Order 112.— EUPHORBIACE^J. 631 



j Plants downy. Fertilo calyx 5-partcd, with 2 styles, pendulous No. 1 



6 Plants hairy or scaly. Fertile calyx 5-parted, with 3 styles, each 2 or 8-clci't Nos. 2 — 4 



§ Plants densely woolly. Fertile calyx 8-parted. Styles'3, each twice 2-cleft Nos. 5, (> 



1 C. monanthogynum Mx. Stellately pubescent, tri- and dichotomously 

 branched, Blender ; lvs. on slender petioles, ovate and ovate-oblong, broad and 

 sometimes subcordato at base, mucronulate, entire, silvery beneath ; fls. in tho 

 forks, the sterile 2 or 3 in a littlo erect, stalked head ; the fertile mostly solitary 

 in the same axil, recurved ; l'r. 2 -seeded. — Qp Prairies, Piko Co., 111. (Holton) and* 

 south-westward. Herb near If high, lvs. 1' long. Pis. very small. Jn. — 

 Sept. 



2 C. glandulosum L. Hispid, glandular, tri- (or •l)-chotomously branched ; lvs. 

 clustered at the forks, petioiate, ki nee-oblong or linear-oblong, serrate, bearing 2 

 cup-shaped glands at bare ; fls. in small clusters, sessile in the forks and terminal, 

 the fertile at the base, 5-parted, thesterilo 4-parted, oetanclrous. — CD lu fields and 

 waste grounds, 111. to Va., Ga. and La. A straggling herb 1 to 3f high. Lvs. 



1 to 2' long. Sd. light ash-colored. Jn. — Sept. 



3 C. argyraritheHium Mx. Clothed with glandular scales, branched at base ; lvs. 

 oval or oblong, tapering to a petiole, obtuse, entire, silvery beneath; jls. in a 

 capitate, terminal spike, silvery whitish all over, fertile at base, 5-parted, with 3 

 styles, each B-cleft at top; sterile 5-parted, octandrous. — 11 Sandy soils, Ga. 

 (Wayne Co., Dr. Town) and Fla. (Tallahassee!). Sts. 9 to 18' high, simple, often 

 clustered. Lvs. 1' to 18" long, half to a third as wide. Scales stellate, with a 

 central gland. Fls. short-pediceled. Apr. — Jn. 



i C. maritimiini Walt. Half shrubby, diffusely and trichotomously branched. 

 branches clothed with a ste.lular tomentum ; lvs. broadly oval, obtuse, entire, sub- 

 cordate, pale above, silvery beneath, petioiate ; fls. in dense spikes, terminal and 

 in the forks, the sterile many, the fertile commonly 2 at the base; caps, to- 

 mentous. — If Drifdng sands along the seacoast, S. Car. to Fla. and Tex. (Engel- 

 mau). Sts. straggling and spreading 2 to 3f. Lvs. shining with a silvery scurf, 

 not hairy beneath, nearly as broad as long. 



5 C. capitatum Mx. Annual, woolly or tomentous, hoary, branched; lvs. long- 

 petioled, oval-oblong, obtuse, entire, rounded at base ; fls. in terminal, capitate clus- 

 ters, the fertile at the base, with a large (8" diam.) 8-ck/t calyx ; stamens 10 to 

 12. — Dry barrens of 111. to La. Also in N. J. (Kniskern in Gray's Manual). 

 Herb 1 to 2f high. Lvs. 18" to 2' long, often rather lanceolate and acutish, 

 scarcely longer than their petioles. Soeds polished, cinerous-brown, mottled. Jn. 

 —Sept 



6 C. Lindheirneri Eng. & Gray. Shrubby, erect, trichotomously branched, 

 clothed with a dense, hoary tomentum, lvs. oblong-lanceolate, rovnded or sub- 

 cordate at base, acute, entire, lower petioles elongated ; spikes terminal and in tho 

 forks, mixed or separate, sterile fls. many, sessile, fertile larger, 2 or 3 at the base 

 or alone ; cal. very woolly, $ 7 or 8-parted ; styles 3, twice or thrice forked, 

 red ; ova. very villous. — Sands, near tho coast, La., Tex. Shrub 2 to 4f high, lvs. 



2 to 3' long. ? Fls. a mass of rusty wool, 5" broad. 



8. CROTONOP'SIS, Mx. (Named for its resemblance (tfytg) to the 



genus Croton.) Flowers 3 , minute, in terminal and axillary spikes; 

 $ calyx 5-parted ; corolla of 5 petals; stamens 5, distinct ;$" calyx 5- 

 partcd ; corolla none ; stamens 5 rudimentary scales ; stigmas 3, each 

 bifid ; ovary simple ; capsule 1-celled, 1 -seeded, indehiscent.— CD Herb 

 slender, branching, silvery-scurfy, with small, alternate lvs. Upper fls. 

 sterile. 



C linearis Mx. — Sandy swamps, K J. to Fla., La. and 111. (Lapharn). Sts. as 

 slender as the flax, at length repeatedly forked, 1 to 2f high, clothed with rusty 

 glands in shining sciics, as well as the small (G to 10" long), linear-oblong, acute 

 lvs. Fr. oval, acute, muricate glandular. Jn. — Sept. 



0. PHYLLAPJTHUS, L. (Gr. ^vXXov, .Ivdoc ; the leaves of the ori- 

 ginal species arc apparently florii'erous.) Flowers S . — a Calyx per- 



