62 PATAGONIAN EXPEDITIONS: BOTANY. 



FESTUCA PURPURASCENS Banks et Sol. Macl., p. 239. 



Syn. Festuca platyphylla Steud. 



In Sta. Cruz valley. Occurs also in W. Patagonia ; noticed by me from 

 Lago Argentine, Lago Viedma, Lago San Martin and the Rio Aysen 

 valley. 



Add Macl., p. 239 : 



F. RUBRA L. 



Root stoloniferous, cespitiferous. Culm decumbent, ascending, simple, 

 glabrous, striate, 30 cm. Leaves radical, complicate-setaceous ; culms 

 plane. Ligule 2-eared. Panicle spreading, spikelets about 5-flowered. 

 Varies, spikelets short villous, and others larger, woolly. 



S. Patagonia, north of Lago San Martin, on open places in beech 

 forests by Rio F6siles, 900 m. D. 



F. RUBRA L. var. SIMPLICIUSCULA Hack, apud Dusen, Neue 



Gefasspfl. Patag., Taf. 2, Fig. 2. 



Differt a typo panicula lineari, simpliciuscula, spiculis in parte superiore 

 solitariis, breviter pedicellatis, in paniculae basi binis, altera longius, altera 

 brevissime pedicellata ; foliorum ligulse eximie biauriculatae. 



S. Patagonia, north of Lago San Martin by Rio F6siles on watery 

 meadows, c. 800 m. D. 



Add Macl., p. 240 : 



F. URVILLEANA Steud. 



Root fibrous; culm erect, rigid (30 cm.), leaves densely crowded at 

 base, rigid, convolute, glabrous; some midway flabellately distichous, 

 exceeding the culms; panicle oblong, dense, spicate-contracted, 4 cm. 

 glumes subequal, with floscules acute, short ; one sessile, the other pedi- 

 celed ; lower valve scabrate on keel and margin, acuminate. 



Falkland Is., Fuegia. D. 



F. SCOPARIA Hook. f. 



Panicle few-flowered, subcoarctate. Spicules compressed, rather large, 

 4-5-flowered. Valves of glumes subequal, 3-nerved, shorter than the 

 flowers. Lower pale with a scabrid ridge, long bearded baseward, api- 

 cally acute. Leaves closely involved; very long linear-filiform, rigid, 

 attenuate. Culms erect, fasciculate, slender upwards and naked. 



