XXV. LEGUMINA^CE^: 6'Y TISUS. 



221 



jbk 11. C. TRIBRACTEOLA X TUS Webb. The three-bracted Cytisus. 



Identification. Tter Hispan., p. 51 . ; Otia Hispan., p. 3. 

 Engravings. Otia Hispan., t. 3. and our fig. 351. 



Spec. Char., %c. Decumbent. Branches tetragonal, 

 divaricate, rigid, obtuse. Leaves trifoliolate, 

 verticillately sub-opposite ; leaflets ovate-elliptic, 

 slightly obtuse at the apex, retuse, with ash- 

 coloured silky down, petiolulate. Common petiole 

 none, or cohering with the branch. Flowers axil- 

 lary, clustered, pedunculate. Calyx bilabiate, 

 hairy; upper lip cut to the middle in narrow 

 acute segments ; lower lip longer, narrow, 3- 

 toothed ; middle tooth longest, supported at the 



/i- A K U U 



{Webb y Otia Hup.} A decumbent shrub, ever- 

 green from the colour of its bark. Spain near Medina Sidonia, on the sum- 

 mits of mountains. Height 1 ft. to 3 ft. Introduced in 1838. Flowers 

 yellow ; May. Legume ?. 



ft 12. C. LANI'GERUS Dec. The wool-bearing Cytisus. 



Identification. Dec. Prod., 2. p. 154. ; Don's Mill., 2. p. 155. ; Webb Iter 



Hispan., 51. 

 Synonymes. Sp&rtium lanfeerum Detf. Fl. Atl. 2. p. 135. : Calycotome 



vill&sa Link Enum. ; Spartium villbsum Brot. Fl. Lus. 2. p. 85., and 



Pair. Voy. 2. p. 207. 

 Engraving. Our fig. 352. from a specimen in the British Museum. 



Spec. Char., $c. Branches furrowed, spiny. Leaves tri- 

 foliolate ; leaflets obovate-elliptical. Legumes very hairy 

 in a woolly manner. (Dec. Prod.) A spiny shrub. 

 Found wild on hills and in rough places in Corsica, 

 Crete, the Archipelago, Mauritania, Gibraltar, and Por- 

 tugal. Height 2 ft. to 10 ft. Introduced in 1821. 

 Flowers yellow ; June and July. Legume dark brown, 

 or black ; ripe in October. 



Variety. 



ft C. /. 2 rigidus Dec. Spines very strong. 



Not common in collections, and in all probability it is 

 nothing more than a variety of the preceding species. 



iv. Tubocytisus Dec. 



Derivation. From tubus, a tube, and cytisus ; in reference to the tubular shape of the calyx. 



Sect. Char. Calyx tubular, with the apex toothed-lipped. Thornless shrubs. 

 (Dec. Prod., ii. p. 155.) 



A. Flowers white or whitish. 



j 13. C. LEUCA'NTHUS Waldst. et Kit. The white-flowered 

 Cytisus. 



Identification. Waldst. et Kit., 2. p. 141. ; Dec. Prod., 2. p. 155. : Don's Mill., 



2. p. 156. 

 Engravings. Bot. Mag., t. 1438. ; and our fig. 353. 



Spec. Char., $c. Stem erect. Branches round, and, as well 

 as the leaves, clothed with closely pressed pubescence. Leaf- 

 lets elliptic and acute. Flowers at the points of the branches ; 

 heads of flowers bracteated by two leaves. (Dec. Prod.) A 

 downy shrub. Croatia, in woods. Height 3 ft. to 4 ft. 

 Introduced in 1806. Flowers yellowish white ; June and 

 July. Legume black ; ripe in October. 



353. C. leuc&nthus. 



