THE DICTIONARY 
OF GARDENING, 
438 
Siphocampylos—continued. 
S. crenatifolius (crenate-leaved). /l. scarlet, tipped with yellow, 
axillary, solitary. Summer. l. oblong-elliptic, irregularly crenate, 
5in. to 6in. long. h. 3ft. Brazil, previous to 1870. A showy, 
warm greenhouse shrub. (Ref. B. 227.) 
S. fimbriatus (fringed). A synonym of S. longepedunculatus. 
S. fulgens (brilliant). A synonym of S. Humboldtianus, 
5. teus (gigantic). jl. reddish-yellow; corolla falcate, 
velvety, the tube equalling the calyx lobes, the lobes lanceo- 
late-ovate ; pedicels bibracteolate at base, often longer than the 
leaves. July. J. lanceolate, cuspidate-acuminate, 6in. to 9in. long, 
narrowed at base, scarcely petiolate, wrinkled, crenate-toothed, 
glabrous above, pilose beneath. Stem 14ft. or more in height ; 
branches pubescent. New Grenada, Stove. 
S. dulosus (glandular).* jl. rose-coloured, nodding ; calyx 
lobes spreading, with reflexed margins, deeply glandular-serrated ; 
corolla tube curved, compressed, clavate, the limb segments 
nearly equal, erecto-patent; peduncles axillary, solitary, shorter 
than the leaves, one-flowered, bibracteate below the middle. 
July. l. rather long-stalked, cordate, wrinkled, doubly toothed. 
h. 3ft. Bogota, 1845, A softly pubescent, stove plant. (B. M. 4331 ; 
F. d. S. 401.) 
A 
S. hamatus (hooked). violet, in short, dense, terminal 
racemes; calyx lobes hooked, spreading; corolla tube curved, 
laterally angular-compressed, the segments nearly equal, elon- 
gated ; primary bracts hooked at apex. June. l. alternate, 
cna oblong-ovate or slightly cordate, acuminate, attenuated 
wards the base, rhe ee toothed, the nerves prominent 
beneath. h. 6ft. Brazil, 1849. A tomentose-pubescent, green- 
house plant. 
S. Humboldtianus (Humboldt’s).* fl. scarlet ; calyx lobes ovate- 
triangular, shorter than the tube; corolla tube straight, the 
segments ovate-lanceolate, upper ones longer ; pedicels axillary, 
com d, equalling the leaves. Summer. J. petiolate, ovate 
ceolate, acute at both ends, argutely denticulate, gl: - 
brescent above. Branches angular, densely pubescent, h. ft. 
Peru, 1867. Stove. (B. M. 5631.) Syn. S. fulgens (F. M. $13). 
S. us (Lantana-leaved). fi. purplish, eight to ten 
er ; calyx velvety ; corolla narrow, incurved, with acumi- 
lobes; pedicels corymbose. July. l. ovate, acute, lżin. 
long, obtuse at base, sometimes slightly cordate, shortly petiolate, 
and wrinkled above, fuscous-tomentose beneath, the 
margins denticulate. Branches straight, on somewhat woody, 
terete. h. 3ft. Caraccas, 1841. Stove shrub. 
Gk briusculus (slightly glabrous). l., ether with the 
ls and calyx, scarcely pubescent. (B. M. 4105, under name 
of S. lantanifolius.) . 
S. | tus (long-pedunculate). 
axillary pedicels vty ind than the leaves ; calyx segments acute, 
much shorter than the corolla; corolla nearly 2in. long, narrow, 
sub-arcuate. January. l. alternate, ovate, acuminate, Jin. to 
4in. long, membranous, cordate, petiolate, argutely toothed. 
Stem terete, 3ft. high. Rio de Janeiro, 1841. Stove. (B. M. 
4015.) SYN. S. fimbriatus (R. G. 600). 
Macropodus (large-footed), fl. bluish-red; calyx hairy; 
corolla four times as long as the calyx, the tube ventricose above, 
the inferior lobes refiexed ; pedicels almost equalling the leaves, 
puberulous. June. l. ovate, acute, din. long, shortly petiolate, 
crenate, slightly hairy above, pubescent beneath. Stem slightly 
branched, hairy, 2ft: to 3ft. high. Minas Geraës. Stove. SYN. 
fl. purplish, on 
canus. 
manettiæfiorus (Manettia-flowered).* fl. red and yellow, as 
; ue M Pe practi he aes moue Parae corolla 
m segments nearly equal, erecto-patent ; 
peduncles soli i lary, one-flowered, Pii rieteate three 
or four times longer than the leaves. April. J. very shortly 
petiolate, oblong-ovate, obscurely serrated, reticulated, shining 
above. A. lft. New G 1848. An erect, dwarf, stove sub- 
shrub. (B. M. 4403; P. M. B. xv. 267.) Syn. S. nitidus (of 
gardens). 
ti 
4286 ; F. d. S. 444; L. 
nitidus (shining). A garden synonym of S. manettiæflorus. 
i (@Orbigny’s). fl. yellow and red, numerous i 
the upper axils ; calyx lobes thrice as long as the tube; scree 
much longer than the calyx, with linear lobes ; pedicels half as 
long as the leaves. July. Z. ternate, ovate, acuminate, shortly 
petiolate, unequally and acutely toothed, din. to 4in. long, 
xe ager beneath. Branches erect, terete. A. 2ft. or more. 
livia, 1849. Stove. (B. M. 4713; F.d.S.544; L. & P. F. G. i. 
p. iii. ; L. J. F. iv. 425.) 
S. ulifiorus (pendulous-flowered). fl. scarlet, nodding ; 
yx segments two or three times as long as the tube ; corol 
segments linear, half exceeding the tube; pedicels lin. long; 
racemes terminal, solitary, long, loose-flowered. June. 1. opposite, 
rather long-stalked, ovate-oblong, slightly acute, remotely serru- 
Siphocampylos—continued. 
lated, rather thick. h. 2ft. Caraccas, 1847. A highly glabrous, 
stove, climbing shrub. (F. d. S. 763.) . 
S. scandens (climbing). jl. scarlet, scattered, on pedicels two to 
four lines long; corolla tube nearly lin. long, the segments 
falcate, sub-equal, reflexed. July. l. petiolate, reflexed, oblong, 
obtuse, lin. to 1fin. long, somewhat acute at base, slightly fleshy, 
the margins ie entire and revolute. Stem climbing. Peru, 
1847. Stove shrub. 
S. surinamensis (Surinam). A synonym of Centropogon surinam- 
ensis. 
S. villosulus (slightly hairy). /. reddish-orange ; corolla small, 
nearly straight, the segments narrow and acute ; pedicels longer 
than the calyx; racemes terminal, many-flowered. June. 
l. alternate, oblong-lanceolate, acuminate, narrowed into the 
tiole, above silky, and of a pleasing green, very shortly pu- 
hail beneath. Stem branched. Ah. 3ft. Brazil,1832. Green- 
house. (F. d. S. 619; L. & P. F. G. ii, p. 135, under name of 
S. ameoenus.) 
SIPHONANDRA. A synonym of Chiococea (which 
see). 
SIPHONANTHA. A synonym of Clerodendron 
(which see). 
SIPHONIA. A synonym of Hevea (which see). 
SIPHONIOPSIS. A 
see). 
SIPHONOPHORA. A genus of Aphides or Green- 
flies, distinguished by long, slender honey-tubes or 
siphons, borne on the hinder part of the body (see 
synonym of Cola (which 
Fig. 489. SIPHONOPHORA ROSH z a, Line showing the 
engt 
Fig. 489). It includes a very large number of species, 
several of them injurious to cultivated plants, e.g., 
Roses. 
- SIREX. A gems of Sawflies, the larvæ of which 
feed in the wood of Conifers, in which they bore 
tunnels, often about tin. wide. They thus injure the 
trees, and ruin the wood for carpentry. Only two species 
are known as British; these are S. juvencus (the Steel- 
blue Sirex) and S. gigas (the Giant Sirex). They agree 
in general form. The body is nearly cylindrical. In the 
female, the last ring of the abdomen bears a strong 
spine, directed backwards; and from the lower surface 
of the abdomen arises a strong ovipositor, also pointed 
backwards, in which lies the “saw,” used for boring into 
tree-trunks. The ovipositor is about half as long as the 
body. The four wings are large, powerful, and trans- 
parent. The legs and antennæ are also well developed. 
The length, without the ovipositor, varies from about }in. 
to 1}in., but is usually over lin. The mode of life is 
as follows: The female bores with her saw into the 
bark of trees, preferring sickly ones if they are to be 
found, and deposits in each hole an egg, from which, 
after a time, a white, soft, cylindrical larva emerges. 
The larva tunnels in the wood of the tree. The duration 
of the larval stage is uncertain. Some believe that it is 
