022 ARBORETUM ET FRUTICETUM BIIITANNICUM. 



of /Styrax gvandifolium, with which, as it does not frequently flower in a 

 young state, it is generally confounded in nurseries. 



ORDER XL VI. SAPOTACE1E. 



ORD. CHAR. Calyx regular, persistent. Corolla of as many lobes as there 

 are divisions in the calyx, rarely double or triple that number, deciduous. 

 Stamens epipetalous, distinct, definite ; fertile ones equal in number to the 

 segaients of the calyx, alternating with the segments of the corolla ; sterile 

 ones, when present, alternating with the fertile ones. Ovarium many-celled. 

 Cells 1-seeded. Berry many-celled, or only 1-celled by abortion. Seeds 

 nucamentaceous. Testa bony, scraped in front. Albumen fleshy. (G. Don.} 

 Leaves simple, alternate, exstipulatc, deciduous or evergreen ; quite 

 entire, coriaceous. Flowers axillary. Shrubs or low trees ; natives of Africa 

 and America. The genera are two, and in British gardens they require a wall. 



Calyx 10-parted. Corolla 5-cleft. Drupe containing a 2 E- 

 celled nut. 



Calyx and Corolla 5-parted. Stamens 10. Berry 1-seeded 



GENUS L 



ARGA'NIA Roem. et Schultes. THE ARGANIA, Lin. Syst. Pentandria 



Monogj'nia. 



Identification. Rcem. et Schultes Syst., 46. ; Don's Mill., 4. p. 27. 

 Synonymes. Sideroxylou spindsum Lin. ; 1'Argan, Ft: ; Eisenholz, Get, 

 Derivation. From organ, the aboriginal name of the tree. 



Gen. Char., fyc. Calyx 5 10-cleft: the leaflets, or rather scales, roundish, 

 concave, disposed in a double series. Corolla cup-shaped t 5-parted, with 

 ovate-lanceolate subemarginate segments ; having 5 petal-like linear-subulate 

 segments adhering to the base of the corolla, and alternating with its 

 segments. Stamens 5, filiform, length of corolla, and adnate to its base. 

 Anthers incumbent, ovate, keeled on the back. Ovarium conical, hairy. 

 Style glabrous, length of stamens. Stigma simple. Drupe ovate, terminated 

 by the style, 2 3-celled. Cells 1-seeded. Seeds hard, smooth, having a 

 longitudinal furrow inside. (Dons Mill.') 



Leaves simple, alternate, exstipulate, sub-ever- 

 green ; entire. Flowers lateral, axillary, scattered 

 or crowded, sessile. Corolla greenish yellow. 

 Fruit dotted with white, size of a plum, full of 

 white milky juice. Tree or large shrub, sub- 

 evergreen ; native of Morocco, and somewhat 

 tender in British gardens. 



t * 1. A. SIDERO'XYLON Rcem. et Schultes. The 

 Iron-wood Arg^inia. 



Identification. Rcem. et Schultes Syst., 4. p. 502. ; Don's Mill., 



4. p. 28. 

 Synonymes. Sideroxylon spinosum Lin. Sp. p. 279. ; Elseodfen- 



dron A'rgan Retz. Obs. 6. p. 26. ; .Rhamnus pentaph^llus 



Jacq. et Boccone, Schousb. Mar. p. 89. ; .Rh&nnus siculus Lin. 



Syst. 3. p. 227. 

 Engravings. Comm. Hort., t. 83. ; and our fig. 1208. 



Spec. Char., fyc. An evergreen tree of middle size, 

 with a bushy head. Branches terminated by 

 strong spines. Leaves lanceolate, entire, bluntish, 1208 . "A. sjaosyu>n. 



