: 



Sierra de Ajusco, FViw^te9555. 



Sierra de San Felipe. C. L. Smith 924. 



Mount Zempoaltepec, Nelson 648. 



Mountains near Patzcuaro, Pringle 3945. 



Mount Orizaba, ZAebmann (ex Fournier). 



Deeierto Viejo, Bourgeau 1307 (ex Fournier). 



Festuca livida (II. B. K. ) Willd. 



Bromus lividus II. B. K. Nov. Gen. & Sp. 1: 150. pi. 689. L815. "Orescit in alta 

 planitie Tolucana, alt. L380 hexap." 

 Schedonorus lividus R. iv S. Syst 2: 7<>7. 1817. 

 Festuca livida Willd. in Spreng. Syst. 1: 258. 1825. 

 HeUeria livida Fourn. Mex. PL 2: 129. 1881. All of these are based on Bromus 



Inn Ins II. B. K. 



Festuca grandiflora Steud. Syn. PI. Gram. -'ill. 1854. Based on Heller's 315 from 

 Volcano de Toluca. 



"See p. :;<» above, 



