sesamum 



331 ) 



Shades 



SESAMUM. 



Stove herbs (iirtl. Pedalineae), erect or prostrate 

 in habit, with white or pale violet flowers and very 

 oily seeds. They have little garden value, but 

 indioum, tin: Gingelly Oil Plant, is extensively 

 cultivated in the tropics for the oil (Gingelly Oil) 

 furnished by its seeds. Culture as for Martynia, 

 which ate. 



Principal Species : 



indicum, 1' to 2', Jy., st., wh., with red., pur., or 

 yel. markings (syits. luteum and orientalc). Gin- 

 yt-llv or Gingellie Oil Plant, Sesame, Oily Grain. 



SESBANIA. (Including AGATI, DAU- 

 BENTONIA, and GLOTTIDIUM.) 



A genus of greenhouse or stove shrubs or 

 herbs (vrd. Leguminosa}). Propagation, by cut- 

 tings of half-ripe shoots of the shrubs ; the 

 annuals by seeds sown in heat in spring. Soil, 

 loam, peat, and sand. 



Principal Species : 

 ii'gyptiaca, 4', Jy., st. ev. puuicea, 3', Jy., st. shr., 



shr., yel. Sesban. sc. (sijn. Daubentouia 



exasperate, 8' to 10', Jy., puuicea). 



st. ev. shr., yel. 



Other Species : 

 aculcata, 4', Jy., st. aim., st. bien., yel., blk. (xyn. 



yel. picta). 



grandiflara, 14' to 26', platycarpa, 7', Jy., grh. 



Jy., st., ro. or wh. ami., yel. (//. vesi- 



lougifbliii, 6", Je., st. shr., caria and Glottidium 



yel. rloridanum). 



macrocarpa, 3', Aug., Tripetii, 6', Je., grh. shr., 



grh. ami., yel , red, pur. sc., yel. (si/ii. Dauben- 



oceidentalis, 4' to 6', Jy., tonia Tripetii). 



SESELI. (.MKADOW SAXIFRAGE.) 



A genus of hardy biennial or perennial plants 

 (tint. Umbellifenu), of little garden value. Prop- 

 agation, by seeds sown in spring. Ordinary garden 

 soil. 



Principal Species : 

 dichotomum, 1' to ~i' , Je., gummiferum, 3' to 4', Jy., 



per., wh. bien., wh., pk. 



SESIA. (CLEAK-WING.) 



A genus of moths with nearly transparent wings. 

 The larvae live and pupate in the tunnels they bore 

 in the pith and wood of trees. Myopseformis 

 (Heel-belted Clear-wing), feeding on Pear wood ; 

 tipuUcformis (Currant Clear-wing), on Currants ; 

 formicjcfonnis (Red-tipped Clear-wing), onWillows ; 

 and apiformis (Hornet Clear-wing), on Poplars, 

 are the most injurious. Catching the moths, and 

 burning badly infested trees, are the only remedies. 



SESLERIA. 



Hardy Grasses (ord. Graminese), of no horticul- 

 tural value. Coerulea, 6" to 18", bluish, is a 

 native species. 



SESUVIUM. 



Stove or greenhouse, seaside, succulent herbs or 

 sub-shrubs (ord. Kicoidese). Few require mention 

 for garden purposes, but two have been used as 

 potherbs. Propagation, by cuttings in sand, after 

 being laid in the sun for a few hours to dry. 

 Sandy, dry soil. 



Principal Species : 



Portulacastrura, Jy., pros- revolutifolium, Jy., pros- 

 trate, grh., reddish (.,. trate, grh., red, wh. 

 Ai/oon canariense). (;/. Portiilacastruni 

 Sea Purslane, Samphire var. of BotoiHtoi tfogo- 

 of West Indies. :IM- 1701). 



SETARIA. 



A large genus of stove, greenhouse, or hardy 

 annual Grasses (ord. Grarninese), with flat 

 leaves and panicles of ovate spikelets. Propaga- 

 tion, by seeds, the stove and greenhouse ones 

 sown in heat under glass, the others in the open. 



Principal Species: 



gkiuca, 1', luly. ami. verticillata, hdy., natural. 



italica (*yn> Panicuni ised in fields. 



italicum of Linnajus). viridis, 1', hdy. Bottle 

 Grass, Great Foxtail 

 Grass. 



SETS. 



Tlie term applied principally to the tubers of 

 Potatoes, Dahlias, and such-like plants when about 

 to be planted, but mostly to "seed" Potatoes. 



SETTING. 



The pollination of the female blossom by the 

 application of pollen from the male one. In some 

 cases this is easily performed with plants under 

 glass by tapping the stems slightly so as to cause 

 the pollen to be dispersed ; but in others it is neces- 

 sary to brush the flowers lightly over with some 

 soft material, such as a hare's or rabbit's tail. It 

 will be found that some varieties of the plants 

 which require setting, such as Melons, Grapes, and 

 Tomatoes, are more difficult to fertilise than others. 

 They are what are called " shy setters." 



SEVERINIA. 



A useful evergreen, greenhouse shrub (ord. 

 Rutaceas), requiring ordinary greenhouse cultiva- 

 tion in loam, leaf soil, and a little sand. 



Only Species : 



buxifolia, 3', My., wh. (now Atalantia buxifolia). 



SEYMERIA (si/n. AFZELIA of Gmelin). 



Erect annual or perennial herbs (ord. Scrophu- 

 larinese), generally hardy. Those named are rather 

 pretty plants for the garden. Propagated like 

 other hardy annuals, which see. Light, rich soil. 



Principal Species : 



pectinata, 1', Jy., yel. tenuifolia, 2' to 4', Jy., 



yel. 



SHADES. 



Shades, or protections from sun, are of great 

 importance in growing plants under glass, in pro- 

 tecting seedlings and newly planted things outdoors, 

 and in shielding flowers intended for exhibition. 

 For plants under glass there is nothing so good as 

 a movable shade, composed of some light material, 

 and fixed to rollers so that it can be drawn up at 

 will. Various kinds of this, almost all good, can be 

 procured from dealers in horticultural requisites. 

 Lath or Bamboo blinds fixed on rollers are also 

 used by some. While a blind of some kind of 

 textile material is the best, -fixed shades painted or 

 brushed on the glass are in greater use, and are 

 very serviceable. Many good preparations are in 

 use, such as the well-known " Summer Cloud " in two 

 colours, green or grey, which should be applied out- 

 side the glass. A good shading, which can be mixed 

 in cold water, is Williams's " Eureka," but there are 

 many other good makes. A cheap one is made of 



/v \Vtill (*?e Valeriana). 



Seville Orange (see Citrus and Orange). 



Semerzmria (sec- Astra going'). 



Seymour in (< . 



Shaddock (tee- Citrus decumana). 



