ZYGOPIIYLLACE^E. (BEAN-CAPER FAMILY.) 63 



2. L. Boottii, Planchon. 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. Diy soil, 

 North Carolina and northward. July. Stems l-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 stem ; stem branched, striate." South 

 Carolina, Walter. (*) 



ORDER 30. OXALIDACE^S. (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 obcordate. 



1. O. violacea, L. (PURPLE WOOD-SORREL.) Stemless ; 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. Acetocella, 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 f -5' high. 



3. O. Stricta, 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 ty O. recurva and O. furcata, Eli, and 0. Lyoni, Ph., are 

 forms of this. 



ORDER 31. ZYGOPHYLLACE^K. (BEAX-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 - 1 2-celled, with the styles united. Capsule 

 composed of 2 -1 2 indehiscent carpels, which separate from each other 

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

 flat. Radicle superior. 



