Okdek 13— the CRUCIPERS. . 163 



2. LUNA'EIA. SaUn-flower. 



Sepals somewhat 2-lobed at base of the flower. Petals nearly e'ntire. 

 Stamens without teeth. Siliole oval or lanceolate, flat, usually very large, 

 with a stalk. Seed-stalk adhering to the partition. — Foreign, ornamental 

 plants. 



L. redivi'va. Perennials. Pods lanceolate, narrowed to each end. Lvs. sharp- 

 • toothed. 2f. 



L. bien'nis. Biennial S. Pods broad-oval, rounded at each end. Lvs. blunt- 

 toothed. @ 



3. OAPSEL'LA. Shepherd's-purse. 



Calyx equal at base. Silioles triangular, wedge-shaped at base, notched 

 at top, compressed laterally, that is, 'contrary- to the narrow partition. 

 Valves boat-shaped. Style short. Seeds 00, oblong, small. — A common 

 weed, with white flowers. 



O. Bursa-Pasto'ris. ' Shepherd' s-pwrse. Found everywhere; in fields, pastures, and 

 road-siSes. Stem growing to a foot in height, hairy below, branching. Boot 

 leaves many (when the plant has room), half a foot long, deeply-lobed and 

 toothed. Stem leaves much shorter, with two ear-shaped stem-clasping lobes 

 at base. Flowers very small, in racemes which become very long, and are suc- 

 ceeded by the little purse-shaped pods. Apr.-Sept. (See Fig. 331.) 



4. LEPII)'IUM. iPepper-grass. 



Sepals ovate. Petals ovate, entire. Silioles roundish or oval, notched 

 at the end, flattened contrary to the very narrow partition.^ OeUs 1-seed- 

 ed. Valves boat-shaped, dehiscent. ' Flowers white, racemed, numerous. 



1 Stem leaves undivided. Tlowers fmm June to Sept 2 



1 L sativum. ■ Leaves all divided and lobed. Pods round. Gardens. July. 



2 L Virginioum. Tongue-grass. Pods round, wingless. Stem leaves toothed. 



8 L rudera'le. Pods roundish-oval, wingless. Petals 0. Stem leaves entire. W. 



4 L campes'tre. .Pods ovate, winged, rough-scaly. Leaves arrow-shaped. W. 



5.' SENEBIE'EA. Swine' Cress. 



Siliole 2-lobed, appearing double. Valve somewhat turgid and inde- 

 hisoent. Cells each with 1 roundish and 3-oornered seed. Flowers 

 white, in short racemes which stand, opposite to the leaves. 



