484 ARBORETUM AND FRUTICETUM. PART III. 
CHAP. XXVIIL 
OF THE HALF-HARDY LIGNEOUS PLANTS OF THE ORDER 
ZYGOPHYLLA'‘CEA. 
& Melidnthus major L. (Bot. Reg., t. 45., and our fig. 153.) is a 
well-known suffruticose green-house plant, admired for the 
beauty of its glaucous leaves, and the sharp and remarkable notch- 
ing of its leaflets. It has stood out in many 
154 situations in the neighbourhood of London, 
at the base of a wall, protected only during the 
most severe weather. It has even flowered 
in the open air in some situations, In the 
Oxford Botanic Garden, this plant has stood 
out for many years at the base of a south wall, : 
and also at the base of an east wall, and has £7, 
flowered in both situations, the last time in 
1834. In Devonshire, at Kingsbridge, in the 
garden of the Moult, it has stood out for many 
years asa bush; and, in November, 1835, was 
between 10 ft. and 12 ft. high. 
% Zygophgllum sessilifilium L. (figured in 
Bot. Mag., t. 2184. and our fig. 154.), a native of 
the Cape of Good Hope, and Z. Morgsana L., 
also from the Cape, both green-house plants, : é ‘i 
which have been upwards of a century in this country, and which are interesting for their peculiar 
foliage and yellow flowers, may, with other ligneous Cape species, deserve a trial in favourable 
situations against a conservative wall. 
CHAP. XXIX. 
OF THE HARDY AND HALF-HARDY LIGNEOUS PLANTS OF THE 
ORDER RUTA‘CEE. 
In this order there are two genera, Ruta and Aplophyllum, which contain 
some undershrubs, hardy or half-hardy. They are thus contradistin- 
guished : — 
Ru‘ta L. Calyx 4-parted. Stamens 8. Styles 4, connected. Ovary 
almost stalked. Capsule 4-lobed, 4-celled. (Don’s Miil., i. p.775.) Leaves 
compoundly divided. 
Aptopay’LLuM Andr. Juss. Calyx 5-parted. Stamens 10. Styles 5, 
connected. Capsule 5-lobed, 5-celled. (Don’s Mill., i. p.775.) Leaves 
undivided. 
Genus I. 
LL 
RUTA L. Tue Ruz. Lin. Syst. Octandria Monogfnia. 
Identification. Tourn, Inst., t. 133.; Lin. Gen., 523. ; Dec.Prod., 1. p. 709. ; Don’s Mill., 1. p. 778. 
Synonymes. Rue, Fr. ; Raute, Ger. 
