LEGUMINOS^E. LX. CYTISUS. 



155 



the Scotch and common Laburnum is much used by cabinet- 

 makers and turners, for its hardness, beauty of grain, and du- 

 rability. 



Alpine or Scotch Laburnum. Fl. June. Clt. 1596. Tree 

 15 to 20 feet. 



5 C. NI'GRICANS (Lin. spec. 1041.) branches terete, twiggy; 

 leaves stalked, clothed with adpressed pubescence beneath, as 

 well as the branches, calyxes, and legumes ; leaflets elliptic ; 

 racemes elongated, terminal, erect ; calyxes bractless. T; . H. 

 Native of Piedmont, Vallais, and Bohemia, on hills and along 

 way sides. Jacq. austr. t. 387. Ker. bot. reg. 802. Lam. ill. t. 

 618. f. 3. Duh. arb. ed. nov. 5. t. 46. f. 1. This plant turns 

 truly black on drying. 



JllackishCytitas. Fl. Ju. July. Clt. 1730. Sh. 3 to 6 feet. 



6 C. SESSILIFOLIUS (Lin. spec. 1041.) plant quite smooth; 

 branches terete ; floral leaves almost sessile ; leaflets ovate ; 

 racemes terminal, erect, short ; calyxes each having a 3-leaved 

 bractea just under it. lj . H. Native of the south of France 

 and Piedmont. Lam. ill. t. 618. f. 2. Duham. arb. ed. nov. 5. t. 

 45. f. 1. Curt. bot. mag. 255. J. Bauh. hist. 1. p. 2. p. 374. f. 2. 



Sessile-leaved Cytisus. Fl. May, June. Clt. 1629. Shrub 

 4 to 6 feet. 



7 C. TIUFLORUS (Lher. stirp. 184. Desf. fl. atl. 2. p. 139. 

 but not of Lam.) hairy ; branches terete ; leaves petiolate ; 

 leaflets obovate-elliptic ; flowers axillary, pedicellate, terete, 

 somewhat racemose at the tops of the branchlets. ^ . H. Na- 

 tive about Narbonne. In Provence, Liguria, Etruria, Sicily, 

 and Mauritania. C. villosus, Pourr. act. toul. 3. p. 317. Clus. 

 hist. 1. p. 94. f. 3. Brandies rather hispid. Leaves villous. 

 Legume hairy. It differs from C. triflbra of Lam. in the calyx 

 being campanulate and broadly bilabiate, not tubular. 



Three-flowered Cytisus. FL June, July. Clt. 1640. Shrub 

 3 to 4 feet. 



8 C. MOLLIS (Willd. enum. suppl. 51.) leaflets oblong, clothed 

 with soft pubescence, acute at both ends ; peduncles axillary, 

 usually tern ; calyxes subglobose, bifid, scarious. fj . H. Native 

 of? Perhaps sufficiently distinct from' C. trifibrus. 



Soft Cytisus. Fl. June, July. Clt. 1818. Shrub 2 to 4 ft. 



9 C. PA' TENS (Lin. syst. veg. 555. ex Lher. stirp. 184.) 

 branches striated, somewhat pubescent ; leaves petiolate, trifo- 

 liate, but the upper ones are simple, and are as well as the leaf- 

 lets obovate, and clothed with adpressed pubescence ; flowers 

 axillary, usually twin, pedicellate, nodding ; legumes very hairy. 

 Tj . H. Native of Portugal. C. pendulinus, Lin. fil. suppl. 

 328. Genista tomentosa, Poir. suppl. 2. p. 719. Spartium 

 patens, Lin. syst. 535. Brot. fl. lus. 2. p. 83. but not of Cav. 



Spreading Cytisus. Fl. Ju. July. Clt. 1752. Sh. 4 to 6 ft. 



10 C. ARBORKUS (D. C. prod. 2". p. 154.) branches striated, 

 glabrous ; leaves stalked ; leaflets obovate, clothed with fine 

 pubescence beneath ; flowers axillary, aggregate, pedicellate, 

 nodding; legumes clothed with adpressed silky villi. P; . H. 

 Native of valleys about Algiers. Spartium arboreum, Desf. atl. 

 2. p. 131. t. 177- Genista pendulum, Poir. voy. 2. p. 208. A 

 shrub 8 to 10 feet high, with a trunk about the thickness of a 

 man's arm. 



Arboreous Cytisus. Shrub 8 to 10 feet. 



1 1 C. WELDE'NI (Visiani, pi. dalm. ex bot. zeit. Jan. 1830. 

 p. 52.) erect ; leaves ternate, petiolate ; leaflets elliptic, entire, 

 cuneated at the base, and obtuse at the apex, smooth ; racemes 

 terminal, stalked, pyrami.lal, straight ; pedicels hoary and vil- 

 lous ; calyxes campanulate, 3-lobed ; lobes tomentosely ciliated ; 

 corolla glabrous, but the carina is clothed with silky villi ; legume 

 glabrous, mucronate by the style. (7 . H. Native of Dalmatia, 

 in woods on mounts Grab and Krivoscie. Flowers fragrant, 

 yellow. 



H r elden's Cytisus. Shrub 2 to 4 feet. 



12 C. GRANDIFLORUS (D. C. prod. 2. p. 154.) branches angu- 

 lar, usually glabrous ; leaves in fascicles, petiolate, trifoliate, 

 but for the most part simple, and are, as well as the leaflets, 

 ovate-lanceolate, but the primary ones are roundish ; flowers 

 lateral, pedicellate, solitary or twin ; legume woolly. Tj . H. 

 Native of Portugal, on hills, in hedges, and in woods. Spar- 

 tium grandiflornm, Brot. fl. lus. 2. p. 80. 



Great-flowered Cytisus. Fl. June, July. Clt. 1816. Shrub 

 3 to 4 feet. 



13 C. SCOPA'RIUS (Link, enum. 2. p. 241.) branches angular, 

 smooth ; leaves trifoliate, petiolate, upper ones simple, and are 

 oblong, as well as the leaflets ; flowers axillary, pedicellate, soli- 

 tary ; legume pilose on the margins, tj . H. Native of Europe, 

 in woods and on commons ; plentiful in Britain. Spartium sco- 

 parium, Lin. spec. 996. Oed. fl. dan. t. 313. Smith, engl. bot. 

 1 339. Genista scoparia, Lam. diet. 2. p. 623. but not of Vill. 

 Gen. hirsuta, Mcench. meth. 144. Duham. arb. t. 84. The 

 common broom is used in many parts of Britain for besoms, and 

 in some places it serves for thatching cottages, corn, and hay 

 ricks. The flower-buds before expansion are sometimes pickled 

 in the manner of capers. The branches are said to be capable 

 of tanning leather, and of being manufactured into coarse cloth, 

 when tender they are mixed with hops in brewing, and in some 

 places used as fodder. The old wood furnishes the cabinet-makers 

 with the most beautiful material for vineering. The plant when 

 burnt affords a most beautiful alkaline salt, and on this salt the 

 efficacy of broom in dropsies must depend. The seeds of broom 

 have a very bitter taste, and when given in decoction prove con- 

 siderably diuretic. The branches have similar properties. 



Far. ft, albus ; flowers white. 



Common-firoom. Fl. April, July. Britain. Sh. 3 to 10 ft. 



SECT. III. CALYCOTOME (from Ka\v,, calyy, calyx, and TO/^IJ, 

 tome, a cutting ; in reference to the calyx at length falling off in 

 part, giving it the appearance of being cut off). Link, in Schrad. 

 neue, journ. 2. p. 2. p. 50. D. C. prod. 2. p. 154. Calycotomon, 

 Hoffmans. verz. plant. 1824. p. 166. Calyx campanulate, some- 

 what bilabiate, at length circumscisely truncate. Legume thick- 

 ened on the upper suture. Shrubs, with spiny branches and 

 yellow flowers. 



14 C. SPINOSUS (Lam. diet. 2. p. 247.) branches angular, 

 spiny ; leaves trifoliate ; leaflets obovate-oblong ; legumes quite 

 glabrous. V? . H. Native about Genoa, on hills in Corsica, 

 and of Algiers. Spartium spinosum, Lin. spec. 997. J. Bauh. 

 hist. 1. p. 2. p. 376. icon. Lob. icon. 2. t. 95. 



Spiny Cytisus. Fl. June, July. Clt. 1596. Sh. 5 to 6 feet. 



15 C. LANI'GERUS (D. C. prod. 2. p 154.) branches striated, 

 spiny ; leaves trifoliate ; leaflets obovate-elliptic ; legumes very 

 hairy, and rather woolly. I? . H. Native of Corsica, Crete, 

 Mauritania, Gibraltar, Portugal, &c. on hills. Spartium lani- 

 gerum, Desf. atl. 2. p. 135. Sp. villosum, Poir. voy. 2. p. 207. 

 Calycotome villosa, Link, 1. c. Spartium spinosum, Brot. fl. lus. 

 2. p. 85. 



t'ar. fl, rigidus (D. C. prod. 2. p. 154.) spines very strong. 

 J? . H. Native of the Great Syrtes. Spartium rigidum, Viv. fl. 

 lib. p. 40. t. 17. f. 1. 



Wool-bearing Cytisus. Fl. Ju. July. Clt. 1821. Sh. 3 to 6 ft. 



SECT. IV. TUBOCY'TISUS (from tubus, a tube, and cytisus ; in 

 reference to the tubular shape of the calyx). D. C. 1. c. prod. 

 2. p. 155. Viborgia, Mcench. meth. 132. but not of Thunb. 

 Calyx tubular, bilabiate at the apex. Unarmed shrubs. 



" Flowers nhite or whitish. 



16 C. PROLI'FERUS (Lin. fil. suppl. 328.) stems erect ; branches 

 terete, velvety ; leaflets elliptic, and are, as well as the calyxes 

 silky ; flowers lateral, umbellately aggregate ; legume villous. 



v 9 



A iv 



