236 PATAGONIAN EXPEDITIONS I BOTANY. 



Spikelets 10 mm. long, 4-5-flowered. Glumes unequal; floral glume 

 puberulous, 8 mm., shortly awned. 

 W. Patagon., by Rio Palena. 



12. F. GRACILLIMA Hook. f. 



Glabrous. Culms tall, nearly a meter, slender, exceeding the linear- 

 filiform, involute leaves. Panicle simple, long, few-flowered, inclined. 

 Spikelets rather large, y-9-flowered, exceeding the flat pedicels. Glumes 

 unequal, linear-oblong, scarious-bordered, the upper broader, 3-nerved ; 

 floral glume puberulous, shortly awned. Flowers remote at the base. 



(Calif.) Magellan; Valley of Rio Gallegos; N. and E. Fuegia (Dusen); 

 N. Patagon., by Lago Nahuel-huapi, W. Patagon., by R. Aysen, on the 

 elevated steppes (Dusen). 



F. GRACILLIMA BREVIFOLIA Speg. 



Leaves more rigid than in the type, half as long as the culm. Panicle 

 more lax and strict. 



Magellan, by Gregory Bay and Possession Bay ; Fuegia. 



F. GRACILLIMA PATAGONICA Speg. 



Leaves coarser, rigid, more trigonal. Floral glumes puberulous. S. 

 Patagon., by Rio Gallegos. 



13. F. LECHLERIANA Steud. 



Somewhat creeping. C^thns 30-60 cm. high, the floriferous and the 

 sterile mixed. Leaves narrow, canaliculate or convolute, puberulous ; 

 ligules short, ciliolate above ; lowest with short sheath and short blade. 

 Panicle 7-10 cm. long, the rays solitary and paniculately divided, the ray- 

 lets few-spiculate. Spikelets 5-y-flowered ; flowers lax. Ghtmes lanceo- 

 late, exceeding the lowest flower ; floral glume y-nerved, mucronulate 

 below the apex. 



Magellan. 



14. F. MURALIS Kth. 



Culm and sheaths glabrous. Leaves narrow-linear, internally pubes- 

 cent. Panicle simple, secund, its rays alternate. Glumes all glabrous ; 

 spikelets lanceolate, compressed, 5-9-flowered, with rough awns which 

 exceed the non-ciliate floral glumes. 



