ZYGOPHYLLACE.E. (BEAN-CAPER FAMILY.) C3 



2. L. Boottii, Planchon. Leaves linear, acute ; flowers scattered in cymoso 

 racemes ; Bepals ovate-lanceolate, 3-nerved, fringed with glandular hairs ; styles 

 united below the middle; capsule imperfectly 10-celled, globose. — Dry soil, 

 North Carolina and northward. July. — Stems 1°- 2° high. Flowers larger 

 than in No. 1, sulphur-yellow. 



3. L. Striatum, Walt. " Flowers terminal ; leaves subovate, alternate, 

 the nerve and margins decurrent on the 6tcm ; stem branched, striate." — South 

 Carolina, 1 J 'alter. ( * ) 



Order 30. OXALIDACE^E. (Wood-Sorrel Family.) 



Chiefly herbs, with sour juice, alternate compound leaves, and regular 

 hypogynous decandrous flowers. — Sepals 5, imbricated in the bud, per- 

 sistent. 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-lobcd ; the cells loculicidally dehiscent on the back, 1 -few-seeded. 

 Seed-coat loose and separating. — Leaves 3-foliolate. Leaflets obeordate. 



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, and westward. May and June. — Scapes and 

 petioles 5' - 9' high. 



2. O. Acetosella, 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. striata, L. (Yellow Wood-Sorrel.) Stems branching, leafy; 

 peduncles axillary, 2 -6-flowered, longer than the leaves ; flowers yellow ; cap- 

 sule elongated, erect. — Dry soil, common and varying greatly. April - De- 

 cember. ® and \ — O. recurva and O. furcata, Ell., and O. Lyoni, Ph., are 

 forms of this. 



Order 31. ZYGOPHYLLACE.E. (Bean-Caper Family.) 



Herbs, shrubs, or trees, with hard wood, opposite pinnate dotless stipu- 

 late leaves, and regular hypogynous mostly decandrous flowers. — Sepals 

 and petals 5-6, imbricated or convolute in the bud. Stamens distinct, 

 often appendaged. Ovary 2 -12-celled, with the styles united. Capsule 

 composed of 2-12 indehiscent carpels, which separate from each other 

 and often from a central axis at maturity. Embryo straight. Cotyledons 

 flat. Radicle superior. 



