270 PATAGONIAN EXPEDITIONS I BOTANY. 



4. U. LECHLERIANA Steud. 



Root fibrous, thickened. Culm erect, round-angular, 45 cm. tall, 

 sheathed below. Leaves as- long, flat, margins rough. Spike lax, with 

 leafy scales at base, attenuate, male above. Scales oblong, obtuse, pale, 

 the edge brown, glabrous, exceeding the oblong-triquetrous, apically setu- 

 lose utricle. Awn hooked, exserted part as long as its utricle. 



Magellan, Fuegia, on Beagle Channel. 



5. U. MACLOVIANA Gaud. 



Culm simple, erect, 30 cm. high, trigonal, glabrous, the base leafy. 

 Leaves plane, erect, rigid, linear, rough inside and on edges. Spike 

 slender, erect, cylindrical, 4-5 cm. long, with a basal setiform leaf. Utricle 

 lance-oblong, plano-convex, i -nerved, the angles ciliate-rough, equalling 

 the obtuse scales. Awn twice as long, hooked. 



(Montevideo) ; Magellan ; Falklands ; Fuegia, near woods. 



U. MACLOVIANA MONTANA (Phil.). 



Smaller than U. macloviana Gaud., its leaves shorter, subapically 

 toothed. Spicule extremely attenuate, 1 8 mm. by 2.5 mm. Scales similar 

 in male and female, orbiculate-ovate, utricle oblong-oval. 



S. Fuegia. (O. Nordenskjold.) 



6. U. MACROPHYLLA Steud. 



Root very fibrous, its neck thickened by sheaths of old leaves. Culm 

 erect, triquetrous, smooth, glabrous, firm, leafy at the base, 60 cm. high. 

 Leaves plane, 2-4 mm. broad, and much overtopping the culm, acumi- 

 nate. Spike cylindric, 7 cm. long, by 12 mm. thick, naked at base, apical 

 cone male. Scales fuscous, with whitish margin, the lower exceeding the 

 obtusely triquetrous, oblong, shining utricle. Seta uncinate, the exsert 

 part as long as the utricle. 



(Chili); W. Patagon. 



7. U. MACROTRICHA Franchet. 



Culm robust, 75 cm. tall, trigonal, rough-edged. Leaves as long, 

 broad-linear, smooth save on margin. Spike thick-cylindrical, attenuate 

 upward, acute. Scales oblong, obtuse, half as long as the utricles, pallid. 



