438 



THE DICTIONARY OF GARDENING, 



Siphocampylos continued. 



S. crenatifolius (crenate-leaved). fl. scarlet, tipped with yellow, 

 axillary, solitary. Summer. I. 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. fulgcns (brilliant). A synonym of S. Humboldtianus. 



S. giganteus (gigantic), fl. 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. I. 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. glandulosus (glandular).* fl. 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. I. rather long-stalked, cordate, wrinkled, doubly toothed. 

 A. 3ft. Bogota, 1845. A softly pubescent, stove plant. (B. M. 4331 ; 



S. hamatus (hooked), fl. 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. I. alternate, 

 petiolate, oblong-ovate or slightly cordate, acuminate, attenuated 

 towards the base, irregularly toothed, the nerves prominent 

 beneath, h. 6ft. Brazfl, 1849. A tomentose-pubescent, green- 

 house plant. 



S. Humboldtianus (Huniboldt's).* /. scarlet ; calyx lobes ovate- 

 triangular, shorter than the tube ; corolla tube straight, the 

 segments ovate-lanceolate, upper ones longer ; pedicels axillary, 

 compressed, equalling the leaves. Summer. I. petiolate, ovate 

 or lanceolate, acute at both ends, argutely denticulate, gla- 

 brescent above. Branches angular, densely pubescent, h. 3ft. 

 Peru, 1867. Stove. (B. M. 5631.) SYN. S. fulgent (F. M. 313). 



S. lantanilolius (Lantana-leaved). fl. purplish, eight to ten 

 together ; calyx velvety ; corolla narrow, incurved, with acumi- 

 nate lobes ; pedicels corymbose. July. I. ovate, acute, liin. 

 long, obtuse at base, sometimes slightly cordate, shortly petiolate, 

 glabrous and wrinkled above, fuscous-tomentose beneath, the 

 margins denticulate. Branches straight, simple, somewhat woody, 

 ) shrub. 



terete, h. 3ft. Caraccas, 1841. Stove i 



ether with the 

 under name 



S. L glabriusculus (slightly glabrous). L, togeth 

 pedicels and calyx, scarcely pubescent. (B. M. 4105, 

 of S. lantanifolius.) 



S. longepedunculatus (long-pedunculate), fl. purplish, on 

 axillary pedicels longer than the leaves ; calyx segments acute, 

 much shorter than the corolla.; corolla nearly 2in. long, narrow, 

 sub-arcuate. January. I. alternate, ovate, acuminate, Sin. 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). 



S. macropodus (large-footed), fl. bluish-red; calyx hairy; 

 corolla four times as long as the calyx, the tube ventricose above, 

 the inferior lobes reflexed ; pedicels almost' equalling the leaves, 

 puberulous. June. I. ovate, acute, Sin. long, shortly petiolate, 

 crenate, slightly hairy above, pubescent beneath. Stem slightly 

 branched, hairy, 2ft. to 3ft. high. Minas Geraes. Stove. SYN. 

 S. canus. 



S. manettiaaflorus (Manettia-flowered).* fl. red and yellow, as 

 long as the leaves ; calyx segments subulate, serrated ; corolla 

 laterally compressed, the segments nearly equal, erecto-patent ; 

 peduncles solitary, axillary, one-flowered, bibracteate, three 

 or four times longer than the leaves. April. I. very shortly 

 petiolate, oblong-ovate, obscurely serrated, reticulated, shining 

 above, h. 1ft. New Grenada, 1848. An erect, dwarf, stove sub- 

 shrub. (B. M. 4403; P. M. B. xv. 267.) SYN. S. nitidus (of 

 gardens). 



S. microstoma (small-mouthed). /. scarlet, shortly peduncu- 

 late, in terminal umbels ; calyx segments obtuse, spreading ; 

 corolla pubescent, swollen above, laterally compressed, the seg- 

 ments small, linear, obtuse, connivent, pilose. September. 

 I. alternate, shortly petiolate, ovate, acute, 2m. long, glandular- 

 serrate, glabrous. Stem 2ft to 3ft. high, glabrous ; branches 

 terete. New Grenada, 1844. An erect, stove sub-shrub. (B. M. 

 4286; F. d. S. 444; L?& P. F. G. ii. 44.) 



S. nitidus (shining). A garden synonym of S. manetticeflorus. 



S. Orblgnianus (d'Orbigny's). fl. yellow and red, numerous in 

 the upper axils ; calyx lobes thrice as long as the tube ; corolla 

 much longer than the calyx, with linear lobes ; pedicels half as 

 long as the leaves. July. I. ternate, ovate, acuminate, shortly 

 petiolate, unequally and acutely toothed, 3in. to 4m. long, 

 puberulous beneath. Branches erect, terete, h. 2ft. or more. 

 Bolivia, 1849. Stove. (B. M. 4713 ; F. d. S. 544 ; L. & P. F. G. i. 

 p. iii. ; L. J. F. iv. 425.) 



S. penduliflorus (pendulous-flowered). /. scarlet, nodding; 

 calyx segments two or three times as long as the tube ; corolla 

 segments linear, half exceeding the tube ; pedicels lin. long ; 

 racemes terminal, solitary, long, loose-flowered. June. I. 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). /. scarlet, scattered, on pedicels two to 

 four lines long; corolla tube nearly lin. long, the segments 

 falcate, sub-equal, reflexed. July. I. petiolate, reflexed, oblong, 

 obtuse, lin. to Ijm. long, somewhat acute at base, slightly fleshy, 

 the margins quite entire and revolute. Stem climbing. Peru, 



S. surinamensis (Surinam). A synonym of Centropof/on 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. 

 I. alternate, oblong-lanceolate, acuminate, narrowed into the 

 petiole, above silky, and of a pleasing green, very shortly pu- 

 berulous beneath. Stem branched, h. 3ft. Brazil, 1832. Green- 

 house. (F. d. S. 619; L. <fc P. F. G. ii. p. 135, under name of 

 S. amcenus.) 



SIPHON ANDRA. A synonym of Chiococca (which 

 see). 



SIFHONANTHA. A synonym of Clerodendron 



(which see). 



SIPHONIA. A synonym of Hevea (which see). 



SIFHONIOFSZS. A synonym of Cola (which 

 see). 



SIFHONOFHORA. A genus of Aphides or Green- 

 flies, distinguished by long, slender honey-tubes or 

 siphons, borne on the hinder part of the body (see 



FIG. 489. SIPHONOPHORA ROS.E a, Line showing the 

 natural length. 



Fig. 489). It includes a very large number of species, 

 several of them injurious to cultivated plants, e.g., 

 Hoses. 



SIREX. A genus of Sawflies, the larvro of which 

 feed in the wood of Conifers, in which they bore 

 tunnels, often about iin. wide. They thus injure the 

 trees, and ruin the wood for carpentry. Only two species 

 are known as British ; these are 8. 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 antennae are also well developed. 

 The length, without the ovipositor, varies from about in. 

 to Hin., 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 



