534 



ARBORETUM AND FBUTICETUM. 



PART III. 



^03 



a* 9. R. OLEOYDLS Lin. The Olive-like Buckthorn. 



1 dentification. Lin. Sp., 279. ; Desf. AH., 1. p. 197, ; Dec. Prod., 2. 

 p. 24 ; Don's Mill. i.'. j>. 31. 



Sunont/me. H. oleifdlius Hort. 



En^riiving. Our fig. 202. 



S/icc. Char.,$$c. Diffuse, or rather erect ; leaves oblong, obtuse 

 entire, coriaceous, smooth, with netted veins beneath. (Don's 

 Mi//., ii. p. 31.) A deciduous shrub, growing to the height of 

 ,S ft., in the fissures of rocks, in Sicily, Mauritania, Spain, and 

 Greece. Introduced in 1752. In Locldiges's Catalogue, it is in 

 the list of green-house plants ; but it is generally understood to 

 be quite hardy. Though the species of the .fthamnus are nu- 

 merous, yet, as few of them attain a large size, they will not 

 occupy so much space in an arboretum as might, at first sight, be 

 imagined. Where the soil is dry, and the surface somewhat 

 undulated, the plants may be scattered over it at the same dis- 

 tances from each other as their heights; or, if there is space 

 to spare, at double this distance, which will allow each species 

 to display its natural form, and to bring its leaves, flowers, and 

 frul-t to maturity. Where the soil is not naturally dry, an arti- 

 ficial ridge of dry soil, mixed with rocks or stones, m.iy be 

 formed ; and along this the different species of /i'hamnus nay 

 be scattered. 



flfe 10. R. UXIFO'LIUS Poir. The Box-leaved Buckthorn. 



Identification. Poir. Diet., 4. p. 463; Dec. Prod., 2. p. 24. ; Don's Mill 2 



p. 31. 



Synonyme. ? R. Auxifblius Brot. Fl. Lits., 1. p. 301. 

 Engraving. Oar fig. 203. 



Spec. Char., fyc. Diffuse. Leaves ovate, quite entire, mucronate, smooth, 

 coriaceous, green on both surfaces. (Don's Mill., ii. p. 31.) A shrub, 

 growing to the height of 3 ft., a native of Numidia, and introduced in 

 1820. According to Desfontaines, it is only a variety of R. oleo"des ; 

 but, whether a species or variety, it is, at all events, a very distinct and 

 a very neat form : indeed, it may be observed of the sjx'cies of deci- 

 duous /Zhamnus generally, that they are all characterised by a par- 

 ticular kind of distinctness and permanence of appearance ; from 

 which, however much many of the sorts may resemble each other, yet 

 they can never be mistaken for species belonging to other genera. They 

 almost all grow slowly, and have wood of a hard and durable nature ; 

 and the appearance of all of them, whether as bushes or low trees, 

 has the expression of durability. The blossoms are small, and so are 

 the fruit; but both, or at all events the fruit, remain a long time on 

 the plant, as well as the leaves, most of which are pointed and 

 coriaceous, and strongly veined or ribbed ; all which adds to that 

 expression of firmness, rigidity, and permanence in the plant, which 

 we have already mentioned. 



at 11. R. PUBE X SCENS Poir. The pubescent Buckthorn. 



Identification. Poir. Diet., 4. p. 464. ; Dec. Prod., 2. p. 24. ; Don's Mill., 2. p. 31. 

 Synonyme. R. oleo'ides Lam. Fl. Fr., 2. p. 545., ed.3., No. 4075. 



Spec. Char., fyc. Diffuse. Leaves quite entire, coriaceous, pubescent. (Don's 

 Mill., ii. p. 31.) A deciduous shrub, growing to the height of 3 ft., a native 

 of the south of France and of the Levant, and introduced in 1817. Pro- 

 bably only a variety of R. oleo'Mes. 



at 12. R. LYCIOI V DES Lin. The Lycium-like Buckthorn. 



Identification. Lin. Spec., 279. ; Dec. Prod., 2. p. 25. ; Don's Mill., 2. p. 31. 

 Engraving. Cav. Icon., 2. 1. 182. 



Spec. Char., Sf-c. Erect. Leaves linear, quite entire, obtuse, smooth. Flow- 

 ers hermaphrodite. (Don's Mitt., ii. p. 31.) A deciduous shrub, a native 

 of Spain, growing to the height of 3ft. or 4ft., on the limestone hills of 

 Valencia. ^Introduced in 1752. 



Variety. 



* R. 1.2 arragonensis Asso Syn. AIT., p. 27., has the leaves yellowish 

 on the upper surface, and is found in Arragon. 



A 13. R. ERYTHRO'XYLON Pall. The red-wooded Buckthorn. 



Identification. Pall. Fl. Ross., 2. t.6-2. ; Itin., French edit, t. 90. ; Dec. Prod., 2. p. 25. ; Don's 



Mill., 2. p. 31. 

 Engravings. Pall. Fl. Ross., 2. t. 62. ; Itin., French edit., t. 90. ; and our fig. 204 



Spec. Char., tyc. Erect. Leaves linear, lanceolate, quite entire or serrated, 

 smooth. Flowers hermaphrodite. Berries oblong. (Don's Mill., ii. p. 31.) 



