Encyclopaedia of Gardening 285 



Senecio, Groundsel (sene-cio, from senex, an old man, in allusion 

 to the bare receptacle. Ord. Compositae). A large genus, with 

 which modern botanists have now united Cineraria, although they are 

 not supported by gardeners. The species are very variable in habit 

 and duration. Doronicum is a yellow hardy perennial, i ft. high. 

 Elegans (syn. Jacobaea elegans) is a half-hardy annual of which 

 several colours are available. Macroglossus, the Cape Ivy, is a 

 greenhouse evergreen climber, with pale yellow flowers in summer 

 (see the Botanical Magazine, t. 6149). Pulcher is a hardy perennial, 

 i ft. high, with purple flowers in autumn (Bot. Mag., t. 5959)- 

 Macrophyllus is a hardy perennial with yellow flowers and large 

 leaves, best in a sheltered place. They are not particular as to soil. 

 The annuals are raised from seed in spring, the perennials from 

 seed and by division. 



Sensitive Fern, Onoclea sensibilis. 



Sensitive Plant, Mimosa pudica. 



Sequoia, Wellingtonia (sequoi-a, a native name. Ord. Coniferae) . 

 Sequoia gigantea is the proper name, botanists tell us, of the magni- 

 ficent Californian tree known as Wellingtonia gigantea, which has 

 attained a height of over i oo yards and a girth of i o in America. It 

 does not attain to these extraordinary dimensions in Great Britain, 

 but in good loamy soil, and uncrowded, becomes a fine tree. There 

 are several varieties of it, such as argentea, silvery; aurea, yellow; 

 and pendula, drooping. The other species is sempervirens, the 

 Californian Redwood, which is of pyramidal habit; there are 

 several varieties of this also. The species are propagated by seed,, 

 the varieties by cuttings or grafting. 



Sericographis. See Jacobinia. 



Service Berry, Amelanchier. 



Service Tree, Pyrus Sorbus. 



Service Tree, Wild, Pyrus torminalis. 



Setting. To " set " fruits, such as Melons, is to transfer pollen> 

 from male to female flowers. 



Shaddock, Citrus decumana. 



Shading. See Greenhouse. 



Shallon, Gaultheria Shallon. 



Shallot (Allium ascalonicum. Ord. Liliaceae). See Kitchen 

 Garden. 



Shamrock. The yellow Suckling, Trifolium minus, and the white 

 Clover, Trifolium repens, both have supporters in the claims made 

 for them as being the true Irish Shamrock. Oxalis Acetosella is 

 also used, but less commonly. 



Shanking. See Fruit Grapes. 



Shears. A pair of short-handled shears should be kept in gardens 

 for clipping hedges, and a pair of long-handled, with short blades, 

 for trimming grass verges. They should be kept sharpened and 

 oiled. 



Shepherd's Purse. Capsella Bursa-pastoris, a troublesome weed,, 

 which must be kept under subjection in gardens. 



