OXALTDACEJE. ( WOOD-SORREL FAMILY.) C5 



5. L. rigidum, Pursli. Stem simple or sparingly branched (6' -12' 

 liigh) ; leaves narrow-linear; flowers few, racemo.se, yellow; sepals acute, 

 glandular on the margins ; styles united to the top ; capsule globose. 

 Miami, South Florida (Gurber). 



ORDER 28. OXALIDACE^E. (WooD-SoRREL FAMILY.) 



Chiefly herbs, with sour juice, alternate compound leaves, and reg- 

 ular hypogynous decandrous flowers. Sepals 5, imbricated in the 

 bud, persistent. Petals 5, convolute in the bud, deciduous. Stamens 

 more or less united. Styles 5, distinct. Ovary 5-celled. Capsule 5- 

 celled, the cells few-seeded. Seeds anatropous, pendulous. Embryo 

 straight in the axis of fleshy albumen. Cotyledons flat. 



1. OXALIS, L. WOOD-SORREL. 



Capsule 5-lobetl ; the cells loculicidally dehiscent on the back, 1 - few- 

 seeded. Seed-coat loose and separating Leaves 3-foliolate Leaflets 

 obcordate. 



1. O. violacea, L. (PURPLE WOOD-SORREL.) Stemless ; root tuber- 

 ous ; scapes umbellately 4 - 6-flowered ; flowers purple, nodding. Rich 

 woods, West Florida to North Carolina, aud westward. May - June. 

 Scapes and petioles 5' - 9' high. 



2. O. AcetO89lla, L. (WHITE WOOD-SORREL.) Stemless ; root creep- 

 ing; scape 1 -flowered ; flower white, veined with red. Mountains of North 

 Carolina, and northward. June. Scape and petioles hairy, 2' - 5' high. 



3. O. grandis, Small. Annual; stem simple, smooth or villous, 1- 2 

 high; leaves exstipulate, the large (l'-2' wide) leaflets margined with 

 brownish purple; flowers yellow, umbellate or cymose, 5" -7" long, tri 

 morphons. Alabama [Molir], and northward. May. 



4. O. corniculata, L. (YELLOW WOOD-SORREL.) Perennial, appressed- 

 hairy ; stems creeping; leaves small, minutely stipulate; peduncles 1-2- 

 flowered; flowers yellow, 2" -4" long; styles as long as the longer stamens; 

 capsule many-seeded. Cultivated ground. Introduced. 



Var. macrantha, T re-lease. Perennial, villous ; peduncles 3 - 7-flowered, 

 longer than the leaves; flowers 3" - 6" long, trimorphous. Dry sandy soil 

 near the coast, Georgia, and westward. April -May. 



Var. stricta, Sav. Annual, smoothish, stem erect, 6'- 12' high, at 

 length much branched ; peduncles 3-9-flowered, twice as long as the leaves ; 

 stipules none ; flowers 2" - 3" long ; styles as long as the stamens , capsule 

 short, few-seeded Waste and cultivated ground. April -May. 



5. O. recurva, Ell. Pubescent, mostly simple, 4'- 8' high; leaves 

 small, shorter than the 2 -6-flowered peduncles, petals obovate, 2-3 times as 

 Jong as the calyx ; styles shorter than the stamens, recurved. Cultivated 

 and waste ground, North and South Carolina. April -May. 



5 



