74 RHAMNACE^fc. (BUCKTHORN FAMILY.) 



3-seeded. (Rhamnus Carolinianus, Walt.) Banks of rivers, Florida to North 

 Carolina and westward. June. A shrub or small tree. Leaves 3' - 4' long. 



6. CEANOTHUS, L. JERSEY TEA. 



Calyx colored, 5-cleft, with the tube adnate to the ovary and persistent, the lobes 

 connivent, deciduous. Petals 5, longer than the calyx, hooded, long-clawed. 

 Stamens exserted. Style 3-parted. Drupe dry, composed of three 2-valved 

 1 -seeded nutlets. Embryo in fleshy albumen. Cotyledons flat. Shrubby plants, 

 with alternate serrulate minutely stipulate 3-ribbed leaves, and small flowers in 

 lateral and terminal corymbs or panicles. 



1. C. Americanus, L. Branches pubescent ; leaves deciduous, variable 

 in size, ovate or ovate-lanceolate, acute or obtuse, sharply serrate, more or less 

 pubescent, petioled ; peduncles elongated, mostly 2-leaved above. Dry woods, 

 Florida to Mississippi, and northward. July. Plant shrubby, l-2high. 

 Leaves 3-ribbed, varying from f ' (C. intermedius, Ell.) to 3' long, often nearly 

 smooth (C. herbaceus, Raf.). Flowers and pedicels white. 



2. C. microphyllus, Michx. Stem erect, diffusely much-branched ; 

 leaves perennial, small, obovate, slightly crenate, 3-ribbed, glossy above, with 

 scattered hairs beneath ; those in the axils clustered ; corymbs small, terminal. 

 Dry barrens, Florida and Georgia, and westward. April and May. Shrub 

 l-2 high, yellowish. Leaves 2"- 3" long. Pedicels and flowers white. 

 Drupe black. 



3. C. serpyllifolius, Nutt. Decumbent, diffusely branched ; branches 

 filiform ; leaves very small, ovate-elliptical, serrulate, obtuse, the lower surface, 

 as well as the petioles, strigose ; peduncles axillary ; flowers few, in a simple 

 corymbose head. Near St. Maiy's, Georgia. Leaves 3" - 5" long. Pe- 

 duncles 12-15-flowered. 



7. COLUBRINA, Rich. 



Calyx herbaceous, with spreading lobes. Nutlets opening at the apex and 

 down the inner angle. Embryo in thin albumen. Otherwise chiefly as in Ce- 

 anothus. Tropical shrubs, with alternate parallel-veined leaves, and small 

 flowers in close axillary cymes. 



1. C. Americana, Nutt. Leaves coriaceous, ovate-oblong, entire, the 

 lower surface, as also the branches and calyx, covered with a dense rust-colored 

 pubescence ; cyme small, shorter than the petiole ; petals spatulate, emarginate, 

 shorter than the calyx ; drupe 3-lobed. South Florida, Leaves 2' - 4' long. 



Drupe 4" in diameter. 







8. GOUANIA, Jacquin. CHAW-STICK. 



Calyx 5-cleft, partly adnate to the ovary, the lobes spreading. Petals 5, 

 shorter than the calyx, and inserted into the sinuses of the 5-lobed disk which 

 lines its tube, hooded, and enclosing the short stamens. Ovary 3-celled, 3-ovuled. 

 Style 3-cleft. Drape dry, 3-lobed or 3-winged, separating from the central axis 



