40 NORTH AMERICAN FLORA [VOLUME 25 



obcordate with a broadly V-shaped sinus, deep-green and sparingly pubescent above, paler 

 and copiously pubescent beneath, the lobes ovate; scapes sparingly pubescent ; cymes 4-15- 

 flowered ; pedicels 1-1.5 cm. long, glabrous; sepals oblong to oblong-ovate, 3-3.5 mm. 

 long, glabrous, each bearing 2 short apical tubercles; petals violet, 12-16 mm. long; 

 shorter filaments glabrous ; longer filaments pubescent, each with a prominent appendage 

 on the back below the middle. 



Type locality : Oaxaca, Mexico. 

 Distribution : Southern Mexico. 



43. Ionoxalis mucronata Rose, sp. nov. 



Plants 2-3 dm. tall, the bulb-scales several-ribbed ; leaves mostly less than one half as 

 tall as the scape, the petioles glabrous, except for some hairs below the leaf-blade ; leaflets 

 3, the blades obdeltoid, only slightly emarginate or truncate at the apex, glabrous, bright- 

 green above, glaucous beneath; scape glabrous; cymes about 9-flowered ; pedicels 1 cm. 

 long or slightly longer at maturity, glabrous ; sepals linear to oblong-lanceolate, 4.5-5 mm. 

 long, glabrous, each bearing 2 long apical tubercles ; petals violet, 12-14 mm. long; shorter 

 filaments glabrous ; longer filaments pubescent, each with an appendage on the back below 

 the middle. 



Tvpe collected on Sierra de Tepoxtlan, Morelos, Mexico, September 21, 1903,/. N. Rose & J. 

 H. Painter 7247. 



Distribution : Morelos. 



44. Ionoxalis quadriglandula Rose, sp. nov. 



Plants 1-1.5 dm. tall, the bulb-scales 3-ribbed; leaves fully one half as tall as the 

 scape, the petioles glabrous; leaflets 3, the blades lunate, 1.5-2.5 cm. wide, bright-green 

 above, glaucescent beneath, glabrous, the lobes ovate ; scape sometimes sparingly pubes- 

 cent on the lower part ; cymes 4-6-flowered ; pedicels 1-2.5 cm. long, glabrous; sepals lan- 

 ceolate to oblong-lanceolate, 4-5 mm. long, glabrous, each bearing 4 long and narrow apical 

 tubercles; petals violet, 11-14 mm. long; shorter filaments with few spreading hairs; 

 longer filaments pubescent with shorter hairs, each one appendaged on the back below the 

 middle. 



Type collected on Sierra de Tepoxtlan, Morelos, Mexico, May 28, 1904, C. G. Pringle8821. 



Distribution : Morelos. 



45. Ionoxalis latifolia (H.B.K.) Rose, Contr. U. S. Nat. 

 Herb. 10: 113. 1906. 



Oxalis latifolia H.B.K. Nov. Gen. & Sp. 5 : 237. 1822. 



Plants 1-2 dm. tall, the bulb-scales several-ribbed ; leaves mostly shorter than the scape, 

 the petioles finely pubescent ; leaflets 3, the blades broadly obdeltoid, 2.5-4.5 cm. wide, 

 emarginate at the apex, with the lobes directed outward, bright-green above, rather pale 

 beneath, with scattered hairs on both sides and ciliate at least when young ; scape finely 

 pubescent or nearly glabrous; cyme 6-13-flowered ; pedicels 12-22 mm. long, glabrous or 

 nearly so ; sepals oblong, sometimes broadly so, 3.5-4 mm. long, obtuse, glabrous, each 

 bearing two apical tubercles which are 2-lobed at the base; petals violet, 7-8 mm. long; 

 shorter filaments glabrous ; longer filaments pubescent, each appendaged on the back. 



Type locality : Near Campeche, Mexico. 

 Distribution : Southern Mexico and Yucatan. 

 Illustration : H.B.K. Nov. Gen. & Sp. pi. 467. 



46. Ionoxalis trinervia Rose, sp. nov. 

 Plants 1-1.5 dm. tall, the bulb-scales 3-ribbed ; leaves fully one half as tall as the scape, 

 the petioles glabrous ; leaflets 3, the blades obreniform, 2.5-3.5 cm. wide, deep-green and 

 glabrous or nearly so above, slightly paler and with scattered hairs beneath, the lobes 

 rounded ; scapes sparingly pubescent when young, glabrous in age ; cymes 4-11-flowered ; 

 pedicels 1-2 cm. long, glabrous; sepals oblong to linear-lanceolate or nearly linear, 4.5-5.5 

 mm. long, glabrous, each bearing 4 long and narrow apical tubercles ; petals violet, 11-15 



