AN ENCYCLOPAEDIA OF HORTICULTURE. 
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Giadiolus cornu 
G. Quartinianus (Quartin Dillon’s). A. yellow, flushed and 
spotted with scarlet ; — herbaceous, lanceolate, about 2in. 
long ; spike about six-flowered. August. l. linear-ensiform, lft. 
or more long, rigid, prominently nerved. h. 3ft. to 4ft. 
Africa, 1883, (B. M. 6739.) 
G. recurvus (recurved). fl. yellow, thickly dotted with blue, 
which colour eventually predominates, violet-scented; spathes 
about half the length of the corolla, much longer than the 
tube. Apriland May. l. three, outer one nearly the ‘height of 
the stem. Stem lft. to 3ft. high, slender, erect. Root sheath 
white, mottled with purplish-brown. 1758. The flowers of this 
species are the most exquisitely scented of the whole genus. 
(B. M. 578.) 
G. sambucinus (Elder-scented). 
bucina. 
G. Saundersii (Saunders’).* fl. crimson, spotted with white, six 
to twelve, rather remote; perianth šin. to.3}in. in diameter ; 
anthers yellow. Autumn. J. 2ft. to 3ft. long, din. to Zin. broad, 
strongly nerved. A. 2ft. to 3ft. _ 1871. (B: M. 5873.) 
G. segetum (cornfield). M. rose-coloured, in two rows; lower 
segments unequal, each with a long, narrow white spot. h. 2ft. 
South Europe, 1596. (B. M. 719.) 
G. sericeo-villosus (shagey-stemmed). /l. a very peculiar yellow- 
green, tinged with pale yellowish-brown ; spikes many-flowered ; 
corolla limb tinged with red, campanulate; spathes shaggy. 
June. J. linear-ensiform, striped. Stem with shaggy-silky 
clothing. h. 3ft. to 4ft. 1864. (B. M. 5427.) 
G. fe igen (sulphur). A synonym of Babiana stricta sul- 
phurea. 
G. tristis (sad). fl. cernuous, 2in. to 3in. deep; corolla tube 
funnel-shaped, rather shorter than the divisions, the ground- 
work yellow, the three upper segments minutely spotted all over, 
both externally and internally, with small reddish-brown dots, 
the three lower ones narrower and spotted only on the outer half. 
July. l. with long cylindrical spathes below, almost tetragonal. 
h. lft. Natal, 1745. (B. M. 1098; Ref. B. 23.) 
G. vittatus (striped). fl. pink, with darker stripes; anthers 
purple ; corolla erect, funnel-shaped. May. J. ensiform. Stem 
8in. to 12in. high, simple or branched. 1760. (B. M. 538, under 
name of G. undulatus var.) 
Varieties. Named collections are expensive, and not 
largely grown, unless they are required for exhibition. 
The subjoined list includes a selection of new and older 
varieties, of varied colours, that are amongst the best 
for this purpose, although it contains only a few com- 
pared with the large number offered for sale by nur- 
serymen. Seedlings are now very good, if obtained from 
a reliable source, and answer for purposes of de- 
coration almost equally as well as named ones, excepting 
the well-known Brenchleyensis and gandavensis varie- 
ties, from which the majority of those in cultivation 
have descended, and which are now tolerably cheap, and 
well worth growing on an extensive scale. 
Tropical 
A synonym of Babiana sam- 
LEIGH, white, tinted, rose, flaked pale purple > 
striped carmine, 
and flake on each petal; Mars, deep scarlet; MASQUE DE FER, 
ivory-white centre; NAPOLEON IIL, scarlet, blotched white : 
NEOCLES, white, purple on the lower petals; Picrum, salmon- 
violet stripe on lower petal, fine ; REMBRANDT, brilliant-scarlet, 
good; Remus, bright rosy-purple, flaked crimson; REV. M. J 
Gladiolus—continued. 
BERKELEY, orange-scarlet, flaked carmine, pure white centre ; 
RICHARD Dean, light crimson, carmine stripe on lower petal ; 
SIR STAFFORD NORTHCOTE, salmon-red, flaked crimson ; SOLFA- 
TERRE, yellow, spotted carmine; TELAMON, flesh-colour, flaked 
carmine, white throat; THOMAS METHVEN, violet, tinted rose ; 
Una, scarlet, white centre, petals flaked white, fine; VICTORY, 
crimson, flaked purple centre, fine; W. E. GUMBLETON, rosy- 
purple, striped carmine, maroon spots, fine decorative variety ; 
YELLOW KING, yellow, orange centre, flaked carmine. 
GLADWYN. Sze Iris fetidissima. 
GLANDULAR. Covered with hairs, bearing glands 
upon their tips. 
GLANDULOSE. Bearing glands. 
GLANDULOSO-SERRATE. Having serratures 
tipped with glands. 
-GLAREOSE. Growing in gravelly places. 
GLASS. The quality and thickness of Glass are 
important considerations in the construction of houses 
for horticultural purposes. Since the value of light for 
plants has been more fully recognised, and Glass of good 
quality has become much cheaper, improvements have 
been generally made which entirely supersede the old 
system of inserting very small panes. Various sorts of 
Glass have been tried at different times, but none is 
found to equal good sheets of not less than 2loz. or 
240z. to the square foot, where the panes are intended 
to be large. It is not advisable to have the latter more 
than 3ft. long for any plant structure, on account of. 
their weight and the expense of repairs, should any 
breakage occur. Opaque corrugated Sheet-glass, and 
rough or unpolished Plate-glass, have each been tried for 
various plant houses, but have been found unsuitable on 
account of admitting insufficient light in dull weather, 
and also as not affording the requisite shade for tender 
plants in summer without additional covering being 
applied. Green-tinted Glass is sometimes used where a 
subdued light is desirable, such as a house devoted to 
ferns. This does not prevent the necessity of giving 
other shade in addition on bright summer days. Except- 
ing for frame sashes or small panes in houses, Glass that 
only weighs 160z. to the square foot should not be used 
for glazing any framework that is exposed to hail or 
snow storms and other rough weather. Curvilinear roofs 
require specially bent Glass for certain parts, which, how- 
evér, costs nearly double the price of the ordinary kind, 
and consequently renders repairs to such structures con- 
siderably more expensive. If Glass is of bad quality, the 
destruction, by burning, of the tender foliage of plants 
beneath is almost certain. This is caused by numerous 
defects in the Glass acting as foci. 
GLASSWORT. See Salicornia. 
GLASTONBURY THORN. See Crategus 
Oxyacantha precox. ct 
GLAUCESCENT. Having something of a bluish- 
green, hoary, or sea-green appearance. 
` GLAUCIUM (from glaukos, greyish-green; referring 
to the hue of the leaves). Horned Poppy. ORD. Papa- 
geracew. A genus comprising five or six species of hardy, 
ornamental, glaucous, annual or biennial herbs, chiefly con- 
fined to the Mediterranean region, one being a native of 
Britain. Flowers yellow or crimson, solitary. Leaves 
lobed or dissected. Glauciums are of easy culture in 
any good garden soil. They may be propagated by seeds, 
sown in April or May, in the open ground. The seed- 
lings, when large enough to handle, should be transferred 
to their flowering quarters. 
G. corniculatum (horned). A synonym of G. phaniceum. 
yellow).* jl. bright yellow, large. June to A t. 
G. Sarena ift. a" L, — ones seed A. pes. 
atifid, hairy. A. lft. to 2ft. Europe (Britain), North Africa, and 
——— Whole plant glaucous. SYN. G. luteum. (Sy. En. B. 
66.) 
G. Iuteum (yellow). A synonym of G. flavum. 
