48 NORTH AMERICAN FLORA [Volume 25 



one; primary peduncles mostly longer than the petioles; pedicels often closely pubescent, 

 3-5 mm. long; sepals 5-6 mm. long, the outer ones lanceolate or oblong-lanceolate, often 

 sparingly ciliate and sometimes with few scattered hairs on the back ; longer filaments 

 appendaged below the middle, pubescent; styles pubescent; mature capsules not seen. 



Type locality : Tropical America. 



Distribution : West Indies and northern South America. 



Illustrations: Descourt. Fl. Med. Ant. pi. J2 (poor) ; Bot. Reg. 10: pi. 810. 



6. Lotoxalis occidentalis Rose, Contr. U. S. Nat. Herb. 10 : 115. 1906. 



Lotoxalis yucatanensis Rose, Contr. V. S. Nat. Herb. 10 : 116. 1906. 



Plants 9-30 cm. tall, with diffusely spreading and irregularly branched stems, the 

 younger branches at least pubescent with lax or ascending hairs ; leaves borne on the 

 younger branches, the petioles finely and ultimately thinly pubescent ; blades of the leaflets 

 ovate to oblong-ovate or sometimes suborbicular to oblong, mostly 1-2.5 cm. long, some- 

 times sparingly ciliate, glabrous or sparsely pubescent beneath with scattered hairs, that 

 of the terminal leaflet truncate or emarginate at the apex, those of the lateral ones obliquely 

 notched at the apex ; primary peduncles as long as the petioles or somewhat longer ; 

 pedicels closely pubescent, 2-4 mm. long ; sepals 4-5 mm. long, acute or slightl}- acumi- 

 nate, the outer ones lanceolate, glabrous or nearly so ; longer filaments appendaged below 

 the middle, decidedly pubescent ; capsules oblong, 6-8 mm. long, glabrous ; seeds about 

 1.5 mm. long. 



Type locality: Between Rosario and Concepcion, Sinaloa, Mexico. 



Distribution : Southern Mexico and Central America. 



7. Lotoxalis angustifolia (H.B.K.) Rose, Contr. U. S. Nat. 

 Herb. 10 : 115. 1906. 

 Oralis angustifolia H.B.K. Nov. Gen. & Sp. 5 : 249. 1822. 



Plants about 20 cm. tall, the. stem irregularly branched, the young branches pubescent; 

 leaves few, the petioles nearly glabrous; blades of the leaflets linear or in the case of lower 

 leaves oblong-linear, obtuse, glabrous, those of the lateral leaflets smaller than those of the 

 terminal one ; primary peduncles about twice as long as the petioles ; pedicels glabrous, 

 about 3 mm. long; sepals oblong-lanceolate, glabrous; petals yellow, about twice as long as 

 the sepals; styles pubescent; capsules not seen. 1 



Type locality : Western Mexico. 



Distribution : Known only from the type locality. 



8. Lotoxalis glabrata (Baker) Rose, Contr. U. S. Nat. 

 Herb. 10 : 115. 1906. 

 Oxalis Neaei glabrata Baker, in Saund. Ref. Bot. sub pi. 2V2. 1871. 



Plants 30-60 cm. tall, the stem and straight branches puberulent ; leaves often approx- 

 imate near the tips of the branches, the petioles puberulent like the branches ; blades of 

 the leaflets ovate, sometimes narrowly so, mostly 2-5 cm. long, dark-green and glabrous 

 above, purple and thinly pubescent beneath, acuminate, those of the lateral leaflets slightly 

 smaller than that of the terminal one ; primary peduncles often shorter than the petioles ;, 

 pedicels very short, commonly 1-2 mm. long; sepals 3-4 mm. long, the outer ones lance- 

 olate, slightly pubescent ; petals whitish, about twice as long as the sepals ; styles pubes- 

 cent ; capsules not seen. 1 



Type locality : Mexico. 



Distribution : Known only from the type locality. 



Illustration : Saund. Ref. Bot. pi. 292. 



9. Lotoxalis sepium (St. Hil.) Small. 



Oxalis sepium St. Hil. Fl. Bras. Mer. 1 : 111. 1825. 



Lotoxalis dnhotoma Rose, Contr. U. S. Nat. Herb. 10 : 115. 1906. 



Plants 20-65 cm. tall, the stem and branches pubescent with scattered hairs at least 

 when young ; leaves usually remote but mostly on the upper part of the stem and branches, 



: No specimens were seen ; this description is adapted from the original. 



