PIPER NORTH AMERICAN SPECIES OF FESTUCA. 43 



Festuca octoflora hirtella Piper. 



See page 12. 

 See page 12. 



Festuca pacifica Piper. 



Festuca myuros L. 



Near Toluca, State of Mexico, Rose d: Painter 6786. 

 Mount Iztaccihuatl, Beam 22. 



Festuca megalura Nutt. 



See page 17. 



• 



Festuca rubra glaucodea Piper. 



See page 22. 



Festuca ovina elliptica (Beal). 



Festuca amplissima elliptica Beal, Grasses N . Am. 2 : 603. 1896. Type collected in 

 the Sierra Madre, Chihuahua, by Pringle (no. 1438). Also collected in the State of 

 Durango, by Kose (no. 2358). 



This plant is closely allied to F. ovina arizonica Hack., differing in its broader, 

 loosely involute leaves, which are scabrous above and smooth beneath, and perhaps 

 in a taller habit. Some specimens of Pringle' s 1438 are awnless, others are short- 

 awned. 



Festuca hephaestophila Nees. 



Festuca liephaestophila Nees; Steud. Syn. PL Gram. 310. 1854. Type Hartweg's no. 

 629 from Yolcan de Agua, Guatemala. 



DESCRIPTION. 



Densely tufted, the underground portions of the stems erect or decumbent, densely 

 covered by the persisting brown scarious sheaths; culms erect, 10 to 40 cm. high, 

 smooth, 2-jointed; sheaths of the culm elongated, extending halfway to the panicle 

 or more, smooth, somewhat glaucous; ligule very short; blades straight or curved, 

 closely involute, firm, glaucous, acute at apex, slightly scabrous on the margins, 2 to 

 6 cm. long; panicle purple, erect, narrow, usually close, 2 to 5, rarely 8, cm. long; 

 rays short, solitary, scabrous on the angles, fioriferous nearly to the base; spikelets 

 3 or 4-flowered, 5 to 6 mm. long, somewhat glaucous; joints of the rachilla cylindric- 

 clavate, nearly smooth, 1 mm. long; glumes unequal, smooth or scabrous on the 

 keels, scarious-margined, the lower subulate-triangular, 1-nerved, 2 to 3 mm. long, 

 the upper 3-nerved, rarely 5-nerved, 4 to 4.5 mm. long; lemma firm, convex, faintly 

 nerved, ovate-oblong, acuminate, smooth, 3 to 5 mm. long; palea oblong, shorter 

 than the lemma, bifid at apex, the nerves scabrous; ovary glabrous at apex. 

 The following specimens have been examined: 



Mount Orizaba, Liehmann 409. 



Mount Orizaba, Pringle 8588. 



Nevada de Toluca, Pringle 4221. 



Iztaccihuatl, Purpus 228. 



Festuca liebmanni Fourn. 



Festuca liebmanni Fourn. Mex. PI. 2: 124. 1881. 



'Toliis scaberrimis longissimis lineari-lanceolatis, summo paniculam superante, 

 ligulabrevifimbriata; panicularacemosaerecta, axillisglabris, radiolisappressisscabris; 

 spiculis 4-5-floris, flore terminali abortive; glumis valde inaequalibus, superiore fere 

 12364—06—4 



