114 CONTRIBUTIONS FROM THE NATIONAL HERBARIL^M. 



lonoxalis occidentalis Roae, Hp, nav. 



Bulbs solitary, deep-seated; bulb scaU's acuminatCj strongly many (about 20) 

 nerved, some of tbe nerves anastomosing; h^aflets 4 to 6, i-ullu-r thick, strongly 

 notched at apex^ cuneate at base, glabrous; (peduncles elongated^ much longer ilian 

 the leaves and appearhig with them; flowers 4 to 7, on slender pedicels 'I to 3 cm. 

 long; sepals broadly oblong, C to 7 mm. long, rounded or even truncate at the apex, 

 thin with liroad purple niargiuSj glabrous, with o or 4 glands near tip; petals deej) 

 purple above, pale below, 2 cm. long; filaments somewhat hairy; styles pubescent. 



Type XT. S. National Herbarium no, 301992, collected by T. N. Rose on the road 

 between Bolanos and Guadalajara, but in the State of Zacatecas, September 20, 1SW7 



(no. 3035). 

 This is a very beautiful species, worthy of cultivation. 



lonoxalis primavera Rose, sp. nov. 



Bulbs of medium size; scales oblong, very fibrous, the nerves 12 or more; leaflets 

 3j triangular in outline more or less strongly lobed at apex, the lobes generally brr>ad 

 and rounded at apex; peduncles 20 to 30 cm. long, neariy twice as long as the leaves; 

 pedicels and calyx glandular-pubescent (^ven in age; flowers numerous, purplish; 

 sepals lanceolate, obtusish, glandular at tip, 5 to 6 nun. long; petals T2 to Ifi mm. 

 long; pubescent within; filaments only slightly i>ubescent. 



Yery common in the lowlands of Tepic and Sinaloa, where it was collected by 

 J. N. Rose, July 2, 1897 (no. 1508). This specimen, the type, from Acaponeta, Tcj)ec, 

 is no. 300348 of the U, S. National Herbarium. 



This plant begins to flower a few days after tbe fir^t rains and is one of the very 

 earliest of the herbaceous plants to aj^pear on the dry plains of western Mexico. 

 Later in tlie season it is so abundant that it becomes a troublesome weed in corn- 

 fields. 



This species has been in cultivation since 1897 in the Washington Botanical Gar- 

 den, where it has flowered several times. 



lonoxalis pringlei Rose, sp. nov. 



BulliS solitary; leaves radial, several; petioles slender, ghibrous; leaflets broadly 

 cuneate, obcordate, glabrous, 10 to 20 mm. broad; peduncle 15 to 25 cm. long, much 

 longer than the leaves, glabrous, 2 to 8-flowered; involucral bracts small, slightly 

 pubescent, acute, gland-tipped; peduncles 12 to 35 mm. long, slender; sepals ovate, 

 acute, 4 nnn. long, glabrous, with scarious margins and gland-ti])ped; i)etals bine, 

 yellowish below, 10 mm. long; 5 filaments longer than the others; cai)sule linear, 

 elongated, 15 mm* long. 



Type U. S. National Herbarium no, 304003, collected by Dr. C. G. Pringle on 

 lava beds on the side of Sierra de Ajnsco, Distrito Federal, altitude 2,550 meters, 

 September 8, 189G (no. 048:^). 



lonoxalis schiedeana (Zucc. ) Rose. 



Oxalis sehiedeana Zucc. Abb. Math. Thys. Classe 2:852* 1834. 



lonoxalis stipitata Eose, sp. nov. 



Bulbs globular, small, covered wdtb thin coats, these with about 8 to 10 delicate 

 nerves, ciliate; young buds hairy; leaflets 8, becoming glabra te, 2-lobed; lobes 

 widely spreading, linear-oblong, obtuse; sepals oblong, 4 mm, long, obtuse, purj>lisl 

 at tip, 2-glandular; petals pale blue, 11 mm. long; stamens 10, united below, of two 

 lengths; free part of filaments broad below, the 5 longer filaments hairy, the 5 

 shorter glabrous; ovary stipitate; styles (in specimens seen) long, hairy; fruit ratlier 

 broad, one and one-half times longer than the sepals. 



Type U. S. National Herbarium no. 40241, collected by C* (i. Pringle, near Tialne- 

 pantla, Valley of Mexico, July 5, 1898 (no. GS94). 



lonoxalis stolonifera Eose, sp. nov. For description gee ]), 181. 



I 



