32 NORTH AMERICAN FLORA [Volume 25 



and slightly notched or mucronate at the apex, deep-green above, bright-green beneath, 

 glabrous except for occasional hairs beneath and on the margins ; scapes sparingly pubes- 

 cent, or glabrous in age; cymes 5-11-flowered ; pedicels 1-3 cm. long, glabrous, at least in 

 age ; sepals lanceolate to linear-lanceolate, 7.5-9 mm. long, more or less ciliolate, especially 

 the outer ones which are purple-margined, each bearing two long apical tubercles ; petals 

 deep-purple, 20-25 mm. long; shorter and longer filaments minutely pubescent, the longer 

 ones each with a prominent appendage on the back. 



Type collected on the western slope of Mt. Zempoaltepec, Oaxaca, Mexico, July 5-13, 1894, 

 E. W. Nelson 550. 



Distribution : Known only from the type locality. 



7. Ionoxalis cuernavacana Rose, Contr. U. S. Nat. 

 Herb. 10: 111. 1906. 

 Plants 15-30 cm. tall, the bulb-scales many-ribbed; leaves often about one half as tall 

 as the scape, the petioles more or less pubescent with brownish hairs ; leaflets 4, the blades 

 2-7.5 cm. long or sometimes smaller, broadly obovate, truncate at the apex, pale-green or 

 somewhat glaucous, pubescent at the base, and often with few hairs on the surfaces ; scape 

 pubescent with scattered hairs ; cymes 5-11-flowered ; pedicels 1-2 cm. long, glabrous ; 

 sepals broadly oblong to oblong-obovate, 4.5-5 mm. long, often ciliate at the apex, each 

 bearing several irregular apical tubercles ; petals violet, 14-20 mm. long ; shorter filaments 

 glabrous ; longer filaments pubescent above, each with an appendage near the base. 



Type locality : Canon above Cuernavaca, Morelos, Mexico. 

 Distribution: Morelos. 



8. Ionoxalis Rosei Small, sp. nov. 



Plants 25-60 cm. tall, the bulb-scales several-ribbed ; leaves, at least some of them, 

 often n earh- as tall, as the scape, the petioles nearly glabrous, or with scattered hairs; 

 leaflets 4 or 5, the blades 2-4 cm. long, obdeltoid, slightly refuse at the apex, pubescent at 

 the base, bright-green and almost glabrous above, paler or sparingly pubescent beneath ; 

 scape commonly bearing few hairs near the inflorescence ; cymes 6-15-flowered ; pedicels 

 1-2.5 cm. long, minutely viscid-pubescent ; sepals lanceolate to linear-lanceolate, 4.5-5.5 

 mm. long, minutely pubescent, each with 2 short apical tubercles ; petals violet, 15-20 mm. 

 long ; shorter filaments glabrous ; longer filaments copiously pubescent, each with a prom- 

 inent appendage near the base. 



Type collected near Tlalnepantla, Mexico, July 6, 1905,/. N. Rose, J. H. Painter & f. S. Rose 



Distribution : Known only from the type locality. 



9. Ionoxalis Deppei (Lodd.) Small. 



Oxalis Deppei Lodd. Bot. Cab. pi. 1500. 1S28. 



Plants 12-35 cm. tall, the bulb-scales several-ribbed ; leaves commonly about one half 

 as tall as the scape, the petioles sparingly pubescent; leaflets 4, the blades 2-4 cm. long, 

 broadly obovate or orbicular-obovate, truncate or nearly so at the apex, bright-green and 

 purple-blotched above, paler and sparingly pubescent beneath ; scape less pubescent than 

 the petioles ; cymes 8-14-flowered ; pedicels 1-2.5 cm. long, pubescent ; sepals oblong, 5-6 

 mm. long, ciliate at the rounded apex, each bearing 2 or several apical tubercles; petals 

 red, 18-22 mm. long; shorter filaments glabrous; longer filaments pubescent, each with an 

 appendage near the base. 



Type locality : Mexico. 



Distribution : Mexico. 



Illustrations : Lodd. Bot. Cab. pi. 1500 ; Sweet, Brit. Fl. Gard. 2 : pi. 96. 



10. Ionoxalis occidentalis Rose, Contr. U. S. Nat. 



Herb. 10: 114. 1906. 



Plants about 10 cm. tall, the bulb-scales many-ribbed; leaves much shorter than the 



scape, the petioles very thick, glabrous; leaflets 4-6, the blades 8-14 mm. long, obcordate, 



glabrous, bright-green, but slightly paler beneath than above, rather sharply notched at 



