584 PLANT LIFE OF ALABAMA. 
Evurorr. 
Naturalized; widely diffused on the Pacilic coast from British Columbia to south- 
ern California. Rare in the Atlantic States. 
ALABAMA: Adventive with ballast. Mobile; June. Rare. Observed for several 
seasons maturing seeds well. Annual. 
Economic uses: Considered on the Pacific as one of the most valuable wild pas- 
ture plants. 
Type locality: ‘Hab. in Europae sterilibus cultis.” 
Herb. Geol. Surv. Herb. Mohr. 
OXALIDACEAE. Wood-sorrel Family. 
OXALIS L. Sp. Pl. 1:433. 1753.! 
About 200 species, chiefly of tropical America, South Africa. North America 17, 
Atlantic 8. 
Oxalis corniculata L. Sp. Pl. 1:435. 1753. CREEPING SORREL. 
Ell. Sk. 1:526. Gray, Man. ed. 6,105. Chap. Fl. ed. 3,65. Coulter, Contr. Nat. 
Herb. 2:52. Wats. Bot. Calif. 1:96. 
Europe, NORTHERN AFrica, AsIa, MEXICO, COSMOPOLITAN. p ; . 
Carolinian and Louisianian areas. Indigenous in the interior in Missouri, 
Arkansas, ‘lexas, and California, and from all appearances in the Gulf States. 
ALABAMA: Cultivated and waste places. Tuscaloosa County (£. A. Smith). Lee 
County, Auburn (Baker § Earle, 103), Mobile. Flowers yellow; March, May. 
Not rare. Easily recognized by the low prostrate habit of its growth. Perennial 
from a creeping rootstock. 
Type locality: ‘‘ Hab. in Italia, Sicilia.” 
Herb. Geol. Surv. Herb. Mohr. 
Oxalis stricta L. Sp. Pl. 1: 485. 1753. CoMMON YELLOW SORREL. 
Oxalis corniculata var stricta Sav. in Lam. Eneycl. 4: 683. 1797. 
Ell. Sk. 1:526. Gray, Man. eid. 6, 105, in part. Chap. FI. ed. 3, 65. Coulter, 
Contr. Nat. Herb. 2:52. Britt. & Br. Il. Fl. 2: 346. 
Stem mostly simple, erect or branched at the base from a slender perennial root- 
stock, 6 to 8 inches high; leaves smoothish or strigosely pubescent, # inch to 14 
inches wide; leaflets little wider than long, fleshy, smoothish, ciliate, broadly emar- 
ginate, the cellular structure prominent under ‘the lens; peduncles umbellate, 
longer than the leaves, 2 to 6 inches long, axillary from the clustered leaves; pedi- 
cels 4 to % inch long, almost horizontally, deflexed in fruit; pods columnar, 
abruptly pointed with the short styles, 4 to ~ inch long, seed somewhat acute at 
the base with strong interrupted transverse ridges. Flowers yellow, small. 
Alleghenian to Louisianian area. Canada; New England to Dakota, south to the 
Gulf of Mexico. 
ALABAMA: Over the State. In low damp ground, grassy banks, fields, and woods. 
Flowers May. Common. Annual or perennial. 
Type locality: ‘‘Hab. in Virginia.” 
Herb. Mohr. 
Oxalis recurva Ell. Sk.1:526, 1817. LARGi-FLOWERED Woop SoRREL, 
El. Sk.l.c. Chap. Fl. ed. 3,65. Britt. & Br. IN. Fl. 2: 347. 
A -‘rore slender plant than the above, perennial. Stems mostly several from the 
wiry stoloniferons rhizoma, rigid, scarcely over 6 inches in length; leaflets thin- 
ner, about ~ inch wide and scarcely as long, the cellular structure less prominent 
under the lens; peduncles slender, umbellate, longer than the leaves, hirsute with 
strigose adpressed hairs; pedicels 2 to 4 in the umbellate cluster, almost filiform, 
incurved and at length reflexed; pod acuminate, crowned with the long styles; 
seeds with uninterrupted transverse ridges.? : 
Carolinian and Lonisianianarea, Northwestern Virginia at sea level, southwestern 
Vir, ne at 2,000 feet; southeastern Kentucky, North Carolina, South Carolina at 
sea level. 
1J.K. Small, Two species of Oxalis, Bull. Torr. Club, vol. 21, pp.471 to 479. 1894. 
Same author, A neglected species of Oxalis and its relatives, op. cit., vol. 23, pp. 265 
to 269. 1896. 
*See J. K. Small, Bull. Torr. Club, 21: 471, t. 222. 
