ISS HISTORY AND GEOGHAPHY OF TREES, PART I. 



Diemcn's Lmiil, in athlition to the species of eucalyptus, acacia, callistcmon, 

 and siila, which live as stiuulards tlirou<;h the ordinary winters in the neigh- 

 bourhood of London without protection. 



A nunihcr of the lij^neous trees and shrnhs of Europe, and some also from 

 otlier [)arts of the world, have been taken to New Holland and Van Dienien's 

 Land, by the settlers ; and every year packages of [)lants which stand the 

 open air in England, as well as of house plants, are sent out by the nursery- 

 men. In the botanic garden at Sydney there was in bs-2H, a collection, which 

 included the fruit trees of every |)art of tlie worlil, as far as they coukl be 

 collected, and also many of the principal European timber trees and flowering 

 shrubs. An account of this collection by the then curator of the garden, Mr. 

 Charles Frascr, will be found in the (iardoic/s ]\Ifigrizi>ic, vol, v. [)• 2'SO, It 

 is there stated that the European trees stood the extreme drought of the year 

 1827-28 better than those of warmer climates; and, while oranges, limes, 

 shaddocks, guavas, &c., were completely burnt up, a^)ples, pears, &c., stood the 

 shock without any apparent injury. To give an idea of the " capabilities of 

 the climate," Mr." Eraser states that, in " an exposed part of the garden, may 

 be seen growing luxuriantly, in a dense thicket formed by themselves, the 

 following trees ; viz., the English ash and elm, Erythrina Corallodendrum in 

 full flower, Bombax hcptanhyllum, (iynmocladus canadensis, Ficus elastica, 

 DalbcrgiaSisaoo, Tectona grondUy Phms i-'inaster and halepensis, C'rt/u/y;« s}/riit- 

 gaioViA, the English lime and sycamore, the mossy-cupped and English oak, 

 j^cacia /amariscina, Salisbiir/a odiantifolia, the tea and olive, and many others." 



The trees of Van Diemcn's Land appear to be among the most gigantic of 

 the whole world. Mr. James Backhouse, an English nurseryman who spent 

 some time in Hobart Town and its neighbourhood, and has communicated 

 some interesting information on the vegetation of that country to the Gar- 

 dener's Magazine (see vol. xi. p. 388.), gives the following measurement of ten 

 trees of the Eucalyptus robusta, or the stringy-bark tree. They all stood in 

 the neighbourhood of the Enui river, and the circumference of all the trunks 

 were taken at 4 ft. from the ground. 



No. 1., io ft. in circumference ; supposed height 180 ft. The top broken, 

 as is tha case with most largc-trunked trees ; the trunk a little injured by 

 decay, but not hollow. The tree had an excrescence at the base 12 ft. across 

 and G ft. high, protruding about ;3 ft. No, 2., .'JTi ft. in circumference. No. 

 3., 38ft. in circumference; distant from No. 2. 80 yards. No. 4. 38ft. in 

 circumference; distant from No. 3. 56 yards. Nos. 3 and 4. were round 

 trees, upwards of 200 ft. high. No. 5., 28 ft. in circumference. No. G., 30 ft. 

 in circumference. No. 7., 32 ft. in circumference. No. 8., 53 ft. in circum- 

 ference; very little injured by decay; and upwards of 200ft. high. No. 9., 

 40.» ft. in circumference ; sound and tall. No. 10., 48 ft. in circumference; 

 tubercled ; tall ; .some cavities at the base ; much of the top gone. A pros- 

 trate tree near to No. 1. was 35 ft. in circuinference at the base, 22 ft. at GG ft. 

 H)ft. at 110ft. up; there were two large branches at 120ft.; the general 

 head branched off at 150 ft. the elevation of the tree, traceable by the 

 branches on the ground, 213 ft. 



In the First Additional Supplement to the Enetfeloptedia of Agiicvllure wWl be 

 found i)ortrarts, drawn from nature, of several of the trees mentioned as 

 liaving been measured by Mr. Backhouse, drawn by Mr. John Thomi)son, a 

 friend of ours, and an' excellent artist, settled at Sydney. The iron4)ark 

 tree (Eucalyptus resinifera) measured by Mr. Thompson is 200ft. high, with 

 a clean .straight trunk of 1.30 ft. The most remarkable of these trees in ap- 

 pearance is the gra.ss tree (Xanthorrhoe^a arborescens). 



Mr. Thomas Backhouse has sown the seeds of several species of the trees 

 and shrubs of Mount Wellington and other elevated and exposed situations in 

 Van Diemen's Land, in his nursery at York, and he expresses a hope in a 

 few years to prove their hardiness ; and, as they are all evergreens, they will 

 be valuable auxiliaries to our park scenery. 



