376 ARBORETUM. AND FRUTICETUM. PART III. 
of maturity to the young wood as will enable it to endure the 
winter. 
App. i. Doubtful Varieties of Tilia eurcpa\a and americana. 
In the garden of the London Horticultural Society there are some names 
attached to young plants of lime trees, which will not be found in the fore- 
going enumeration as distinct.. The reason is, that we have not been able to 
satisfy ourselves that they were sufficiently distinct from the species and 
varieties which we have enumerated to be worth recording. Among these 
names are, 7’. platyphylla véra, 7’. p. minor, 7. pre‘cox, 7’ vitifolia, 7’. laxi- 
flora microphylla, and 7’. pubéscens rugosa. 
App. I. Other Species belonging to the Order Tilidcee. 
The genus Gréwia L. (Dec. Prod., i. p. 508., and Don’s Mill., i. p. 547.) consists of a great number of 
species, mostly natives of tropical climates; but, as several of them inhabit Himalaya and the islands 
in the Indian Ocean, it is probable that some species might succeed in the neighbourhood of London, 
against a wall. In the Himalaya, Mr. Royle states that the inner bark of Gréwia oppositifdlia is 
used for the same purposes as that of the lime tree is in Europe; that the leaves of G. didyma and 
other species are given as fodder to cattle, and are dried and stacked up for winter use. The wood is 
used, on account of its lightness, for making boats. Some of the species of Gréwia yield pleasant 
acid berries, much used for making sherbet. ‘The species cannot be considered as likely to prove very 
ornamental in our gardens, but they will enrich them by increasing the variety. The species which 
might be tried are the following: G. oppositifdlia Roxb., a Nepal shrub of 6ft. with purple flowers ; 
G. biloba G. Don, a shrub, native of China; G. occidentalis L., a shrub, native of the Cape of Good 
Hope, which grows about the height of 10 ft., has leaves like those of the small elm, purple flowers, 
and has been cultivated in British green-houses since 1690; G. populifdlia Vahk/, a shrub with leaves 
like those of Pépulus trémula, found in Egypt; G. pumila Ham., found in Nepal; G. velutina 
Vahl, found in Arabia; G. echinulata De/z/e, found in the north of Africa. The only one of these 
species which is at present in British gardens is G. occidentalis Bot. Mag., t. 422., which well deserves 
a trial against a conservative wall. 
CHAP. XIX. 
Pan 
OF THE HARDY AND HALF-HARDY LIGNEOUS PLANTS OF THE ORDER 
TERNSTROMIA CEE. 
DISTINCTIVE Characteristics. Thalamiflorous. (H. B.) Calyx with an imbri- 
eate zstivation. Stamens with filaments monadelphous or polyadelphous, 
and anthers 2-celled to 4-celled. Leaves alternate. (Lindley’s Introd. to N. S.; 
and Don’s Mill.) The species which endure the open air, belonging to this 
order, are included in two tribes, Gordoniéze, and Camelliéz. 
Sect. I. Hardy and half-hardy ligneous Plants belonging to the 
Tribe Gordoniéz. 
Common Character. Sepals 5, free, or joined together at the base. Petals 
usually connected at the base. Stamens numerous, with filiform filaments, 
connected at the base. Anther oval, vane-like. Styles 5, distinct, or 
connected only at the base, or usually united to the tip. Carpels 5, more — 
or less united, 1—2-seeded. Seeds few. Albumen none. Embryo straight. 
Radicle oblong. Cotyledons leafy, folded lengthwise. Plumule inconspi- 
cuous. Trees and shrubs of America; a few of Asia. Leaves alternate, 
usually deciduous, oval or oblong, feather-nerved, and without stipules. 
(Dec. Prod., i. p. 527.) The genera are three; and their differential charac- 
ters are as follow: — 
