ZYGOPIIYLLA-CE^. (bEAN-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°-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, OXALIDACEiE. (AVood-Sorrel Famiey.) 



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

 hypogynous decandixjus 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 tlie axis 

 of flesliy albumen. Cotyledons flat. 



1. OXALIS, L. WOOD-SORRKL. 



Capsule .5-lobcd ; the cells loculicidally dehiscent on the back, 1 - fow-sceded. 

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



1. O. violacea, L. {Purple Wooo-Sorrel.) Stemless ; root tuber- 

 ous ; scapes unibellatcly 4 - 6-flowerc(l ; flowers pur))le, nodding. — Ilich 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. — ^lountains of North 

 Carolina and nortliward. June. — Scape and petioles liairy, 2' - .5' high. 



3. O. stricta, L (Yellow^ Wood-Sorrel.) Stems branching, leafy : 

 peduncles axillary, 2- G-flowered, longer than the leaves; flowers yellow; ca]i- 

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

 cember. ® and y. — O. recurva and 0. furcata, Ell., and 0. Lyoni, Pft., are 

 forms of this. 



Order 31. ZYGOPHYI.LACE/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. 



