158 
THE DICTIONARY OF GARDENING, 
BARBS. Hooked hairs. n - 
BARK. The outer integuments Tet 3 kati 
wood, and formed of tissue parallel with it. ~ i 
BARK-BOUND. This condition is ‘generally the re- 
sult of very rich soil, or insufficient d ainage. In most 
fruit trees mmy exudation takes. place. a 
by Fak thorough dr “should immedia 
effected. Scrubbing the sa ES also recommended. — vin 
ting the bark with a kgs s likely to do more* harm than 
good, particularly so in the hands of the inex erfenced. a. 
BARKERIA (namo commemorative Of the late G. 
Barker, of Birmingham, an ardent cultivator of orchids). 
ORD. Orchidacew. From a scientific point of view, this 
genus should be included in Epidendrum. Very handsome, 
deciduous, epiphytal, cool-house orchids, having slender 
pseudo-bulbs, from 6in. to 12in. high, from the top of which 
the numerous flower-stems are produced. Ina cool, airy 
temperature, these plants grow vigorously, suspended in 
pans or small baskets close beneath the glass, and slightly 
shaded with tiffany. They succeed well also on flat blocks 
of wood, on the top of which they should be tied, without 
any moss, as their freely-produced, thick, fleshy roots soon 
cling to the blocks. During the season of growth, a good 
supply of water is needed, and in hot weather it may be 
applied three or four times daily; the blocks and plants 
are best immersed in water; but when at rest, a slight 
watering twice or three times a week gwill suffice. Pro- 
pagated by divisions, just previous to the commencement of 
If 
new 
B, (elegant).* fl. in loose racemes, four or five in each ; 
each blossom about picid fhe’ ga” and petals dark rose ; lip 
tted and edg with a lighter colour. Winter, 
h. 2ft. mA Of this 
beautiful slender- or 
there are two or three varieties in cultivation. ¢ 
(Lindley’s).* fl., raceme 2ft. long, ve sender 
from a to seven ‘enone near its po x 
le; lip white, with a deep purple blotch at it its 
; remaining in — for a considerable time. 
h. 2ft. Costa Rica, tert (B. M. 6098.) 
pe are praia Yasar par c; lip oblong; margins 
crenulated n pn E ae n Pt- purple. Costa Rica, aS 
Tai potas sony Tunes P -stemmed).* fl. on an erect spike ; sepals 
s w Sora AA ig neer at bg ce man at the RR 
oe eee ; otch of green in the centre. Au 
h. 1ft. Costa Rica, Very rare, 
Sh: inary nrn ji. deep rose polod ; spikes 6in. to 9ľin. 
long, from the apices of the Pg growth, often ranched, form- 
ing a dense mass of deep ae purine blossoms, which, if af dry, lasts 
from anlakas to ten weeks. A, l4ft. Guatemala. (P. B 15.13 
B. S. superbum (superb).* jl, dark rose; lip somewhat deeper 
tinted, and marked towards the base with yellow streaks. Guate- 
mala, This far surpasses the type in size ie number of flowers, 
as well as in brilliancy of colour. (W. S. O. 38.) 
spectabilis (showy).* fl. quite 2in. across, produced eight or 
_ ten together, on a > go issuing from the top of the pseudo-bulb ; 
Sepals and long, acuminate, rosy lilac; lip white, mar- 
lilac or rosy purple, ’and dotted or spotted with 
crimson. a. very distinct and desirable species lasts from eight 
; ‘te ton ty, and forms a very handsome object when 
placed in dra -room and covered over with a large glass 
“shade. ra tA (B. M. 4094.) oe 
IRONS. Instruments used in taking off 
the bark of trees, 
asta ree Bene mag Sir H. Barkly, formerly 
ustralia). ORD. Leguminose. A large 
greenhouse tree, thriving in a compost of loam and leaf 
rer propagated by ange and cuttings; the latter 
ripened, laced in oati 
bell glass, in a cool house. n m magal s 
syringifolia (Syringa-leaved). jl. golden yulow, numerous, 
d illa te 
on: x zotte Moreton E n sage e "ee 
BARK STOVE. A hothouse adapted for moisture- 
loving exotics, and having a pit from 2ft. to 4ft. deep, con- 
taining fermenting matter, chiefly tanners’ bark, by which 
means a steady heat is maintained for a considerable time. 
The Bark Stove is now almost obsolete. Bark is, however, 
still used in pine pits, and in some pro 
_ beds; but such beds are generally superseded by hot-water 
or hot-air tanks. 
BARLERIA (named after J. Barrelier, a French 
botanist of the seventeenth century). ORD. Acanthacew. 
| A genus of interesting and ornamental stove evergreen 
. shrubs. Flowers axillary or terminal; calyx four-sepaled, 
„the two outer larger than the others. They thrive best 
if grown in loam and peat, with a little rotten dung added. 
Propagated by cuttings made of the young wood, and 
placed in a similar compost, under a bell glass, in stove 
temperature, with bottom heat. 
B. flava (yellow).* fl. yellow, aggregate, terminal, tubular ; bracts 
very narrow, setose. Summer. J, lanceolate, hairy, entire. Plant 
unarmed. h. 3ft. India, 1816, SYN. B. mitis. (B. M. 4113.) 
B. Gibsoni (Gibson’s). flèpale purple, ee: er arga sub-terminal. 
Winter. l. ovate or`oblong-lanceolate, 7. A glabrous 
stove shrub, of branched habit. (B. M. sa” 
B. Leichtensteiniana (Leichtenstein’s).* fl. very or: 
spikes axillary, 2in. to 3in. long, ovoid or oblong, consisting of a 
large number of closely packed overlapping bracts, turned to 
the fore or lower part of the spike; bracts ovate-acuminate, 
mucronate, spine-toothed, one-ribbed, with prominent and curved 
veins, and lin. to ljin. long. A opposite, lin. to 2in. long, linear- 
lanceolate, entire, mucronate, tapering at the base into a very 
short stalk, Branches slender, virgate, sub-angular. South Africa, 
1870. This plant is covered over its whole surface with close, 
white, hoary down. (G. C. 1870, p. 73.) 
B. longifolia (long-leaved). fl. white; spines of whorls six. 
Summer. l ennio, very long, rough. h. 2ft. India, 1781. 
This is a biennial. 
`B. lupulina (Hop-headed). fi. yellowish; spikes ovate; bracts 
ovate, aaa inatet yit l, lanceolate, quite entire ; 
spines simple, spreading. h. 2ft. Mauritius, 1824. 
B. Mackenii (MacKen’s).* jl. purple, large, in a terminal raceme. 
Spring. 1. recurved, narrow- orato; or elliptic-lanceolate, sub- 
acute, petioled. Natal, 1870. (B. M 
B. mitis (small). Synonymous with B. fava. 
B. prionitis (Prionitis-like). orange; spines axillary, as 
in fours. Summer, J. aromas fuamoolate ovate. h. aft. 
> 
BARLEY. See Hordeum vulgare. 
BARNADESIA (named after Michael np 
Spanish botanist). ORD. Composite. Pretty greenh 
deciduous shrubs, requiring a dry atmosphere. They should 
be grown in peat, loam, and sand, in equal proportions, 
Propagated either by seeds, sown in hotbeds in March, or 
by cuttings, made of half-ripened wood in April, and placed 
in sand under a bell glass. 
