32 New Species of South Amekican Plants 



bearing above the middle a pair of lance-linear attenuate^ 

 hyaline bractlets, and at length mostly sharply reflexed at this-, 

 point, the flower again sharply inflexed. Calyx 3 mm. long 

 and nearly half the length of the corolla, green, or purplish, 

 thick, the sepals ovate. Longer stamens equaling the styles, 

 about 3 mm. long, the others a little shorter, the filaments, 

 thick, nearly distinct, the anthers very small. Ovary oval, 1.5 

 mm. long, the styles about the same, thick, the stigmas capitate,, 

 small. Capsule 5 mm. long, lance-ovoid. Seeds less than i 

 mm. long, nearly as broad, oval, acute, strongly flattened,, 

 narrowly margined. 



"Unduavi, Bolivia, 3,300 meters altitude, November 1910.'" 

 (Otto Buchtien, No. 2879.) 



lonoxalis pazensis. 



Leaves minutely puberulent and ciliate. Bulb sub-globular 

 or oval, some i cm. or more broad, clothed with the fibrous, 

 remains of the leaf-bases. Petioles to 2 dm. long, filiform,, 

 much more slender toward the base. Leaflets 3, from 6 to 12 

 mm. long, 10 to 20 mm. broad, almost equilaterally triangulate,, 

 broadly obcordate, the sinus acute, the lobes ovate, obtuse,. 

 3-nerved, thin, bright-green. Peduncles exceeding the peti- 

 oles and similar, the flowers umbellate, few, their pedicels to. 

 3 cm. long, filiform, subtended by scarious, ovate acuminate 

 bracts about 2 or 3 mm. long. Calyx about 7 mm. long, the 

 sepals lanceolate, obtuse, green below, scarious above with 5 

 strong gre?n nerves, the tubercles very small, narrow. Corolla 

 (violet ?) 2 cm. long. Longer stamens considerably longer 

 than the calyx, the anthers broad. 



Dissection material wanting. 



"Among shrubs on ridges near La Paz, Bolivia, 3,800. 

 meters altitude, January 13, 1907." (Otto Buchtien, No. 615.) 



lonoxalis buchtienii. 



Leaves almost imperceptibly puberulent. Bulbs firm, some- 

 nearly 2 cm! broad, clothed with ovate, acuminate and very 

 acute, ciliate scales. Petioles to 7 cm. long, slender, strongly 

 striate or sub-costate. Leaflets 3, sessile, 8 to 12 mm. long, 9. 

 to 15 mm. broad, ovate or sub-reniform with short-cuneate 

 base and deeply and broadly obcordate summit, the sinus acute^ 

 the lobes oval with rounded ends, thick, deep-green. Peduncles, 

 exceeding the leaves, the umbellate flowers rather numerous, 

 the pedicels to i cm. long, filiform, subtended by small ovate 

 scarious bracts. Calyx 6 mm. long, the sepals ovate, finely 

 nerved, the apical tubercles large and conspicuous, slenderly 

 grooved through the center. Corolla 14 mm. long, (violet ?) 

 finely nerved. Longer stamens shorter than the styles, the 



