38 NORTH AMERICAN FLORA [VolumB 25 



and glabrous above, paler and often sparingly pubescent beneath, the lobes lanceolate; 

 scapes pubescent with few scattered hairs ; cymes 15-30-flowered ; pedicels 0.5-1.3 cm. long, 

 glabrous; sepals broadly linear to lanceolate, 3.5-4 mm. long, glabrous, each bearing two 

 rather long apical tubercles ; petals violet, 8-11 mm. long; shorter filaments glabrous ; longer 

 filaments pubescent, each with an appendage on the back near the base. 



Type locality : Near Cuernavaca, Morelos, Mexico, 

 Distribution : Morelos. 



34. Ionoxalis tenuiloba Rose, Contr. U. S. Nat. Herb. 10; 115. 1906. 



Plants 1-1.5 dm. tall, the bulb-scales several-ribbed ; leaves about as tall as the scape, 

 the petioles glabrous ; leaflets 3, the blades4-6 cm. wide, glabrous, except for a few hairs at 

 the base, green, the lobes linear to narrowly linear-lanceolate, attenuate; scapes glabrous; 

 cymes 6-8-flowered ; pedicels 1-2 cm. long, glabrous ; sepals oblong, usually broadly so, to 

 oblong-ovate, 2.5-3 mm. long, glabrous, each bearing two thick apical tubercles; petals 

 violet, 6-8 mm. long ; shorter filaments glabrous ; longer filaments pubescent, each with 

 an appendage on the back below the middle. 



Type locality: Colima, Colima, Mexico. 

 Distribution : Known only from the type locality. 



35. Ionoxalis discolor (Klotzsch) Small. 



IQxalis Schiedeana Zucc. Abh. Akad. Muench. 2 : 352. 1837. 

 Oxalis discolor Klotzsch ; Dink & Dietr. Allg. Gartenz. 8: 257. 1840. 



Plants 0.5-1.5 dm. tall, the bulb-scales 3-ribbed ; leaves as long as the scapes or shorter, 

 the petioles glabrous or minutely puberulent ; leaflets 3, the blades obreniform, 1-1.8 cm. 

 wide, rounded or slightly retuse at the apex, glabrous, deep-green above, purple beneath, 

 those of the lateral ones essentially equilateral ; scapes glabrous or minutely puberulent ; 

 cymes 3-5-flowered ; pedicels 5-11 mm. long, glabrous; sepals lanceolate, sometimes nar- 

 rowdy so, or oblong-lanceolate, 4-5 mm. long, glabrous, each bearing two long and narrow 

 apical tubercles which are rounded at the base ; petals violet, 11-15 mm. long ; shorter fila- 

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

 middle. 



Type locality : Mexico. 



Distribution : Southern (?) Mexico. 



Illustration: Dink, Klotzsch & Otto, Ic. PI. Rar. 2 : pi. 29. 



36. Ionoxalis obliqua Rose, sp. nov. 



Plants 11-30 cm. tall, the bulb-scales 3-ribbed ; leaves about one half as tall as the 

 scape or more, the petioles glabrous or sparingly pubescent; leaflets 3, the blades 1.5-2 

 cm. long, obreniform, bright-green and glabrous or nearly so above, glaucescent and spar- 

 ingly pubescent beneath, broadly retuse or nearly truncate at the apex ; scape glabrous ; 

 cymes 3-6-flowered ; pedicels 1-2 cm. long, glabrous ; sepals lanceolate to linear-lanceolate, 

 about 6 mm. long, bearded at the apex, each with two elongate apical tubercles which are 

 commonly lobed at the base ; petals light-purple, 17-23 mm. long, decidedly oblique ; 

 shorter filaments glabrous ; longer filaments pubescent, prominently appendaged on the 

 back; styles pubescent ; capsules not seen. 



Tvpe collected near Trinidad, Hidalgo, Mexico, C. G. Pringle 8S92. 

 Distribution : Hidalgo. 



37. Ionoxalis madrensis Rose, sp. nov. 



Plants 15-30 cm. tall, the bulb-scales 3-ribbed; leaves about one half as tall as the 

 scape, the petioles glabrous; leaflets 3, the blades obreniform, 1-1.5 cm. long, glabrous, 

 bright-green above, paler beneath, rather deeply notched; scapes glabrous ; cymes 5-9- 

 flowered; pedicels 1.5-3 cm. long; sepals linear-lanceolate, 3.5^1 mm. long, glabrous, each 

 with 2 short apical tubercles which are confluent at the apex and more or less lobed at the 

 base; petals light-purple, 13-16 mm. long; shorter filaments glabrous; longer filaments 



