402 RHAMXACE.E. Comlalia. 



Fruit drupaceous, mostly fleshy and often edible, with a single l-l-celled stone 

 enclosing as many seeds, or 1-seeded by abortion ; seed-coats membranaceous. 

 * Embryo relatively large ; albumen not rumiuated. 

 •t— A siugle ovule in each cell. 



1. CONDALIA. Apetalous or with hooded clawed petals. Style notched or somewhat 

 2-.'5-l(iheii, its base persisting ou the incompletely 2-celled fruit. 



2. RHAMNIDIUM. Apetalous (iu our species). Style 2-lobed, its base persisting on the 

 1 -celled fruit. 



3. MICRORHAMNUS. I'etals hooded, clawed. Style notched, disarticulating close to 

 tlie small 1-celIcd fruit. 



4. BERCHEMIA. Petals acute, with incurved margins, clawless. Style slightly 2-lobed, 

 deciduous close to the elongated 2-celled fruit. 



•t— ^— Two ovules in each cell. 



5. KARWINSKIA. Petals hooded, very short-clawed. Style slightly 2-3-lobed, forming 

 a beak on the 2- or incom{)letely 4-celled fruit. 



* * Embryo small, within copious ruminated albumen. 



6. REYNOSIA. Apetalous. Style somewhat 2-lobed, its base persistent on tlie large 

 1-celled fruit. 



Tribe II. RHAMNE^. Lobes of calyx deciduous (except in Sacjeretia and one 

 species of Colubrina); disk lining the calyx-tube, or both adherent to the ovary. 

 Fruit drupaceous or becoming dry, enclosing 2 to 4 nutlets or cocci; seed-coats 

 mostly liard. 



* Fruit flesliy, free from the calyx. 



7. SAGERETIA. Calyx shallow. Petals hooded and clawed. Style short, 3-lobed. 



8. RHAMNUS. Tube of calyx rather deep. Petals small and clawless, or wanting. Style 

 rather elongated, 2-lol)ed. 



* * Fruit becoming nearly or quite dry, partly inferior. 



9. CEANOTHUS. Calyx-lobes petaloid. Petals large for the order, hooded and long- 

 clawed, often spreading away from the stamens. Style mostly elongated and 3-lobed. 

 Inflorescence usually compound and thyrsoid. 



10. COLUBRINA. Calyx not petaloid. Petals small, sessile, surrounding the stamens. 

 Flowers in small axillary umbels. 



Tribe III. COLLETIE^E. Lobes of calyx persistent ; disk lining the cup-shapeMl 



calyx-tube, mostly investing, but free from, the lower half of the ovary. Fruit 



dry, enclosing 3 cocci. 

 ll.ADOLPHIA. Petals hooded. Style short, notched. Anthers introrsely dehiscent by 



an arcuate line. 

 Tribe IV. GOUANTE^. Lobes of calyx persistent, the often star-shaped disk 



joining its tube to the entire surface of the ovary. Fruit dry, 3-winged. 

 12. GOUANIA. Petals hooded. Fruit separating through the wings into 3 indehiscent 2- 



winged segments. 



1. CONDALIA, Cav. (Named in lienor of Antotiio Condal, a Spanish 

 physician, who accompanied Loefling on his journey up the Orinoco.) — Shrubs or 

 trees with mostly divaricate and often spiny twigs, alternate mostly entire some- 

 times 3-nerved rather small leaves with minute stipules, and sessile or short-pe- 

 duncled umbel-like axillary cymes. — An. Hist. Nat. Madrid, i. 39 ; Brongn. Mem. 

 Rhamn. 48, & Ann. Sci. Nat. x. 355 ; Gray, Gen. 111. ii. 171, t. 104; Benth. & 

 Hook. Gen. i. 376 ; Baill. Hist. PI. vi. 82 ; Trelease, Trans. St. Louis Acad. v. 



