256 J« N. Rose. 



This species was distributed as 0. decaphytta H. B. K., from which it 

 proves to be very distinct. 



6. lonoxalis conzattiana Rose, 1. c, p. 110. 



Bulbs solitary, rather large, surrounded by a bundle of fibers; bulb- 

 scales orbicular, with many nerves (15 or more); leaflets 4 to 6, orbi- 

 cular to shortly oblong, rounded at apex, 2 to 3 cm long, somewhat 

 hairy even in age, glaucous beneath, the margin and tip with scattered 

 brown glands; peduncles often much longer than the leaves and 

 appearing with them, 20 to 30 cm long; flowers numerous, on slender 

 pedicels; sepals lanceolate. 5 to 8 mm long, obtusish, thin, purplish- 

 margined, bearing a brown gland at tip; flowers deep purple; petals 12 

 to 20 mm long; filaments a little pubescent; styles hairy. 



Type U. S. National Herbarium no. 346561, collected by J. N. Rose 

 and Walter Hough on Mount Alban near city of Oaxaca, June 16 

 to 21, 1899 (no. 4586). 



I also refer here, although it has much larger flowers, a specimen 

 collected by E. W. Nelson on the west slope of Mount Zempoaltepec, 

 Oaxaca, July, 1894 (no. 550). 



This is one of the largest-flowered species of the genus which I 

 have seen in Mexico and would doubtless be worthy of introduction into 

 cultivation. 



7. lonoxalis cuernavacana Rose, 1. c, p. 111. 



Bulbs large, deep-seated, clothed without with stout fibers; bulb- 

 scales acute, broad, with numerous strong nerves; leaflets 4, broadly 

 cuneate. rounded or broadly notched at apex, in age glabrate, pale 

 beneath, 3 to 6 cm long, 2 to 4 cm broad; peduncles stout, appearing 

 before the leaves; flowers mostly 6 to 12, sometimes reduced to one; 

 sepals oblong, obtuse, gland-tipped; flowers reddish or purplish; petals 

 12 to 15 mm long; stamens of two lengths, the longer toothed on one 

 side, glandular-pubescent, the others hairy. 



Type U. S. National Herbarium no. 346366, collected by J. N. Rose 

 in deep woods in the canyon above Cuernavaca, Morelos, May, 1899 

 (no. 4401); also near the same locality by C. G. Pringle, June, 1896 

 (no. 6344). Bulbs were sent home by the writer which flowered in the 

 Botanical Garden in September, 1899. 



8. lonoxalis decaphylla (H. B. K.) Rose, 1. c, p. ill. 



OxaLis decaphyUa H. B. K. Nov. Gen. & Sp., V, 538, pi. 468; 1821. 



Humboldt's illustration of this species shows a plant with 10 leaflets 

 somewhat cuneate at base and strongly notched at apex. The material 

 which has been referred to this species comes from widely separated 

 stations and shows a considerable variation in the size and shape of the 

 leaflets. A good part of it seems to belong elsewhere. Material which 

 I collected in the Valley of Mexico is very nearly typical, and, if really 

 so, it will exclude all the northern material. 



9. lonoxalis drummondii (A. Gray) Rose, 1. c, p. 111. 

 Oxalis drummondii A. Gray, PI. Wright, II, 251; 1853. 



