264 Reviews and Extracts. — Horticulture, Sfc. 
part of the g-reenhouse to flower. When done flowering, they should not, as rs 
often tlie case, be thrust away into any by-corner out of sight, but should have an 
open situation to perfect their leaves, and be free from injury by frost. This sum- 
mer and winter uianageuient, and but seldom shifting, will keep them in fine 
flowering condition for many years. A few words are said relating to the Bouvdr- 
dia triphiiHn and ilranthls hy^ni^iliti, which are followed up with some intelligent 
remarks, by J. D.j we suppose"Mr. J. Denson, of Bayswater. 
Oil raising Ser^iUitig Ranunculuses. By the Rev. Joseph Tyso. 
The system consists in having some of the best show flowers of each class, which 
produce a y;er/ea/7;>/«/w, or seed vessel, either dark, white, scarlet, crimson, yel- 
low, striped, &c.; and a number of the best semi-doubles of each corresponding 
class, producing a/it/iers, as well as pericarps. Then if a new dark flower is 
desired, fertilize N^aavva, T'ariat, Quijcns, or any good dark flower, with the pol- 
len, of a dark semi-double, or nearly double flower, containing the best properties 
as to colour, shape of petals, and general habit. If a superior flower, with a 
yellow ground, and dark edging, be desired, then fertilize Grand Mnnarque^ 
Julius, or ^irand Berj;rf, with the pollen of a yellow-edged flower, of first-rate 
properties. Those that have the greatest number of petals are to be preferred, 
so that they have anthers producing farina, A similar method must be pursued 
in order to obtuin a superior flower of any other class. The seed generated in 
this way will certainly produce some fine varieties. 
S/iej)herdia ariientea. Described by J. B. Russell, Esq. 
This beautiful tree grows spontaneously in the extensive plains on the banks of 
the Missouri, and resembles the F'edgnus argentea so much, that they might 
easily be mistaken one for the other when not in fruit. The Messrs. Winships, 
nurserymen, at Brighton, near Boston, are supposed to be the only persons who cul- 
tivate it to any extent. Their standard tree, is about fourteen feet high, and eight 
years old from the seed. The tree is perfectly hardy, grows vigorously in any 
part of North America, and is said to bear a near resemblance to the Olive Tree ; 
it is one of our earliest flowering trees, being covered with blos.soins in March. 
Its fruit is about the size of the Red Antwerp Currant, much richer to the taste, 
and forms one continued cluster on every branch and twig. 
On the Culture of the Gcsneria-. By Mr. S. Appleby. 
All the species, under the writer's care, grow from leaves taken close oft' by the 
stem or root stock ; he iiovvever, prefers shoots taken off" at the second joint from 
the top, and put into sand, under bell or hand glasses, and placed upon a warm 
flue, and shaded with thin white paper. As soon as they are rooted they are pot- 
ted in 'a compost of heath mould, vegetable earth, and perfectly rotten dung, in 
about equal parts, and unsifted ; they are afterwards shifted into pots six inches 
wide at top, and plunged in the pine pit; when in full growth give a good supply 
of water, occasionally sprinkling it over the leaves. When done flowering they 
are treated much in the same manner as that recommended by an Amateur, for the 
treatment of the Trevirdna coccinea, page 50 of our Register, except in the divi- 
sion of roots. When the Gloxinia maculdta has done flowering, the pots are 
removed into a cool room, and kept dry until the tops are dead ; they are then cut 
oft", and the roots shaken from the soil, and each strong root potted in a pot six 
inches wide, and then placed in the warmest forcing house. 
