MACLOSKIE : GRAMINE^E. 



239 



enclosed by hairs ; floral glume like -the empty glumes, acute ; palea 

 bicuspidate, marginally long-ciliate. Occasionally viviparous. (Fig. 41.) 

 Patagon. (Port Eden) ; Fuegia. 



20. F. PURPURASCENS Banks & Sol. 

 Stoloniferous. Culms tall, to one meter, slender, glabrous, remotely 



nodose. Leaves plane in part, acuminate, shorter than the 

 culm. Panicle lax, inclined, its rays elongate, few-flowered 

 at the apex. Spikelets oblong, 12 mm. long, about 8-flow- 

 ered ; glumes 3-nerved, lanceolate, the upper thrice larger ; 

 flowers glabrous ; floral glume 5-nerved, 3-toothed, the 

 midtooth awned. (Fig. 43.) 



Magell. ; Sta. Cruz Valley (Hatcher) ; Fuegia (Hatcher). 



21. F. PYROGEA Speg. 



Perennial, cespitose, small, 20-30 cm. tall, the leaves 

 shorter than the pubescent culm; ligules none, but sheaths 



ascens. Spikelet. 



auricled above ; the leaf-blades subulate, glabrous, slender, 

 rigid, obtusely pointed. Panicle as a lax spike, the rays paired. Spike- 

 lets lanceolate, compressed, 3-flowered. Glumes unequal, subcarinate. 

 Floral glume 3-nerved, scabrid, long awned. Palea hyaline-bifid. 



S. Fuegia, at Ushuaia, found once only, but abundant. (Speg.) " Marked 

 by the leaves being without ligules, the sheaths having bilaterally unequal 

 auricles, subulate lamince, and pubescent culms." 9 



22. F. SERRANOI Phil. 



Culm tall, naked a great way at the top, smooth ; ligules short. Pan- 

 icle 22 cm. long, few-flowered; the semi-whorls far distant, each ray 

 2-branched, and each branch 5-spiculate at the top. Spikelets 8-io-flow- 

 ered, 18 mm. long;' floral glume 8 mm., cuspidate. 



W. Patagon., by Rio Palena. 



23. F. SHUKA Speg. 



Perennial, cespitose, small, 12-30 cm. tall, the leaves involute, glabrous, 

 scarcely shorter than the culms; ligules long, acute, exsert. Panicles 

 spike-like ; the rays in 2's or 3*5. Spikelets lanceolate, compressed, 4-flow- 

 ered. Glumes equal, long, navicular-carinate. Floral glume relatively 

 broad, 7-8 mm. by 2 mm., rough, apically mucronate, not awned. 



