ORDER 113. EUPHORBIACE^E. 297 



2 A. Carollniana Walt. Lvs. ovate, cordate, closely and strongly serrate ; & spikea 

 axillary, ? terminal, fruit soft-echinate, bracts with linear lobes. W. and S. 



6. MERCURIALIS, Tourn. Fls. 8 , apetalous, axillary, in bractlesa 

 spikes or fascicles. Calyx 3-parted. Sta. 1020, anth. 2-celled, extrorse. 

 Fruit 2-carpclled, 2-seeded. Herbs with opposite, petiolate leaves. 



HI. a iinua Willd. Lvs. lanceolate, &c., thrice longer than the stalks ; branches oppo- 

 site ; 3 spikes long, interrupted, seeds oval, pitted. Waysides, S. : rare. 



7. RICINUS, Toum. CASTOR OIL PLANT. Fls. 8 , apetalous. Calyx 

 3-5-parted, valvate in the bud. & Sta. oo, with irregularly united fila- 

 ments. ? Style short, stigmas 3, 2-parted, plumous, colored. Capsule 

 cchinate, 3-lobed, 3-celled, 3-seeded. Herbs or shrubs. 



It. COMMUNIS L. A stout @ herb with peltate, palmi-lobed leaves, 4 12', divided into 

 lance-shaped lobes. Southward it becomes a shrub, or tree 10 20f. Gait, for its seeds, 

 yielding the castor oil, or for the ornament of its splendid foliage." E. India. 



8. CROTON, L. Fls. e . Calyx 4-8-parted. Petals hypogynous, 48, 

 mostly minute, often (especially in the $) wanting. $ Disk with 4 6 

 lobes. Sta. 5 or more, anthers inflexed in the bud. $ Ovaiy 3-celled, 

 styles 3, 1-3-times forked. Fruit 3-carpelled, 3-seeded. Plants glandular, 

 clothed with scurf or stellate hairs. Leaves alternate. 



Downy. Fertile calyx 5-parted, with 2 styles, and pendulous No. 1 



Hairy or scaly. Fertile calyx 5-parted, with 3 styles, each 2- or 3-cleft Nos. 24 



Densely woolly. Fertile calyx 8-parted. Styles 3, each twice 2-cleft Nos. 5, 6 



1 C. mon antilogy n us MX. Stellate-downy, di- and tri-chotomonsly branched ; Ivs. 



ovate or subcordate, silvery beneath ; fls. in the forks, Prairies, 111., and S. If. 



2 C fflandulosiis L. Hispid, tri-(or 4-)chotomonsly branched ; Ivs. clustered at the 



forks, lance- to linear-oblong, serrate, with 2 concave glands at base ; fls. in clusters, 

 the sterile 4-parted, 8-androus. A straggling weed, W. and S. 1 2f. 



3 C. argyraiitliemus MX. Clothed with silvery glandular scales, branched at base ; 



Ivs. oval to oblong ; fls. in a hd. or spike, silvery all over, all 5-parted. 2f Ga., Fla. If. 



4 C. maritimus Walt. Half-shrubby, bushy, trichotomously branched, tomentous; 



Ivs. broad-oval, silvery beneath ; flowers in dense heads on long stalks ; etam. aoont 

 10 ; stigmas 1820. Drifting Fands, sea-coast, S. 2 3f. July Oct. 



5 C. capita t us MX. Lvs. ovate to oblong, long-petioled, obtuse ; $ cal. large (7"), 



7-8-cleft ; styles 3, each 4-parted to base ; seed double-convex. W. and S. 



6 C. Elllottii Chapmn. Lvs. lance-oblong, short-petiolate, acutish ; s cal. 6" diam., 



5-8-cleft ; styles 3, each 4-cleft to the middle ; seeds plano-convex. S. 2 3f. 



9. CROTONOPSIS, MX. Fls. 6" , minute, in spikes. Calyx 5-parted. 

 $ Petals 5, spatulate. Sta. 5, distinct. 2 Petals 0, 5 scales instead. Stig. 



3, each bifid. Ovary and pod 1-celled, 1 -seeded. Slender, silvery-scurfy, 

 with small, alternate leaves. Upper flowers sterile. 



C. linearis MX. Sandy swamps, N. J. to 111., and S. Stems as slender as Flax, re- 

 peatedly trifid and forked, 1 2f. Leaves linear-oblong, G 10". June Sept. 



10. FHYLLANTHUS, L. Flowers 8 , axillary. Calyx in 5 or 6 seg- 

 ments. Petals 0. Stain. 3, very short. Styles 3, bifid. Ovules and seeds 

 2 in each 2-valved carpel. Leaves alternate, in 2 ranks. 



P. Carolinensls Walt. St. slender, with alternate branches ; Ivs. oval, 610", the 

 raminl much smaller ; flowers subsolitary. @ Pa. to 111., and S. 618'. June -Aug. 



