238 



ARBORETUM ET FRUTICE BRITANNICUM. 



Variety. 



* C. a. 2 inermis Hort. has the branches 

 without spines. Plants in the Horti- 

 cultural Society's Garden. 



Pallas informs us that upon the banks of rivers 

 it grows to the height of 18 ft. or more ; but in 

 arid places it is only a small shrub ; in the latter 

 state forming, as we think, the varieties C. (a.) 

 Altagdna, and C. (a.) microphjlla. C. arborescens 

 forms an erect stiff tree, with numerous upright- 

 growing branches. The flowers are axillary, one 

 on a pedicel ; the pods are oblong-taper, and each 

 contains 3 or 4 seeds. The wood is hard, com- 

 pact, and very tough ; yellow on the outside ; and 

 within, waved and striped with red, and with 

 reddish brown. 



M 2. C. (A.) ALTAGA^NA Poir. The Altagana 

 Caragana, or Siberian Pea Tree. 



Identification. Poir. Sup. , 

 2. p. 89. ; Dec. Prod., 2. 

 p. 268. ; Don's Mill., 2. 



Synonymes. RoWnia Al- *' ' arbor6scens ' 



tagana Pall Fl. Ross. t. 42., L'Herit. Stirp. t. 76. ; Cara- 

 gitna microphylla Lam. Diet. \. p. 615. 



Derivation. Altagana is the name of the shrub in Siberia. 



Engravings. Pall. Fl. Ross., t. 42., under the name of Ro- 

 bfma Altagana-, L'Herit. Stirp., t. 76. ; and. our fig. 386. 



Spec. Char., $c. Leaves having 6 or 8 pairs 01 

 glabrous, obovate-roundish, retuse leaflets. Pe- 

 tiole unarmed. Stipules spinescent. Pedicels 

 solitary. Legumes rather compressed. (-Don's 

 Mill.) A low shrub. Siberia, in arid plains. 

 Height 3ft. to 4ft. Introd. 1789. Flowers 

 yellow ; April to July. Legume brown ; ripe in 

 September. 



Usually propagated by grafting on C. arborescens. 



3. C. (A.) MICROPHY'LLA Dec. The small-leaved Caragana, or Siberian 



Pea Tree. 



Identification. Dec. Prod., 2. p. 268.; Don's Mill., 2. p. 243. 

 Synonymes. RobinzVz microphjlla Pall. Fl. Ross, t. 42., 



f. 1,2.; Caragana Altagdna var. Poir. Suppl. 2. p. 89. 

 Engravings. Pall. Fl. Ross., t. 32. f. 1, 2., under the name 



of Robim'a microphjlla ; and our fig. 387. 



Spec. Char., $c. Leaves with 6 7 pairs of 

 hoary retuse leaflets. Petioles and stipules ^ 

 rather spinescent at the apex. Root creep- 

 ing. (Don's Mill.) A low shrub. Siberia, 

 in the Desert of Baraba, and in other arid 

 places. Height 2 ft. to 3 ft. Introduced in 

 1819. Flowers yellow ; April to June. Le- 

 gume brown ; ripe in August. 



-* 4. C. (A.) REDO'WSK/ Dec. Reuowski's Caragana, or Siberian Pea Tree. 



Identification. Dec. L<?gum., t. 11. ; Don's Mill., 2. p. 243. 

 Engraving. Dec. Legum., 1. 11. f. 45 , in the seedling state. 



Spec. Char., $c. Leaves with two pairs of ovate, acute, smooth leaflets. 

 Stipules spinose. Flowers yellow. (Don's Mill.) A low shrub. Siberia. 

 Height 4 ft. to 5 ft. Introduced in 1820. Flowers yellow ; April and Mav. 

 Legume brown ; ripe in August. 



386. C. (a.) AUagbna. 



387. C. (a.) tnicrophj'l 



