30 NORTH AMERICAN FLORA [VOLUME 25 



Longer and shorter filaments pubescent; blades of 

 the leaflets deeply notched. 41. /. amplifolia. 



Lobes of the leaflets directed forward. 42. /. Galeottii. 



Sepals mucronate ; blades of the leaflets scarcely lobed. 43. T. mucronala. 

 Sepals with 4 irregular apical tubercles which are sometimes parti- 

 ally confluent. 

 Blades of the leaflets lunate. 44. I. quadriglandula. 



Blades of the leaflets obcordate, obreniform or obdeltoid. 

 Lobes of the leaflets rounded. 



Petals about twice as long as the sepals. 45. /. lali/olia. 



Petals several times longer than the sepals. 



Pedicels and sepals glabrous. 46. /. irinervia. 



Pedicels and sepals pubescent. 47. I.nudiflora. 



Lobes of the leaflets angulate. 48. /. angulata. 



Filaments unappendaged. 

 Inflorescence simple. 



Tubercles of the sepals distinct. 

 Corolla white. 



Cymes 1-3-flowered ; shorter and longer filaments pubescent. 49. /. alpina. 

 Cymes several-flowered ; shorter filaments glabrous. 50. /. itnmaculala. 



Corolla violet, lilac or purple. 



Filaments glabrous. 51. I. macrocarpa. 



Filaments, at least the longer ones, pubescent. 



Blades of the leaflets broadly obcordate, obreniform, 

 obdeltoid, or cuneate. 

 Styles pubescent ; blades of the leaflets not of an 

 obdeltoid type. 

 Cyme-branches glabrous. 



Blades of the leaflets obreniform or orbieular- 

 obovate . 

 Shorter and longer filaments pubescent. 



Cymes 1-2-flowered. 52. /. Sealonii, 



Cymes several- to many-flowered. 



Pedicels over 2.5 cm. long at maturity ; 



blades of the leaflets obreniform. 53. /. monticola. 



Pedicels less than 2.5 cm. long at matu- 

 rity ; blades of the leaflets orbicular- 



obovate. 54. I. Jacquiniana. 



Shorter filaments glabrous, the longer ones 

 pubescent. 55. /. Pringlei. 



Blades of the leaflets cuneate. 56. /. compacia. 



Cyme branches pubescent. 57. I. gregaria. 



Styles glabrous ; blades of the leaflets of an obdeltoid 

 type. 58. /. intermedia. 



Blades of the leaflets lunate or crescentic. 



Shorter filaments glabrous ; pedicels and calyx gla- 

 brous. 

 Blades of the leaflets crescentic, the lobes linear 



to linear-lanceolate. 59. /. atlenuaia. 



Blades of the leaflets lunate, the lobes ovate. 60. /. dimidiata. 



Shorter and longer filaments pubescent ; pedicels and 

 calyx viscid-pubescent. 61. /. primavera. 



Tubercles of the sepals confluent, at least at the tip. 



Capsules globose-ovoid ; blades of the leaflets obreniform. 



Sepal-tubercles short, mostly irregularly broken up at the 



base. 62. /. violacea. 



Sepal-tubercles elongate, mostly 2-lobed at the base. 63. /. Grahamiana, 



Capsules broadly oblong ; blades of the leaflets crescentic or 

 lunate, sometimes broadly so. 64. /. Drummondii, 



Inflorescence compound. 65. /. Martiana . 



1. Ionoxalis Conzattiana Rose, Contr. U. S. Nat. Herb. 10: 110. 1906. 

 Plants 20-35 cm. tall, the bulb-scales several-ribbed; leaves mainly much shorter than 

 the scape, the petioles sparingly pubescent with crisped hairs; leaflets 9, the blades 1.5-2 

 cm. long, oblong to oblong-oblanceolate, bright-green above, paler beneath, each bearing sev- 

 eral marginal tubercles near the apex, with scattered hairs on the upper surface, on the mar- 

 gins, and on the veins beneath ; scape glabrous or nearly so ; cymes 15-25-flowered ; pedicels 

 1-1.5 cm. long, often purple-tinged, glabrous; sepals oblong, 4.5-5.5 mm. long, glabrous, 

 mostly purple-margined, each bearing usually 4 elongate more or less irregular apical 

 tubercles; petals violet, 14-17 mm. long; shorter filaments glabrous, longer filaments 

 pubescent above, each with a prominent appendage on the back below the middle. 



Type locality : Mount Alban, near the City of Oaxaca, Mexico. 

 Distribution : Oaxaca, Mexico. 



