Roylea 



293 ) 



Bubus 



pallens, 4' to 12', wh. 

 pu' 



). 



(*.'/. pubescens of Will- 

 denow). 



Principal Species : 

 glabra, 4', Sep., wh. 

 Eirsuta, 7', Jy., pur. 

 luc'idii, 3' to 5', My., wh. 



villosa, 4' to 0', wh. 



ROYLEA. 



Elegans, o' to 3', July, white, flushed rose, the 

 only species, is an evergreen greenhouse shrub 

 ((ml. Labiatas). Propagation, by cuttings of young 

 slmots getting firm at the base, in sand, under a 

 bell-glass. Soil, fibrous loam, with a third of leaf 

 mould and sand. 



RUBIA. 



Hardy herbs, or sometimes evergreen and sub- 

 shrubby at the base (ard. Rubiaceie), with small, 



ils fruit, as are several of the species termed 

 Brambles or Blackberries. Some are highly orna- 

 mental, and valued either for their foliage, fruit, 

 flowers, or coloured stems, in shrubberies, on 

 lawns, or in the wild garden. 



Propagation. Seeds are sown to obtain new 

 varieties. By cuttings for a few, but hardy species 

 chiefly by layering. The tips of most of the 

 Brambles root naturally when they come into con- 

 tact with the soil, so that pegging them down 



| would facilitate the process. Herbaceous species 

 may be divided. 

 Soil. Any well-drained garden soil, even if poor 



j in character, but a deep, rich loam is the best, 



I especially for the fruiting species (gee also KASP- 



! BEBRY and BLACKBERRY). 



Photo: Cassell & Company, L1<1. 



BIFLOKUS (see p. 294). 



yellowish or white flowers, of little garden value. 

 Propagation, by division of the herbaceous species, 

 and by cuttings of the evergreens under a hand- 

 light in summer. Any good garden soil for the 

 herbs; peat and sand for the evergreens. A 

 red dye known as madder is obtained from 

 Tinctorum. 



Principal Species : 



cordifolia, 3' to 4', .Tv., 

 wh. 



peregrina, 1', sum., yel. 

 Tinctorum, 4', Jy. , yel. 



RUBUS. (RASPBERRY AND 

 BRAMBLE.) 



Description. Hardy, half-hardy, and cool or 

 warm greenhouse shrubs (ord. Kosacese). The 

 Kaspberry (Ida:iis) is universally esteemed for 



Other Cultural Points. The stems of Brambles 

 are generally more durable than those of the Hasp- 

 berry, but when losing vigour they may be cut out 

 to make room for younger ones. Herbaceous species, 

 including arcticus and ChamiEmorus, do well in 

 moist peat beds on the rockery. Odoratus is some- 

 times planted in the sub-tropical garden for the 

 sake of its handsome, palmately lobed leaves, 

 which are increased in size by keeping the old 

 stems well thinned out, or by hard pruning back 

 annually in early spring, but it is not commonly 

 grown. The greenhouse species do best when 

 planted out in prepared beds, and trained to 

 rafters or pillars. All are hardy, except where 

 otherwise stated. 



Hitlentia (see Elteodendron). . 



