284: 



PBAGTIGAL GUIDE TO GARDEN PLANTS 



LINUM 



L. Macrsi {L. Chamiasonis). — This 

 Chilian species is somewhat tender, but 

 will grow well outside from May to Octo- 

 ber. It is about 1 ft. high, with stiffish 

 lance-shaped pointed leaves, and orange 

 flowers. 



Culture dc. as for L. monogynum. 



L. monogynum. — A shrubby-stemnied 

 New Zealand plant 1 ft. high, with 

 lance-shaped leaves. Flowers in summer, 

 white, about IJ in. across. The variety 

 eanclddissimum is a superior plant to the 

 type, having larger and finer flowers and 

 a more compact habit. 



Culture and Propagation. — This 

 species is easily increased from seeds sown 

 as soon as ripe in cold frames. The 

 seedlings may be transplanted in mUd 

 weather in spring in the same way as 

 those of L. flavum. Cuttings of the more 

 or less ripened shoots may also be rooted 

 in cold frames as recommended for L. 

 a/rhoreumi. 



L. narbonense. — A somewhat glaucous 

 smooth plant, 2 ft. high, native of S. 

 Europe. Leaves lance-shaped linear, 

 very acute, rather stiff. Flowers from 

 May to July, sky-blue with violet veins, 

 sometimes white, in loose corymbs. 



Culture amd Propagation. — This is 

 one of the finest of the blue-flowered 

 Linums and will flourish in almost 

 any soil. It is quite happy even on dry, 

 poor soil, and not only flowers with great 

 freedom but produces seed freely. These 

 may be sown as soon as ripe in the same 

 way as recommended for those of L. 

 flavum above. 



L. nervosum. — A native of E. Europe, 

 12-18 in. high, with smooth lance-shaped 

 pointed leaves. Flowers in summer, 

 blue, large, with slightly notched or 

 pointed petals, crenate at the apex. 



Culture dc. as above for L. flavum. 



L. perenne. — A native evergreen species 

 12-18 in. high, with narrow linear-lanoe- 

 shaped acute leaves. Flowers in summer, 



1 in. across, usaially bright blue, but pink 

 or white in some varieties. 



Culture dc. as for L. flavum and L. 

 'narbonense. 



L. salsoloides. — A somewhat shrubby 

 evergreen, 1 ft. high, native of S.W. 

 Europe, with smooth, linear leaves. 

 Flowers in summer, J in. across, white 

 with a purple centre. 



Culture dc. as above for L. mono- 

 gynum,. 



L. sibiricum. — A smooth Siberian 

 species 3-4 ft. high, with large beautiful 

 blue flowers. Closely , related to L. 

 perenne. 



Culture dc. as for L. fla/oum. 



L. tauricura. — An evergreen shrubby 

 species about li ft. high, native of the 

 Caucasus. Leaves glaucous, spoon-shaped 

 or lance-shaped. Flowers from Jime to 

 Augiist, yellow. 



Culture dc. as above for i. arboreum. 



L. usitatissimum {Common Flax). — A 

 beautiful smooth European annual about 

 1^ ft. high, with lance-shaped or linear- 

 acute-leaves, and blue flowers in summer. 



Culture dc. as above for L. grandi- 

 florum. This is the species so largely 

 grown in Ireland and elsewhere for the 

 production of flax, but it is also useful 

 as a border plant. 



L. viscosum. — A Pyrenean plant 1-2 

 ft. high, with lance-shaped, slightly downy 

 leaves, covered with viscid glands. 

 Flowers in summeri about 1 in. across, 

 pale purple or lilac, with deeper veins. 

 They often last well into November and 

 December. 



Culture and Propagation. — This is a 

 good plant for the rock garden, where it 

 can be established. It hkes warm sunny 

 positions and the same treatment gene- 

 rally as L. arboreum. It may be increased 

 from cuttings taken in July and August, 

 and inserted in sandy soil in cold frames 

 in the same way as recommended for L. 

 arboreum. 



Series II. Disciflok.i-: (see p. 123) 

 XXVIII. GERANIACEiE— Geranium and Pelargonium Order 



An order containing about 750 species of herbs (sometimes climbing) 

 or undershrubs, rarely trees, smooth or often clothed with a glandular down. 

 Leaves opposite or alternate, often 2-stipuled, toothed, lobed, dissected, very 



