304 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Ionoxalia calcaria Small, N. Airier. Flora 25 1 : 37. 1907. 



Plants 5 to 15 cm. tall, erect, the bulb scales several-ribbed; leaves as tall as the 

 scape or nearly so, the petiole finely pubescent; leaflets 3, the blades lunate, 10 to 

 23 mm. wide, dark green and glabrous above, pale and sparingly pubescent beneath, 

 the lobes ovate to lanceolate; scapes very sparingly pubescent; cymes 5 to I4-flowered; 

 pedicels 0.5 to 1.5 cm. long, glabrous or nearly so; sepals lanceolate to linear-lanceolate, 

 2.5 to 3.5 mm. long, glabrous, each bearing 2 rather long apical tubercles; petals white, 

 6 to 9 mm. long; shorter filaments glabrous; longer filaments pubescent, each with an 

 appendage on the back near the base. 



Type collected on Mount Alban, near the city of Oaxaca, Oaxaca, Mexico, June 16 

 to 21, 1899, by J. N. Rose and Walter Hough (no. 4589). 



Ionoxalis divaricata Small, N. Amer. Flora 25 1 : 33. 1907. 



Plants 10 to 30 cm. tall, the bulb scales many-ribbed; leaves fully half as tall 

 as the scape, or equaling it, the petioles glabrous, at least above the base; leaflets 4, 

 the blades 2 to 5 cm. long, open V-shaped with the 2 oblong-ovate lobes rather spreading, 

 bright green above, paler beneath, with scattered hairs on both surface-; scape gla- 

 brous; cymes 3 to 11-flowered; pedicels 1.5 to 3 cm. long, glabrous; sepals lanceolate 

 or oblong- lanceolate, 4.5 to 5 mm. long, glabrous, each bearing 2 short apical tubercles; 

 petals violet, 12 to 16 mm. long; shorter filaments glabrous; longer filaments pubescent 

 above, each with an appendage below the middle. 



Type collected near Tlalpam, Valley of Mexico, July 15, 1901, by J. N. Rose and 

 Robert Hay (no. 5494). 



Ionoxalis goldmanii Rose, sp. nov. 



Bulbs deep-seated, the brown scales 7-nerved; petioles about 20 cm. long, some- 

 what pubescent; leaflets 5 or 6, broadly obovate, rounded at apex, 4 to 6 cm. long, 

 3 to 4 cm. broad, somewhat hairy, especially toward the base; peduncles much longer 

 than the leaves, more or less pubescent; cymes 10 to 15-flowered, pedicels 15 mm. long, 

 glandular-pubescent; sepals lanceolate; lower stamens pubescent, appendaged on 

 the back; style pubescent. 



Type U. S. National Herbarium no. 470828, collected by E. A. Goldman at 

 Jiquipelas, Chiapas, Mexico, May 31, 1909 (no. 1033). 



Perhaps nearest /. rosei, but with different leaflets, etc. 



Ionoxalis immaculata Small, N. Amer. Flora 25 1 : 41. 1907. 



Plants 8 to 20 cm. tall, the bulb scales 3-ribbed; leaves over half as tall as the scape, 

 the petioles glabrous; leaflets 3, the blades obdeltoid in outline, 1 to 1.5 cm. wide, 

 glabrous, bright green above, paler beneath, the lobes broadly ovate; scapes glabrous; 

 cymes 4 or 5-flowered; pedicels 1.5 to 3 cm. long, glabrous; sepals linear to linear- 

 oblong, 4 to 4. 5 mm. long, glabrous, each bearing two very narrow apical tubercles; petals 

 white, 11 to 13 mm. long; shorter filaments glabrous; longer filaments pubescent, 

 unappendaged ; styles pubescent; capsules columnar, about 10 mm. long, glabrous. 



Type collected on Sierra de Pachuca, Hidalgo, Mexico, July 21 and 22, 1901, by J. 

 N. Rose and Robert Hay (no. 5545). 



Ionoxalis lanceolata Small, N. Amer. Flora 25': 35. 1907. 



Plants 10 to 20 cm. tall, the bulb scales 3-ribbed; leaves as tall as the scape or nearly 

 so, the petioles finely pubescent or partially glabrous in age; leaflets mostly 5 to 7, the 

 blades 2 to 9 cm. long, typically lanceolate, sometimes narrowly so, those of the 

 earlier leaves inclined to be broadened upward or rarely obovate, the narrower ones 

 acute or acutish, bright green above, paler beneath or glaucescent, usually sparingly 

 pubescent, especially on the lower surface and on the margins; scapes glabrous or 

 nearly so; cymes 1 to 4-flowered; pedicels 1 to 3 cm. long, glabrous; sepals lanceolate 

 or linear-lanceolate, 5 to 6 mm. long, glabrous except the ciliolate margins, acute, each 

 bearing two rather elongate apical tubercles; petals lilac, 14 to 18 mm. long; shorter fila- 



