194 PATAGONIAN EXPEDITIONS I BOTANY. 



spike-like, obscurely violascent, subcontinuous. Spikelets small, i -flow- 

 ered ; rachilla villous, more than half as long as the flower. Glumes sub- 

 equal, violascent, scarcely carinate, not scabrid, acutish, 3-nerved. Flower 

 slightly shorter than the glumes, and more pallid. Floriglume 5-nerved ; 

 the dorsal nerve usually ending in a short awn ; -apex truncate, 6-dentate, 

 its base densely surrounded with white hairs nearly as long as itself. 

 S. Patagon., in dry meadows by Rio Chico, near Chonkenk Aike. 



2. C. ERYTHROSTACHYA DeSV. 



C^llms cespitose, 5-12 cm., smooth. Leaves convolute, setaceous, 

 scabrid. Panicle purplish ; spikelets 25-35 mm. long. Lower glumes 

 subequal, narrow, acuminate, dorsally scabrid, scarcely twice as long as 

 the flowers. Floral glume ovate, 4-nerved, 2-lobed, the lobes 2-toothed, 

 awned above their base ; the awn twisted below. Palea shorter, and still 

 shorter in the sterile flowers. 



(Chili) ; Fuegia. 



3. C. FRETICOLA (Speg. sub Deyeuxia). 



Creeping, small ; c^ilms slender, sheathed to the top, 10-15 cm. tall. 

 Leaves small, plane, glabrous with short truncate ligules. Panicle small, 

 spike-like, few-flowered; spikelets i -flowered with a rudiment of a second. 

 Floral ghime obtusely toothed at top, not awned nor mucronate, embrac- 

 ing the longer palea. 



Fuegia; Magellan. 



4. C. FUEGIANA Speg. 



Cespitose, glabrous ; c^tlm erect, 20-25 cm - l n g> sheathed, rough up- 

 wards, exceeding the leaves ; leaves plane, ligule very short. Panicle 

 spike-like, its rachis rough, its rays short. Spikelets dense, 3 mm. long, 

 lanceolate, glumes equal. No rudiment. Flowers villous at base ; floral 

 glume awned below the apex. 



Magellan, Punta Anegada. S. Patagon. by R. Sta. Cruz. 



5. C. HIRTHI Phil. 



Tall and smooth. Panicle very large, lax, with 2's and 3's of cap- 

 illary branches which are naked below. Glumes 6 mm.; palea 4-toothed 

 above, the awn scarcely surpassing it. 



W. Patagon., Valley of Rio Palena. 



