306 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



glabrous; sepals lanceolate to oblong-lanceolate, 4 to 5 mm. long, glabrous, each bear- 

 ing four long and narrow apical tubercles; petals violet, 11 to 14 mm. long; shorter fila- 

 ments with few spreading hairs; longer filaments pubescent with shorter hairs, each 

 one appendaged on tbe back below the middle. 



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

 Pringle (no. 8821). 



Ionoxalis rosei Small, N. Amer. Flora 25 1 : 32. 1907. 



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

 them, often nearly as tall as the scape, the petioles nearly glabrous, or with scattered 

 hairs; leaflets 4 or 5, the blades 2 to 4 cm. long, obdeltoid, slightly retuse at the apex, 

 pubescent at the base, bright green and almost glabrous above, paler or sparingly 

 pubescent beneath; scape commonly bearing a few hairs near the inflorescence; 

 cymes 6 to 15-flowered; pedicels 1 to 2.5 cm. long, minutely viscid-pubescent; sepals 

 lanceolate to linear-lanceolate, 4.5 to 5.5 mm. long, minutely pubescent, each with two 

 short apical tubercles; petals violet, 15 to 20 mm. long, shorter filaments glabrous; 

 longer filaments copiously pubescent, each with a prominent appendage near the 

 base. 



Type collected near Tlalnepantla, Mexico, July 6, 1905, by J. N. Rose, J. H. Painter, 

 and J. S. Pose (no. 8401). 



Ionoxalis tenuissima Pose, N. Amer. Flora 2ft 1 : 35. 1907. 



Plants 9 to 18 cm. tall, the bulb scales 3-ribbed; leaves about as tall as the scape, 

 the petioles finely pubescent, or glabrate in age; leaflets mostly 8 to 11, the blades 

 narrowly linear, 2.5 to 6 cm. long, obtuse, or slightly notched at the apex, glabrous, 

 light green above, glaucous beneath; scapes glabrous; cymes 2 to 5-flowered; pedicels 

 1 to 2 cm. long, glabrous; sepals lanceolate, 3 to 4 mm. long, glabrous except the cilio- 

 late margin, acute, each bearing two rather long apical tubercles; petals violet, 10 to 12 

 mm. long; shorter filaments glabrous; longer filaments pubescent, unappendaged. 



Type collected between Dolores and Santa Gertrudis, Tepic, Mexico, August 1, 

 1897, by J. N. Rose (no. 3423). 

 Ionoxalis trientalis Small, N. Amer. Flora 2ft 1 : 35. 1907. 



Plants 10 to 15 cm. tall, the bulb scales 3-ribbed; leaves as tall as the scape or 

 nearly so, the petioles glabrous; leaflets 7 to 10, the blades elliptic or elliptic-lanceolate, 

 3 to 5.5 cm. long, rather obtuse at the apex, narrowed at the base, bright green above, 

 pale green beneath, glabrous; scapes glabrous; cymes 5 to 8-flowered; pedicels 1.5 to 

 3 cm. long, glabrous; sepals oblong or nearly so, 3 to 4 mm. long, bearded at the apex, 

 each bearing 4 uneven, rather elongate, apical tubercles; petals lilac, 13 to 17 mm. 

 long; shorter and longer filaments pubescent, the latter unappendaged; styles mostly 

 glabrous; capsules columnar, about 1 mm. long, glabrous and glaucous. 



Type collected near Colomas, Sinaloa, Mexico, July 19, 1897, by J. N. Rose (no. 

 3217). 



Ionoxalis trineuris Small, N. Amer. Flora 25 1 : 34. 1907. 



Plants 5 to 20 cm. tall, the bulb scales 3-ribbed; leaves fully one-half as tall as the 

 .scape or equaling it, the petals glabrous; leaflets 4 to 8, the blades 1 to 3 cm. long, 

 cuneate, usually broadly so, notched to above the middle, the lobes ovate or oblong, 

 deep green above, paler beneath, glabrous except sometimes for a few marginal hairs 

 near the apex; scape glabrous; cymes 2 to 7-flowered; pedicels 1 to 2 cm. long, 

 glabrous; sepals oblong to lanceolate, 3.5 to 5.5 mm. long, glabrous, each bearing 

 2 apical tubercles; petals violet, 12 to 16 mm. long; shorter filaments glabrous; longer 

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



Type collected on "hacienda de la Encarnacion," State of Mexico, Mexico, July 7, 

 1905, by J. N. Rose, J. H. Painter, and J. S. Rose (no. 8472). 

 Ionoxalis vallicola Rose, N. Amer. Flora 25 1 : 39. 1907. 



Plants 1 to 3 cm. tall, the bulb scales many-ribbed; leaves as tall as the scape or 

 nearly so, the petioles sparingly pubescent; leaflets 3, the blades obreniform, 2 to 



