ZYGOPHYLLACE^E. (BEAX-CAPER FAMILY.) 63 



2. L. Boottii, Planclion. Leaves linear, acute ; flowers scattered in cymose 

 racemes ; sepals 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 l-2high. Flowers larger 

 than in Xo. 1, sulphur-yellow. 



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

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

 Carolina, Walter. ( *} 



ORDER 30. OXALIDACEJE. (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-lobed ; the cells loculicidally dehiscent on the back, 1 -few-seeded. 

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



1. O. Violacea, L. (PURPLE WOOD-SORREL.) Stcmless ; root tuber- 

 ous ; scapes umbellately 4 - 6-flowcred ; 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-SORRKL.) 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. Stricta, L. (YELLOW WOOD-SORREL.) Stems branching, leafy; 

 peduncles axillary, 2 - G-flowcred, longer than the leaves ; flowers yellow ; cap- 

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

 cember. and ty O. recurva and 0. furcata, 11., and O. Lyoni, Ph., are 

 forms of this. 



ORDER 31. ZYGOPHYJ.LACEA:. (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. 



