430 EUi*HOKBIACE.E. (SPUKGE FAMILY.) 



acute; petals of butli sexes scarcely shorter than the calyx, woolly margined ; 

 stamens 20 or more; styles simple, truncate or einarginate ; capsule much 

 longer than the calyx ; seeds glabrous. Central Alabama, flowering through- 

 out the year. Stem 6- 10 high. Leaves 2' -3' lung. 



* * Styles very short: stiymas 18-24: petals none: stamens must/// 12: capsule 



3-celled. 



2. C. maritimus, Walt. Herbaceous, widely branched, scurfy-pubes- 

 cent ; leaves thick, ovate, obtuse, entire ; spikes long-peduucled, capitate, 

 few-flowered, the sterile and fertile ones mostly separate ; calyx 5-cleft, with 

 ovate-obtuse lobes ; capsule much longer than the calyx ; seeds ovoid, mottled. 

 Drifting sands along the coast. July -Oct. Stem 2 - 3 high. Leaves 

 2' -3' long. 



3. C. Texensis, Miiller. Annual, dioecious, stellate toinentose; stem 

 dichotomous (l-2 high) ; leaves lanceolate, short-petioled ; sterile racemes 

 short; petals none ; fertile flowers axillary, solitary ; capsule nearly globose, 

 covered with tufts of deciduous down ; seed biconvex. Alabama (J/oAr), and 

 westward. 



* * * S///IPS 3, twice 2-parted or 2-cleft : stiymas 12: petals of the sterile flowers 



5-6, nf the fertile mostly none : stamens 8-30 : capsule 3-celled. 



4. C. Elliottii, Chapm. Annual, stellate-tomentose throughout; stem 

 slender, erect, umbellately much branched; leaves short-petioled, lanceolate 

 or oblong, obtuse at each end ; sterile flowers few, minute ; calyx 5-parted, 

 unequal, longer than the petals; stamens 8- 10 ; "fertile flowers several, clus- 

 tered ; calyx 5 - 8-parted, as long as the capsule ; seed oval, smooth. (C. ellip- 

 ticum, Ell.) Pine barrens, Florida to South Carolina. July - Sept. Stem 

 2 - 3 high. Leaves H' - 2' long, 



5. C. capitatUS, Michx. Annual, woolly; stem umbellately branched; 

 leaves long-petioled, lance-oblong, rounded at the base ; sterile flowers numer- 

 ous, the petals fimbriate; fertile flowers crowded; calyx 7 - 10-parted, with 

 the lobes obtuse ; seed smooth. Georgia, along railroads, and westward. 

 Stem 2 -4 high, 



6. C. humilis, L. Low (lhigh), shrubby, stellate-tomentose; leaves 

 long-petioled, cordate-ovate, acuminate; racemes densely 10- 15-flowered ; 

 calyx woolly, 5-parted ; petals of the sterile flower oblong ; stamens 20-30; 

 petals of the fertile flower narrow linear ; capsule downy. Florida ( Calnnis). 



7. C. Betulinus, Vahl. Stellate-tomentose; stem low (1-U high), 

 with slender branches ; leaves small (!' or less long), triangular-ovate, trun- 

 cate at the base, coarsely toothed, rough above, twice as long as the petiole ; 

 racemes bisexual ; stamens 10-11; capsule subglobose. Rocky pine woods, 

 South Florida (Curtiss). 



8. C. argyranthemus, Michx. Herbaceous, perennial, covered through- 

 out with stellate silvery scales ; stem erect, umbellately branched ; leaves obo- 

 vate or oblong, obtuse, entire, narrowed into a petiole ; racemes sessile, oblong, 

 obtuse ; the fertile flowers numerous and crowded ; calyx 5 - 6-parted, with the 

 lobes acute; stamens 10- 12, hairy; styles long and slender; capsule much 



