54 NORTH AMERICAN FLORA [Volume 25 



14. Xanthoxalis Priceae Small, Fl. SE. U. S. 669. 1903. 



i > i all i I'n, eae Small, Bull. Torrey Club 25 : 612. 1898. 



Stems erect or decumbent, 1-2 dm. tall, villous but sometimes sparingly so, arising 

 from horizontal rootstocks ; leaflets deep-green, the blades 8-14 mm. broad,' glabrous at 

 least at maturity, except the sometimes ciliate margins ; peduncles about as long as the 

 petioles or somewhat longer; pedicels villous, refracted in fruit; sepals 6-7 mm. long at 

 maturity; petals golden-yellow, 15-19 mm. long; longer filaments pubescent; capsules col- 

 umnar, stout, 14-19 mm. long, minutely but finely pubescent, abruptly narrowed at the 

 apex. 



Tvpe LOCALITY : Middle Kentucky. 



Distribution : Kentucky to Alabama. 



15. Xanthoxalis albicans (H.B.K.) Small. 



< 1 1 alii albicans H.B.K. Nov. Gen. & Sp. 5 : 244. 1822. 

 lOxalis verlicillala Moc. & Sesse ; DC. Prodr. 1 : 691. 1S24. 



< > i alii Wrightii A. Grav, PI. Wright. 1 : 27. 1S52. • 

 Xanthoxalis Wrightii Abrams, Bull. Torrey Club 34: 264. 1907. 



Stems erect or partially decumbent, 1-4 dm. tall, short-hirsute, usually densely so at 

 least on the lower part, the tuberous roots fusiform, often slenderly so ; leaflets bright- or 

 pale-green, the blades 4-15 mm. broad, thick, with scattered hairs on both surfaces; 

 peduncles as long as the petioles or longer ; pedicels strigillose, refracted in fruit ; sepals 

 4-5 mm. long at maturity, often purple-tinged or purple; petals light-yellow or purplish, 

 6-10 mm. long; longer filaments glabrous; capsules columnar, rather stout, 16-20 mm. 

 long, minutely close-pubescent, gradually narrowed at the apex. 



Type locality : Between Texas and New Mexico. 



Distribution : Western Texas to Arizona and Mexico. 



16. Xanthoxalis calif ornica Abrams, Bull. Torrey 

 Club 34 : 264. 1907. 

 Stems erect or decumbent, 1-4 dm. tall, with scattered, appressed or lax hairs, or 

 nearly glabrous in age, tufted on long-fusiform woody roots; leaflets bright-green, the 

 blades 7-16 mm. broad, with scattered hairs on both surfaces and ciliate ; peduncles much 

 longer than the petioles ; pedicels strigillose, relatively long and often conspicuously elon- 

 gate and refracted in fruit ; sepals 5-6.5 mm. long at maturity, usually purple-margined 

 and purple-tipped; petals orange-yellow or purple-tinged, 9-13 mm. long; longer filaments 

 glabrous ; capsules columnar, very stout, 11-16 mm. long, minutely pubescent, rather 

 abruptly narrowed at the apex. 



Type locality : Onofre Mountains, San Diego County, California. 

 Distribution : Southern California, Lower California, and Santa Catalina Island. 



17. Xanthoxalis pilosa (Nutt.) Small. 



Oxalispilosa Nutt.; T. & G. Fl. N. Am. 1 : 212. 1838. 



Stems erect, decumbent or reclining, 1-4 dm. tall, densely pilose, with the hairs often 

 somewhat retrorse, tufted on a slender woody fusiform root; leaflets bright-green, the 

 blades 7-17 mm. broad, closely or sparingly pubescent on both surfaces and ciliate ; 

 peduncles somewhat longer than the petioles or occasionally shorter ; pedicels hirsute, 

 refracted in fruit; sepals 4.5-6 mm. long at maturity; petals deep-yellow, 8-12 mm. long ; 

 longer filaments glabrous ; capsules columnar, stoutish, 13-18 mm. long, finely hirsute, 

 rather abruptly narrowed at the apex. 



Type locality : Santa Barbara, California. 

 Distribution : California, Arizona, and Sonora. 



18. Xanthoxalis hirsuticaulis Small, Fl. SE. U. S. 669. 1903. 



Oxalis hirsuticaulis Small, Bull. Torrey Club 25 : 611. 1898. 



Stems erect, 1-2 dm. tall, copiously villous-hirsute, arising from long horizontal root- 

 stocks ; leaflets light-green, the blades 8-17 mm. broad, with scattered hairs on both sur- 



