MACLOSKIE I GRAMINE/E. 243 



7. B. PELLITUS Hack. 



Culm low, 20 cm., erect, rather robust, pubescent. Leaves velvety, 

 linear-obtuse, 4 cm. by 2-3 mm., the ligules truncate. Panicle 4 cm., ob- 

 long, crowded, simple, its rays i-spiculate. Spikelets oval, to 15 mm. 

 long, 5-flowered, with dense hairs ; glumes 3-nerved, 6 and 8 mm. long ; 

 floral glume dorsally velvety, 5-nerved, shortly awned ; palea as long, 

 truncate, its keels ciliolate. 



Has the habit of B. mollis L. 



S. Fuegia. (Dusen.) 



8. B. PICTUS Hook. f. 



Culm simple, 30 cm. tall, strict, puberulous. Panicle simple, 4-spicu- 

 late, the spikelets exceeding the pedicels. Glumes linear-oblong, sub- 

 acute, 5-flowered, purple ; floral glume linear-ovate, obtuse, with a short 

 infra-apical awn, y-nerved, silky towards the base. 



Magellan, Punta Arenas; E. Patagon. Characteristic of the grassy 

 plains. Fuegia. 



9. B. TRINII Desv. 



Cespitose annual, 15-90 cm. high. Leaves glabrous or hairy. Ligules 

 ovate, "toothed. Spikelets 2-6-flowered, 1 2-25 mm. long, subcompressed, 

 ovate or lanceolate. Glumes linear, acuminate, i -3-nerved; flowers not 

 imbricate. Floral glume linear-oblong, attenuate both ways, 5-nerved, 

 hirtellate, 2-lobed, awned between the lobes, the awn twisted, geniculate, 

 divaricate. 



Patagon., at Puerto Madryn ; in woods on Cordilleras. 



10. B. UNIOLOIDES Kth. Southern Chess. 



Culm erect, to 90 cm. tall, 4~5-leaved, mostly glabrous. Lower 

 sheaths often overlapping and often rough ; leaf-blades flat, scabrous on 

 upper surface. Panicle rays erect or spreading, in 2's or 3*5, few-spiculate 

 upwards. Spikelets compressed, 6-io-flowered. Empty glumes unequal, 

 acute, firm, 3-5- and 5~9-nerved ; floral glumes very acute, 12-16 mm. 

 long, awn short or wanting. Palea 10 mm., pectinate-ciliate, incurved. 



(In southern U. S. and through S. Amer. Brit. & Br. i, 224.) N. 

 Patagon.; S. Patagon. (Dusen); Magellan; Fuegia. 



B. UNIOLOIDES HIRSUTUS Speg. 



Dwarf, 20-40 cm. high. Leaves laxly pilose, their sheaths retrorsely 

 hirsute. 



