sua 



SWE 



SUGAE CANE. Sa'ccharum 



SUMACH. Rhus. 



SUN-DEW. Dro'sera. 



SUNFLOWER. JETelia'nthus. 



H. a'nnuus, Annual Sunflower, is now 

 much cultivated for its oil, and as a food 

 for cattle and poultry. 



The earlier the seed can be got into the 

 ground the better, say the beginning of 

 April, as the crop will be ready to harvest 

 the latter part of August, which will be 

 of the greatest importance to growers. 

 The necessary quantity of seed required 

 for an acre depends upon the conditions 

 of the soil, and varies from four pounds 

 to five pounds; but, of course, it is advisa- 

 ble to sow a little more than is actually 

 wanted, to provide against accidents. The 

 seed should be drilled into the ground, 

 and the distance from row to row eighteen 

 inches ; the plants to be thinned out to 

 thirty inches from plant to plant, and the 

 number of plants at this distance would 

 be about 14,500 per acre ; at eighteen 

 inches from plant to plant, 25,000 per 

 acre ; and at twelve inches from plant to 

 plant, 32,000. The produce of this kind 

 of grain, like that of most others, varies 

 considerably, according to the state of the 

 soil, climate, and the cultivation that is 

 employed; but the average quantity of 

 seed is about fifty bushels per acre. This 

 will produce fifty gallons of oil, and of 

 oilcake, 1,500 pounds. The stalks, when 

 burnt for alkali, give ten hundredweight 

 of potash. 



SUNFLOWER. Helianihus, 



SUN-FRUIT. Helioca'rpu*. 



SUN-ROSE. Helia' nthemum. 



SURFACE GRUBS, or CATERPILLARS, are 

 the larvae of several species of Noctua, or 

 Night Moths. Gardeners thus name 

 them because they attack the roots of the 

 turnip, mangold wurtzel, &c., just at the 

 surface of the soil. 



SUTHERLA'NDIA. (Named after James 

 Sutherland, author of a botanical cata- 

 logue. Nat. ord., Leguminous Plants [Fa- 

 bacese] . Linn., Yi-Diadelphia^-Decandria. 

 Allied to Clianthus.) 



Half-hardy, scarlet-flowered evergreens, from 

 the Cape of Good Hope. Seeds in spring, or cut- 

 tings of young shoots in May, under a hand-light ; 

 requires protection in hard winters. 

 S.frute'scens (shrubby). 3. June. 1683. 



cann'scens (hoary) June. 1816. 



microphy'lla (small-flowered). 3. June. 1816. 



SUWARROW-NUT. Caryo'car. 

 SWAINSO'NIA. (Named after lunar 

 Swuinson, F.R.S. Nat. ord., Lyuminuus 



Plants [Fabacese]. Linn., 17-Diadelphia 

 L-Decandria. Allied to Colutea.) 



Greenhouse, New Holland, evergreen shrubs. 

 Seeds in a slight hotbed in April, after being 

 >oaked in warm water, or they may be sown when 

 ripe ; cuttings of young shoots in sand, under a 

 nell-glass, and kept in a cool frame or pit any 

 time in summei ; sandy, fibryloam, and a third of 

 oeat. Winter temp., 38 to 45. They would no 

 doubt succeed against a protected conservative 

 wall. 



6'. astragalifcfli a (astragalus-leaved). White. July. 

 1802. 



coronilleefo' Ka (coronilla-leaved). 2. Purple. 



July. J802. 



galegifo'lia (galega-leaved). 2. Red. July. 1800. 

 albiflo'ra (white-flowered). 2. White. July. 



1826. 



Greya'na (Capt. Grey's). 2. Pink. July. 1844. 



Lesser ti<efo' Ha (Lessertia-leaved). 2. Purple. 



July. 1824. 



SWALLOWWORT. Ascle'pias. 



S WAMMERDA'MIA. (Named af ter J.Swam- 

 merdam, the naturalist. Nat. ord., Compo- 

 sites [Asteracese]. Linn., 19-Syngenesia 

 "l-Superfiua. Allied to Podolepis.) 



Half-hardy evergreen. For culture, see PODO- 

 LK'PIS. 



S. antenna' ria (antennaria-like). 3. White. 

 January. Van Diernen's Land. 



SWAMP LOCUST-TREE. Gledi'tschia mo- 

 nospe'i-ma. 



SWAMP POST. Que'rcus lyra'ta. 



SWAMP SASSAFRAS or LAUREL. Magno'lia 

 qtuu'ca. 



SWA'RTZIA. (Named after Olof Sivartz, 

 a German botanist. Nat. ord., Legumi- 

 nous Plants [Fabacese]. Linn., 11-Zte- 

 candria \-Monogynia. Allied to Cassia.) 

 Stove evergreen shrub. Cuttings of half-ripened 

 shoots in sand, under a bell-glass, and in bottom- 

 heat, in the beginning of summer ; sandy, fibry 

 loam and peat in equal proportions. Winter 

 temp., 50 ; summer, 60 to 85. 

 S. grandiflo'ra (large-flowered). 6. Yellow. Tri- 

 nidad. 1821. 



SWEEPING. (See BESOM.) It is best done 

 in calm weather, and early, whilst the 

 dew is strong enough to allay the dust, 

 and keep the light refuse from blowing 

 about. 



SWEET BAY. Lau'rus no'bifis. 



SWEET BRIAR. Ro'sa rubiyino'sa. 



SWEET CALABASH.Pflssi^w'rawa^/oVwiw* 



SWEET CICELY. See CHERVIL. 



SWEET FLAG. A'corus. 



SWEET GALE. My'rica ga'le. 



SWEET GUM. Liquida'mbnr styracVflua. 



SWEE'TIA. These stove evergreen twin- 

 ers are now united to Galactia. They are 

 all pur; ile-flovvered. 



G.filifo'rmis (thread-shaped). 3. July. S. Amer. 

 U20. 



