402 RHAMNACE^. Condalla. 



Fruit drupaceous, mostly fleshy and often edible, with a single 1-4-celled stone 

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

 * Embryo relatively large ; albumen not ruminated. 

 -1— A single ovule in each cell. 



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

 2-3-lobed, its base persisting on the incompletely 2-celled fruit. 



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

 1 -celled fruit. 



3. MICRORHAMNUS. Petals hooded, clawed. Style notched, disarticulating close to 

 the small 1 -celled fruit. 



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

 deciduous close to the elongated 2-celled fruit. 



■i— +- Two ovules in each cell. 



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

 a beak on the 2- or incompletely 4-celled fruit. 



* * Embryo small, within copious ruminated albumen. 



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

 1 -celled fruit. 



Tribe II. RHAMNE^. Lobes of calyx deciduous (except in Sageretia 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 hard. 



* Fruit fleshy, 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-lobed. 



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



9. CEANOTHUS. Calyx-lobes petaloid. Petals large for tlie 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. COLLETIEJ^. Lobes of calyx persistent ; disk lining the cup-shaped 

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

 dry, enclosing 3 cocci. 



1 1 . ADOLPHIA. Petals hooded. Style short, notched. Anthers introrsely dehiscent by 

 an arcuate line. 



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

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



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

 winged segments. 



1. CONDALIA, Cav. (Named in honor of Antonio 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, G^n. 111. ii. 171, t. 164; Benth. & 

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



