DICOTYLEDONS. 135 



elliptical or ovate, acute, crest luimite; seeds obovate, sparsely hairy, 

 a little longer than the lobes of the caruncle. May-August. Moist 

 woods. 



o. r. ixcAKNATA L. TiNK ^I I LKWORT. Aunual ; stem simple 

 or rarely branched, erect, glaucous, 12-18 in. high; leaves few, 

 alternate, fleshy, linear, sometimes small and scale-like; spike ter- 

 minal, solitary, slender, densidy flowered; flowers pink; petals united 

 into a tube twice the length of the elliiitical wings, crest consi»icu- 

 ous; seeds oval, hairy, caruncle spongy. May- August. Dry soil in 

 open fields. 



4. P. GRANDiFLORA Walt. Siiowv ]\DlivWokt. Perennial or 

 biennial; stems erect or ascending, branched, G-12 in. high; leaves 

 alternate, elliptical, pubescent; flowers in long terminal and axil- 

 lary racemes, large, pink or purple, wings large, orbicular, pedicels 

 drooping; seeds oblong, hairy, caruncle snuiU. ]\Iay-September. 

 Dry, sandy soil. 



5. P. POLYGAMA AValt. Racemed ADlkwort. P>iennial; stems 

 erect, simple, numerous, smooth, very leafy; leaves elliptical or the 

 hnver si)atulate; flowers of two kinds, the showy and perfect puri)le 

 flowers in loose terminal racemes, and the subterranean inconspicu- 

 ous l)ut fertile flowers; seeds oblong or ovate, very hairy, twice the 

 length of the caruncle. April-June. AVet pine barrens. 



OS. EUPHORBIACEJE. SPllKiK FAMILY. 



Trees, shrubs or herbs, with an acrid, and usually milky 

 juice; leaves alternate, oi)posite or verticillate, petioled or 

 sessile, sti})ulate or exsti})ulate ; flowers various, often monoe- 

 cious, petaloid or enclosed in a petal-like involucre ; stamens 

 few or many ; styles usually 3, simple or much-divided : 

 ovary usually .'^-celled, suuu'times 2-celled, with 1^ ovules sus- 

 [x'uded in each cell, the carpels at length separating from 

 the central axis. 



I. RICINUS. 



Annual lici-bs, shrubs or trees; leaves altenuite, simple, 

 petioled, }»aliuately lobed ; flowers mon(e(dous, in a large ob- 

 long spike or i)anicle, the ])istillate flowers at the summit; 

 calyx 3-5-]>art('d ; petals wanting; stamens numerous, fila- 

 ments bi-anelied ; style sh(>rt, stigmas 3, 2-parted ; capsule 

 s[)iny. .'5-cflle(l, .'l-sccded. 



