SHU 



736 



SIL 



SHUTTING-UP is closing the lights of 

 frames, pits, greenhouses, and stoves, 

 which have heen opened for the admis- 

 sion of air. 



SIBBA'LDIA. (Named after Dr. Sibbald, 

 of Edinburgh. Nat. ord., Eoseworts 

 [Rosacese]. Linn., 5-Pentandria 5-Pen- 

 tayynia. Allied to Potentilla.) 



Seeds, but chiefly by division of the plant in 

 spring ; fibry, sandy loam, and fibry peat. They 

 are best kept as little alpines, in pots, protected 

 from frost and wet in winter, and shaded from the 

 midday sun in summer. 



S. ere 1 eta (upright). 1. Pink. July. Siberia. 1806- 

 Herbaceous. 



parvijfWra (small-flowered). . Yellow. July. 



Cappadocia. Herbaceous. 



procu'mbens (lying-down). . Yellow. July. 



Britain. Evergreen trailer. 



SIBERIAN CRAB. Py'rus prunifo'lia. 



SIBERIAN PEA-TREE. Caraga'na. 



SIBTHO'RPIA. (Named after Dr. Sib- 

 thorp, of Oxford. Nat. ord., Figworts 

 [Scrophulariacese] . Linn., Ik-Didynamia 

 2-Angiospermia.) 



Yellow-flowered trailers. Seeds and divisions of 

 the plant in spring; moist, sandy, shady peat- 

 border. Prostra'ta requires the protection of a 

 greenhouse in winter. 

 S. Europce'a (European). $. July. England. 



2)roslra'ta (trailing). %. June. Madeira. 1771- 



SI'DA. A name adopted from Theo- 

 pbrastus for an extensive group of Mal- 

 lowworts, of which the true generic name 

 is Crista'ria, and the best species are re- 

 moved to Abutilon. 



SIDERI'TIS. Ironwort. (From sideros, 

 iron ; supposed power of healing wounds 

 by iron. Nat. ord., Lipworts [Lamiacese]. 

 Linn., 1^-Didynamia 2-Angiospermia. Al- 

 lied to Marubium.) 



Yellow-flowered, except where otherwise spe- 

 cified. Seeds ; cuttings under a hand-light in 

 summer ; division of the plant in spring ; dry, 

 sandy, or chalky soil ; well fitted for knolls and 

 banks. 



HARDY HERBACEOUS. 

 S. Roma'na (Roman). I.July. Italy. 1740. Annual. 



serra'ta (save -leaved). 1. August. Spain. 1818. 



spino'sa (spiny). l. August. Spain. 



HARDY EVERGREENS. 

 S. scordioi'des (scordium-like). 1. September. 



France. 1597. 



alpi'na (alpine). 1. July. Pyrenees. 1827. 



angustifo'lia (narrow-leaved). 1. July. 



Pyrenees. 1597. 



elonga'ia (lengthened). August. Spain. 1822. 



Half-hardy. 



Tnu'rica (Taurian), l. July. Tauria. 1822. 



HALF-HARDY EVERGREENS. 

 S. angustifo'lia (narrow-leaved). 1. July. Spain. 

 1820. 



chamcedrifo'lia (germander-leaved). 1. July. 



Spain. 1816. 



ilicifo'lia (holly-leaved). 1J, July, Levant. 



.S. inca'na (hoary). 1$. July. Spain. 1754, 



leucatntha (white-flowered.). 1. White. July, 



Spain. 1823. 



perfo'liata (leaf-stem-pierced), 2. September. 



Levant. 1731. 



Syri'aca (Syrian). l. July. Levant. 1597. 



SIDERODE'NDRON. Iron-tree. (From 

 sieJeros, iron, and dendron, a tree ; from 

 hardness of wood. Nat. ord., Ginchonads 

 [Cinchouacese]. Linn., ^-Tetrandria 1- 

 Monoyynia. Alliance near to Ixora.) 



Stove evergreen tree. Cuttings of ripe shoots 

 in sand, under a bell-glass, and in a moist heat .; 

 sandy, fibry loam, fibry peat, and leaf-mould. 

 Winter temp., 50 to 60 ; summer, 60 to 80. 

 S. triflo'rum (three-flowered). 20. Pink. W.Ind. 

 1793. 



SIEGESBE'CKIA. (Named after J. G. 

 Siegesbeck, a German botanist. Nat. ord., 

 Composites [Asteracese]. Linn., IQ-Syn- 



Hardy, yellow-flowered annuals. Seeds in a 

 hotbed, in April ; seedlings pricked off, and 

 finally turned out into the flower-garden in the 

 beginning of June ; rich, light, sandy soil. 

 S. cordifu'lia (heart-leaved). 20. August. Mexico. 

 1826. 



Ibe'rica (Iberian). l.White.August.Iberia.1818. 



orientu'lis (eastern). 2. September. India. 1730. 



triangula'ris (triangular). 2. August. Mexico. 



1825. 



SIEVE'RSIA. (Named after M . Sievers, 

 a Eussian botanist. Nat. ord., Eoseworts 

 [Kosacese]. Linn., 12-Icosandria 3-Poly- 

 gynia. Allied to Geum.) 



Hardy, yellow-flowered, herbaceous perennials. 

 Seeds, and division of the plant in spring; light, 

 sandy soil. 



S. anemonoi'des (anemone-like). . July. Kamt- 

 schatka. 1820. 



Atla'ntica (Atlantic). May. SouthEurope. 1810. 

 , glacia'lis (icy). . July. Siberia. 181Q. 



monta'na (mountain). . July. Austria. 1597- 



Pe'ckii( Peck's). . July. N. Amer. 1826. 



re'ptans (creeping). 4. July- Switzerland. 1597- 



ro'sea (rosy). . May. Rocky Mountains. 18-J7. 



triflo'ra (three-flowered). 4. July. Louisiana. 



1826. 



SILE'NE. Catchfly. (From sialon, sa- 

 liva ; from the gummy secretion on the 

 leaves of some, which entraps small flies. 

 Nat. ord., Cloveworts [CaryophyllaceEe]. 

 Linn., 10-Decandria 3-Trigynia.) 



All freely by seeds. Annuals, in the opan 

 garden, in April, and many, if sown in Septem- 

 ber, will bloom very early; the low-growing 

 ones are very suitable for knolls and rock- works. 

 Herbaceous ones also by division, and by cut- 

 tings of the young shoots in sand, under a hand- 

 light, in summer; shrubby ones by similar 

 means; rich, sandy loam. 



GREENHOUSE BIENNIALS. 

 S. crassifo'lia (thick-leaved). 1. Brown. July. 



Cape of Good Hope. 1774. 



gigante'a (gigantic). 3. White. June. Africa. 1/38. 

 _ orna'ta (ornamental). 2. Purple. July, Cape 



of Good Hope. 1775. 



