NEW GARDEN PLANTS.—ARBORICULTURAL STATISTICS 
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lira teimt finals. 
LomAtia ferruginea, B. Brown. Busty-leaved Lomatia.—Order Proteaceae (Protead tribe).—A fine half- 
hardy shrub, useful on account of its fine foliage, which when young is ferruginous, and becomes deep green as 
it acquires age. It grows ten to twelve feet high, and has hipinnatifid leaves six to twelve inches long. The 
flowers are said to be crimson within and green externally; but these have not been as yet produced in cultiva¬ 
tion. Native of South Chili, and introduced lately hy Messrs. Yeitch. 
Boronia rutosma. —Hue-scented Boronia.—Butaceae § Diosmese (Huewort tribe).—Glaucous, much branched; 
leaves oblong ovate or obovate sessile fleshy, apiculate, one- 
nerved ; flowers in trichotomous corymbose many-flowered 
cymes, pedicels thickened beneath the flowers ; calyx lobes 
ovate acute; filaments ciliate in the lower half.—M. This 
very pretty Boronia is known in cultivation as B. spathulata , hut 
does not appear to be the species so named by Dr. Lindley, 
differing obviously in its much branched habit, and its many- 
flowered corymbose inflorescence. The whole plant has a ten¬ 
dency to trichotomous branching, and thus forms a dense hush, 
with terete branches scattered with glandular dots, and bearing 
opposite fleshy glaucous oblong ovate, or obovate apiculate 
leaves, furnished with numerous transparent dots, and one- 
nerved. The flowers terminate the branches, forming a kind 
of corymbose cyme trichotomously divided ; the pedicels are 
about an inch long, thickened at top ; the calyx lobes are ovate 
acute brownish-green, dotted, and traversed by forked nerves. 
The petals are ovate apiculate patent, twice as long as the 
calyx, pink, becoming deep rose when dry. The eight stamens 
are as long as the calyx, ciliate in the lower half, covered exter¬ 
nally above with round glands, the anthers attached below the 
apex. The ovary is seated on a broad hypogynous disk twice 
its own width, and is dotted, four-celled, terminated by a 
simple style, with an obscurely four-lobed stigma. The cells 
of the ovary are tivo-ovulate, but only one seed seems to be per¬ 
fected. The plant, both fresh and dry, has a strong odour of 
rue. "We are indebted to Mr. Watson, gardener to Mrs. Tred- 
well, of Norwood, for the specimen represented by our figure. 
Centradenia ovata, Klotzsch. Ovate-leaved Centradenia. C. divaricata, Klotzsch. Divaricate Centra- 
denia.—Order Melastomaceae (Melastomad tribe.)—Two stove herbaceous plants from Central America, introduced 
by M. Warczewitz to the Berlin gardens. The former has ovate leaves, and trichotomous many-flowered cymes of 
pink flowers. The latter is more straggling with long acuminate leaves, and few terminal white flowers. 
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AEBOEICTTLTUEAL STATISTICS. 
¥ E are indebted to the Eev. H. P. Marsham, of Norwich, for the following statement of a very 
curious fact connected with the growth of trees, which he has lately observed. Mr. Marsham 
writes :— 
“ I have measured for the last four years about thirty trees, of all ages and size, as nearly at the 
same time of year as possible, viz., between May the 4th and 14th. I have always taken my measure 
at five feet from the ground, and I have marks upon the trees, so that the measuring tape invariably 
goes over the same place. Now, it appears that during the last year, viz., from May 14th, 1851, to 
May 4th, 1852, with very few exceptions, there has been no increase whatever, as will be shown. 
I should at the same time add, that no branches have been removed, nor has any other known circum¬ 
stance happened in any way to retard them. 
“ An Oak (acorn in 1803), whose average increase is two inches annually, has this year no 
increase. 
“ A Cedar, about thirty-five years old, whose annual average is two inches; this year only one 
and a half inch. 
“ A Cedar, planted in 1747, whose annual average is one and a-half inches; this year no increase. 
“ Quercus rober, planted 1820; annual average, two inches; in 1852, no increase. 
BORONIA RTJTOSMA. 
