Lewisia 



Libocedrus 



quickly indicates the higher end of the instrument 

 by rising towards it. " Borning rods " are made 

 like T squares, 4' in height, and are used in threes. 

 In use they are held a few yards apart, one having 

 its base on a point to which- the surrounding area 

 .has to be levelled; 'the other two are raised or 

 lowered until, viewed from the first one, all the 

 three horizontal cross pieces have their upper 

 edges perfectly in line. The rod to use in the 

 centre should be of a different colour from the other 

 two. The centre rod is. the one to raise or lower 

 .to get the level between two outside points. Other 

 levelling instruments are made by a combination 

 of the straightedge, a right-angled triangle, and 

 a plummet. There is also the theodolite,; an ex- 

 pensive combination of spirit levels, graduated 

 circles, and telescope, used for extensive engineer- 

 ing operations. 



LEWISIA. 



Beautiful little plants (ord. Portulaceae) for 

 rockwork, and growing in a soil composed of loam, 

 leaf mould, and sand, with a little brick rubbish, 

 in a sunny position with thorough drainage. Prop- 

 agation, by seeds, sown under glass in spring, or 

 by division at the same time. Kediviva has been 

 known to revive in a herbarium after being dried 

 as a specimen. The Lewisias should be well 

 supplied with water when growing. Tweedyi 

 will be best in a frame in winter. 



Principal Species : 

 rediviva, 4",sum.,ro. (see Aug., pk. Ivs., bronze re- 



p. 11). verse. 



Tweedyi, 4" to 6", Je. to 



LEYCESTERIA. 



Description. A handsome , hardy shrub (ord. 

 Capri foliacese), with bunches of white arid purple 

 flowers on rather pendent branches. These are 

 followed by small fruits, which are said to be 

 appreciated by game, and the shrub is sometimes 

 recommended as a covert plant. It is very hand- 

 some in the garden or shrubbery, where it will 

 grow in either a sunny or shady place. 



Propagation. By seeds, sown in the open or in 

 a frame in spring ; by cuttings of the old wood 

 under a hand-light in autumn ; also by cuttings 

 of young shoots under a bell-glass in spring. 



Soil. Common soil. 



Only Cultivated Species r 

 formosa, 6' to 8', sum., - variegata, a pretty 



wh., pur. (syn. nepal- form. 



ense). 



LEYSSERA. 



Greenhouse evergreens (ord. Composite). Prop- 

 agation is by cuttings of half-ripe wood in very 

 sandy peat. Soil, loam and peat, both fibrous, 

 with coarse sand. 



Principal Species : 



capillifolia,'8", Je.,yel. guaphaloides,2', Aug., or. 

 yel. 



LHOTSKYA. 



Greenhouse evergreens (urd. Myrtaceje). Prop- 

 agation is by cuttings in very sandy soil beneath a 

 bell-glass. A compost of loam, peat, and sand 

 suits. 



Principal Species : 

 acutifolia, 1J', Je., yel. ericoides, 3' to 20', Je., 



wh. ()/. hirta). 

 violacea, IV, Je., vio. 



LIABUM. 



Herbaceous or shrubby plants (ord. Composita;), 

 scarcely ever met with, and hardly, if at all, 

 procurable from trade sources. The herbaceous 

 species are propagated by division in spring ; the 

 shrubs by cuttings of the young shoots under a 

 bell-glass in spring in bottom heat. Soil, loam, 

 leaf mould, and a little peat and sharp sand. 



Principal Species : 



Browuei, yel., st. Alpine, yel. (/. Para- 



uniflorum, 6", hlf-hdy. iiephelius uuinorus). 



LIATRIS. (BLAZING STAB. BUTTON SSAKE- 

 ROOT.) 



Description. Handsome and effective border 

 plants (ord. Compositse), with long spikes of 

 flowers, which open from the summit of the spike 

 downwards in succession. The greater number are 

 hardy in suitable soil. 



Propagation. By division of the roots in spring, 

 or by seeds sown under glass in pots or in a frame 

 at that season. 



Soil. Liatrises should have a light, sandy soil, 

 but ought not to suffer from drought at the growing 

 period, or the size of the spikes will be much 

 reduced. Pure sand is recommended by some 

 growers, but it must not be dry. 



Principal Species : 

 pycnostachya, 4', Aug., scariosa, 3', Jy., Aug., 



pur. One of the finest, pur. A distinct species. 



'Ut often short lived. spicata, 2' to 6', Aug., 



r 



Da 



Other Species : 



acidota, 2A', Aug., pur. 

 cyliudracea, 1' to 3', Aug., 



pur. (I/H. grarninifolia, 



of JfilMfiiow). 

 elegaus, 4', Jy., pur. 



pur. Very pretty. 

 montana, 2 . 



graminifolia, 3', Aug., 

 pur. (not of WiUdfilow}. 

 dubia. 



punctata, 3', Aug., pur. 

 squarrosa, 2', Aug., pur. 



LIBERTIA. 



Description. Very ornamental hardy or half- 

 hardy plants (ord. Iridese), which are prized 

 because of their pretty, Iris-like, narrow leaves 

 and their pleasing white or bluish flowers. In 

 some places formosa, grandiflora, and ixioides are 

 not quite hardy, and should have a little pro- 

 tection in winter. 



Propagation. By division in spring, or by seeds 

 sown at that season, and the seedlings wintered in 

 a frame or cool house. 



Soil. Light, dry soil in a sunny position. 



Principal Species : 



formosa, li', My., wh. ixioides, 3', Je., wh. 



grandiflora, 3', Je., wh. paniculata, 1J', hlf-hdy., 



My., wh. 

 Other Species : 

 coerulescens, 2', hlf-hdy., pulchella, 1', Ap., hlf- 



pale bl. hdy., wh. 



elegaus, H', Ap. , wh. tricocca, 1', hlf-hdy., wh. 



tricolor, 1', hlf-hdy., wh. 



LIBOCEDRUS. 



Description. Ornamental evergreen trees (ord. 

 Conifera), of which about six species are in cultiva- 

 tion. The majority require the protection of a cold 

 greenhouse in winter, except in very favoured local- 

 ities. In general appearance they closely resemble 

 the Chinese Arbor-Vitas (Thuya orientalis), differing 

 principally from that plant in having unequally 

 winged seeds, valvate scales to the cones, and by 

 producing only one seed at the base of each scale. 



