CYTISUS 



After repotting; they are kept close and often syringed 

 until they are established ; then they ought to have plenty 

 of air and only slight shade. When the new growth has 

 been finished they may be put in the open air until frost 

 is threatening. During the winter they should be kept 

 in a cool greenhouse with plenty of light and carefully 

 and moderately watered. From January they may be 

 transferred gradually in a warmer house for forcing. 



CYTISUS 



441 



655. Cytisus Canariensis. 



(XK.) 



Cuttings started in early spring, transplanted several 

 times and then gradually hardened off, can be grown into 

 flowering specimens for the following spring. Prop, by 

 seeds sown in spring and by greenwood cuttings under 

 glass ; they are also sometimes increased by layers or by 

 grafting. As stock C. nigricans is much used, or La- 

 burnum vulgare for small standard trees ; for plants 

 grown in the greenhouse or south, C. Canariensis is a 

 good stock. ALFRED REHDER. 



Of Cytisus, the young growths root readily in Decem- 

 ber and January in the ordinary way. They should be 

 shifted on as they grow. Good sized plants can be pro- 

 duced if shifting and pinching is not neglected. By the 

 following winter, the winter-propagated plants should 

 be in 5-in. pots, in which size they are most useful. 

 Keep very cool during winter and withhold any forcing. 

 They flower in March, or, if kept at a night temperature 

 of 45, as late as April. Syringe at all times to prevent 

 red spider. To produce good sized plants in one year, 

 it is best to keep them plunged on a bench under the 

 glass the entire summer, with little shade. Older plants 

 can be plunged out of doors during July, August and 

 September. WILLIAM SCOTT. 



Index : albus, 2 ; Andreanus, 1; atropurpureus, 5 ; 

 Canariensis, 10; candicans, 8; capitatus, 7; carneus, 5 ; 

 elongatus, 14, and suppl. list ; Everestianus, 11 ; falca- 

 tus, 6; filipes, 3; hirsutus, 6 ; incarnatus, 2; Linkii, 2 ; 

 linifolius, 13; Maderensis, 9; nigricans, 14; Palmensis, 

 3; pendulus, 5; proliferus, 4; purpureus, 5; racemosus, 

 11, 12; ramosissimus, 10; Schipkeensis (which is offered 

 in the trade as this page goes to press) will be found in 

 the supplementary list under C. leucanthus; scoparius, 

 1; stenopetalus, 12. See Laburmtm and Adenocarpus. 



A. Fls. lateral along the branches. 



B. Style very long, spirally incurved at the apex: 

 fls. large, yellow or partly crimson. 



1. scoparius, Link. (Sarothdmnus scoparius, Wimm. 

 Spdrtium scoparlum, Linn.). SCOTCH BROOM. Shrub, 

 to 10 ft., with erect, slender branches : Ivs.short-petioled, 

 1-3-foliolate ; Ifts. obovate or oblanceolate, sparingly 

 appressed-pubescent, Y-% in. long: fls. usually solitary, 

 '% in. long ; calyx and pedicels nearly glabrous : pod 

 brownish black, glabrous, villous only at the margin. 

 .May. June. M. and S. Europe. Var. Andreanus, Dipp. 

 (Genista Andredna, Puissant). Fls. yellow with dark 

 crimson wings. R.H. 1886:373. Gt. 40:1342. R.B. 19: 

 129. J.H. III. 32:402. There are also varieties with 

 double and with yellowish white fls. and a form with 

 pendulous branches. All the vars. are more tender than 

 the type. The Scotch Broom, C. scoparius, has become 

 established in this country, as a naturalized plant, in 

 waste places from Nova Scotia to Virginia; and it is 

 also reported from Vancouver Island. It is also recom- 

 mended by landscape gardeners for covering raw and 

 broken places. Its yellow fls. and nearly bare stems 

 make a unique combination in the American landscape. 



Even when it kills to the ground in winter, it throws 

 up its stems again in The spring. 



BB. Style not or not much longer than the keel, 



slightly cum <l . 



c. Color of fls. white or purple. 



D. Calyx short campanulate, not longer than wide: 



foliage scarce. 



2. albus, Link. (C. Linkii, Janka. Genista alba, Lam.). 

 Shrub, to 3 ft., with slender, erect, grooved branches : 

 Ivs. short-petioled, 1- to 3-foliolate; Ifts. obovate-oblong 

 to linear-oblong, M-% in. long, sparingly appressed- 

 pubescent: fls. axillary. 1-3, white, Yz-Y* in. long: pod 

 appressed-pubescent, usually 2-seeded. May, June. 

 Spain, N. Africa. -Var. incarnatus, Dipp. Fls. white, 

 slightly blushed. L.B.C. 11:1052 as a Spartina. 



3. niipes, Webb ( Spartocytisus filipes, \\ebb). Shrub, 

 with slender, angulate, thread-like branches : Ivs. slen- 

 der-petioled, 3-foliolate, nearly glabroxis ; Ifts. linear- 

 lanceolate : fls. axillary, 1-2, fragrant, pure white ; 

 wings much longer than the keel. Feb.-May. Tene- 

 riffa. As C. Palmensis, Hort., in the Amer. trade. 



DD. Caylx tubular, longer than wide : Ivs. always 3-fo- 

 liolate : branches terete. 



4. proliferus, Linn. Shrub, to 12 ft., with long and slen- 

 der pubescent branches : Ifts. oblanceolate, silky pu- 

 bescent beneath, green and sparsely pubescent above, 

 1-1% in. long : fls. white, 3-8 on rather long tomentose 

 pedicels ; calyx tomentose ; standard pubescent outside; 

 pod densely tomentose-villous, l%-2 in. long. May,June. 

 Canary Isl. B.R. 2:121. L.B.C. 8:761. Recommended 

 as a fodder plant for California. 



5. purpureus, Scop. Procumbent or erect shrub, to 2 ft., 

 quite glabrous : Ivs. rather long petioled ; Ifts. oval or 

 obovate, dark green above, %-l in. long : fls. 1-3, purple; 

 calyx reddish : pod black, 1-1 Y* in. long. May, June. 

 S.Austria, N. Italy. B.M. 1176. L.B.C. 9: 892. -Var. 

 albus, Hort. Fls. white. Var. carneus, Hort. Fls. light 

 pink. Var. atropurpureus, Hort. Fls. dark purple. Var. 

 pendulus, with slender, pendulous branches, is some- 

 times grafted high on Laburnum. 



CC. Color ot fls. yellow. 



6. hirsutus, Linn. Shrub, 

 to 3 ft., with erect or procum- 

 bent, villous, terete branches: 

 Ifts. obovate or obovate-ob- 

 long, villous pubescent be- 

 neath, K-% in. long : fls. 

 2-3, short,- petioled ; calyx 

 villous pubescent: pod 1 in. 

 long, villous. May, June. 

 M. and S. Europe, Orient. 

 B. M. 6819 (leaflets erro- 

 neously shown as serrate). 

 L.B.C. 6:520 (as C. falca- 

 tus) B. R. 14:1191 (as C. 

 multiflorus). 



AA. Fls. in terminal heads, 

 with bracts at the base. 



7. capitatus, Scop. Shrub, 

 to 3 ft., with erect, terete, 

 villous branches: Ifts. ob- 

 ovate or oblong - obovate, 

 sparingly appressed pubes- 

 cent above, villous pubescent 

 beneath, %-l in. long : fls. 

 yellow, brownish when fad- 

 ing, nearly 1 in. long : pod 

 villous, \-\Yi in. long. July, 

 Aug. M. and S. Europe. L. 



B.C. 5:4*7. I.H. III. 31:161 (X Y*.) 



(as Genista). 



AAA. Fls. in terminal racemes. 

 B. Foliage persistent : branches grooved or striped. 



c. Lvs. distinctly petioled. 

 D. Racemes rather short and dense. 



8. candicans, Linn. Shrub, to 10 ft. : branches villous- 

 pubescent when young: Ivs. short-petioled, usually gla- 



656. Cytisus racemosus. 



