664 



ARBORETUM AND FRUTICETUM. 



PART III. 



382 



383 



ending in a pungent point. It is 

 a native of New South Wales, and 

 grows to the height of 10 ft., flow- 

 ering from April to July. 



A. ve)■ticiilata^^"ii^d. [Bot.Mag., 

 110., and our Jig. 384.) has the 

 dilated petioles linear, and disposed 

 verticillately. It is a well-known 

 species, easily recognised by the 

 figure, a native of Van Diemen's 

 Land.which has l>een in cultivation 

 111 England since 1780, flowering 

 irom March till May, and occa- 

 Monally ripening seeds, even in 

 the open air. A plant of this 

 species in the Horticultural So- 

 ciety's Garden stood out as a 

 standard, with very little protec- 

 tion, from 1832 till January, IBofi ; 

 when it was killed, or much in- 

 jured, by the severe frost. It had, 

 however, no protection. One in 

 the same garden, against the wall, 



was also much injured ; but it had no protection in front. A. v. 3 latifilia Dec. has stood out 



against a wall in the Horticultural Society's Garden since 1831. 



2. Conjugato-pinndta'. 



Sect. Char. Leaves with one pair of pinna;, each pinna bearing fe\f or manv pairs of leaflets. 

 This is an artificial section, composed of a heterogeneous assemblage of species, the most part of 

 which are not well known. {Don's Mi//., ii. p. 408.) 



A. gninmifera Willd. has the pinna? bearing 6 pairs 

 of linear obtuse leaflets. It is a native of the north 

 of Africa, near Mogador, where it forms a tree of the 

 middle size, and yields the gum Arabic, in common 

 with several other si>ecies. It was introduced in ]8'23. 

 A. coroni//<f/d/ia Desf is a tree from the same coun- 

 try, introduced in 1817. 



A. pu/clieila R. Kr. [Bot. Cab., t. 212. and our 

 figs. 385,380.) is a smooth shrub, with the pinna- bear- 

 ing 5 — 7 pairs of ohiong-obovate obtuse leaflets, and 

 having its heads of flowers solitary. It is a native of 

 New Holland; was intro(Iuced in 1803; and grows to 

 the height of 5 ft. or fi fl. 



A. drlincns Burch. {Don's Mi//., 2. p. 408.) and A. 

 viridiriimis Burch. (ibid.) are natives of the Cape of 

 Good Ho|>e, which have been some years in British 

 green-houses. They lx)th grow to the height of from 

 3 ft, to 6 ft., and continue flowering from April to July. 



3. S]ncijii))(r. 



Sect. Char. Leaves bipinnato, with few or many pairs of pinna?, each pinna bearing many pairs 

 of leaflets. Flowers disposed in spikes. (Don's Mill., ii. p. 409.) 



l:>:) 



li-ii 



A, Unarmed Trees or Shrubs. 



A. lophantha Willd., Mimosa elegans Bot. Rep.^ (Bot. 

 Cab., t. 716., and our/i^. 387.), is a species in very gene- 

 ral cultivation. It will grow to the height of 6 ft. or 8 ft. 

 in 2 or 3 years from the seed, flowering the first year. It 

 was introduced in 1803, from New Holland; and its fine 

 yellow flowers, which are somewhat fragrant, are pro- 

 duced from May to July. There is a plant of it against 

 the wall, in the Horticultural Society's Garden, 10 ft. or 

 12 ft. high; one at Abbotsbury Castle, Dorsetshire, grow- 

 ing as a standard in the open air, without the slightest 

 protection, which is 40 ft. high, and ripens its seeds 

 freely ; and one in the grounds of E. Pendarvis, Esq., './ 

 at Pendarves, Cornwall, which is 20 ft. high. ,f ■T'' 



B. Prickly or spiny Trees or Shrubs. 



A. cclfra Willd., Mim6sa c^fra Thunb., has leaves with ."j— 10 pairs of pinnte, each pinna bearing 

 20—30 pairs of lanceolate-linear leaflets. It is a native of the Cape of Good Hope, introduced in 

 1800 ; and forms a tree from 12 ft. to 20ft. high. 



A. d/hida Delil. {Fl. .F,gi/pt. H5., t. 52. f 3.), the Egyptian thorn, has straight stipular prirklcs, 

 and leaves with .S— 4 pairs of pinna?, each pinna bearing 9 — 10 pairs of oblong.linear glaucous 

 leaflets. It is a native of Upper Egypt, where it grows to the height of 20 ft. 



