1090 



ARBORETUM ET FRUTICETUM BRITANNICUM. 



obtuse, egg-shaped ; the fruit globular and small. (Linncea, vol. xii. p. 496.) 

 Mexico, oa mountains at from 10,000 ft. to 11,000 ft. elevation, where it 

 grows to the height of 4 or 5 feet. Introduced in 1838. {Gard. Mag., 1839, 

 p. 242.) 



J. Jldccida Schiede. A strong high tree with pendent shoots, with 4-rovved, 

 scaled, egg-shaped, little lance-like leaves ; the fruit globular, with projecting 

 pointed scales. Introduced in 1838, {Ibid., p. 241.) 



J. mexicdna Schiede. A high pyramidal tree with twigs and leaves re- 

 sembling those of Cupressus thurifera. The leaves do not always stand in 

 threes on the twigs, but are often opposite ; they are egg-shaped, and pointed ; 

 on the points of the youngest shoots they are only from i to J of a line long. 

 (Ibid., p. 241.) Had not been introduced in 1841. 



J. dealbdta Hort. Supposed to be a native of North-west America. It 

 has the habit of the common juniper, but with small, imbricated, sharp-pointed 

 leaves, rather distant on the shoots ; the latter are rather slender, and of a 

 beautiful glaucous colour, more particularly in the early part of summer. The 

 scent is as strong as that of J. 6'abina. Quite hardy. Introduced in 1839. 

 Hort. Soc. (Gard. Mag., 1840, p. 640.) 



J.flagelliformis Hort. A native of China, with long, slender, closely im- 

 bricated shoots (both young and old), very much resembling fine whipcord. 

 Shoots glaucous, with sharp lanceolate leaves. The fruit is small, globular, 

 but sometimes slightly angular, and very glaucous. Quite hardy, and strikes 

 freely from cuttings of the two-years-old wood. Introd. 1839. H. S. (Ibid.) 



3. gossaintluhiea Hort. There are small plants bearing this name in the 

 collection of Messrs. Loddiges, which closely resemble J. chinensis, but the 

 shoots are more slender. 



J. Bedfordihna Hort. Closely resembles J. virginiana. 



J. Hudsonmna Pin. IVob. p. 208. A dwarf procumbent shrub, about 2 ft. 

 high. Probably a variety of J. -Sabina. 



J. barbadensis L., described in our first edition, is here omitted as being 

 rather tender. 



J. hemisph<e'rica Presl grows above the boundary line of trees on Mount 

 Etna, as high as 7,100 ft. ; but it is not yet introduced. 







i 



Order LXXVIII. MPETRA^CE.E. 



Identification. Nutt. Gen., 2. 233. ; Don in Edinb. New Phil. Journ., 1826. 

 Ord. Char. Flowers dioecious. Perianth free, composed of imbricated scales, 

 which are disposed in two series. Stamens eqiial in number to the inner 

 series of scales, and alternating with them. Anthers roundish, of two distinct 

 cells. Ovarium free, seated on a fleshy disk, 3 6- or 9-celled. Ovuhim 

 solitary, ascending. St^/e 1. Stigma radiating, with as many rays as there 

 are cells in the ovarium. Frttit fleshy, surrounded by the persistent perianth 

 of 3 to 9 bony cells. Seed solitary. Embryo terete, in the centre of the 

 albumen. Radicle inferior. 



Leaves simple, exstipulate, alternate or subverticillated, evergreen ; 

 linear, heath-like. Flowers axillary, minute. Evergreen undershrubs ; 

 natives of Europe and North and South America. 



The genera in British gardens are three, which are thus contradistin- 

 guished : 

 S'mpetrum. Calyx 3-leaved, with six scales at the base. Petals and 



stamens 3. Berry depressed, containing 6 9 stones. (G. Don.) 

 Core'ma. Calyx 3-leaved, naked at the base. Petals and stamens 3. Berry 



globose, containing 3 stones. (G. Don.) 

 CERATfoLA. Calyx 2-lcave(l, with 4 bracteas at the base. Petals and 

 stamens 2. Berry globose, containing 2 stones. (G. Don.) 



