680 ARBORETUM ET FRUTICETUM BRITANNICUM. 



interior pair, the latter resembling petals ; or 4-parted, with the lobes 

 equal. Stamens 6. Stigmas 2, in one species ; style bifid, in the other. 

 Fruit compressed, in one species ; roundish, in the other. (Cr. Don.) 



Leaves simple, alternate, stipulate, sub-evergreen ; small, more or less 

 ovate. Flowers terminal, white, tinged with pink. Shrubs, spinose, low, 

 decumbent ; natives of the South of Europe. Culture as in Tragopyrum. 



J* I. A. SPINOZA L. The spine-branched Atraphaxis. 



Identification. Lin. Hort. Cliff., 138. ; Willd. Sp. PI., 2. p. 248. 

 Synonyme. ,4'triplex orientalis, frutex aculeatus, fibre pulchro, Tourn. 



Cor. 83. 

 Engravings. Dend. Brit., t. 119. ; and our fig. 1325. 



Spec. Char., fyc. Spinose, with the branches ascending, 

 horizontal, or deflexed. Leaves glaucous, ^ in. long, 

 or less ; disk ovate, acute, petiole short. Calyx of 4 

 leaves. ( Willd:) A low sub-evergreen shrub. Borders of 

 the Caspian Sea and the Levant. Height 2 ft. to 3 ft. 

 Introd. 1732. Flowers white, tinged with pink; 

 August. Seeds brown, occasionally ripened. 



It thrives best in sandy peat, and is propagated 

 by layers. So elegant and rare a plant deserves 

 a place in every choice collection. 



-" 2. A. UNDULA'TA L. The waved-leaved 

 Atraphaxis. 



1325. X.spin&sa. Identification. Lin. Hort. Cliff., 137. ; Willd. Sp. PL, 2. p. 249. 



Engravings. Dill. Elth., t. 32. f. 36. ; and our fig.13'26. 



Spec. Char., fyc. Less rigid than A. spinosa, and not spiny. Leaves 

 ovate, waved at the edges, and of a greener hue. Calyx 4-parted, 

 lobes equal, ovate, and concave. Stamens lanceolate. Style bifid. 

 Fruit roundish. (Willd.) Alow shrub. Cape of Good Hope. i.m 

 Height 6 in. to 1 ft. Introd. 1732, rare. Flowers whitish; June and July. 



GENUS III. 



CALLl'GONUM L. THE CALLIGONUM. Lin. Syst. Dodecandria Tetra- 



gynia. 



Identification. Lin. Gen., 680. ; Willd. Sp. PI., 2. p. 926. 

 Synonymes. Pallasza L., Pterococcus Pall. 



Derivation. Kallos, beauty, gonu, a knee ; in description of the neat and jointed character of the 

 branches. 



Gen. Char., fyc. Calyx inferior, persistent, turbinate in the lower part, ending 

 upwards in a 5-parted spreading border ; the two outer lobes rather smaller. 

 Stamens about 16 ; the filaments slightly united at the base, and then 

 diverging. Anthers peltate. Germen 4-sided, acuminate. Styles 4 or 3. 

 Stigmas capitate. Fruit an achenium, that has 4 sides and 4 wings. (G. 

 Don.) 



Leaves simple, alternate, exstipulate, deciduous ; caducous, minute. 

 Shoots rush-like, smooth, green. Flowers in groups, whitish. Shrub erect, 

 evergreen from the colour of the shoots -, natives of Siberia. Layers. 



sfc 1. C. PALLA'SL* L'Herit. Pallas's Calligonum. 



Identification. L'Hdrit. Stirp., 2. p. 37. ; Willd. Sp. PL, 2. p. 927. 



Synonymes. Pterococcus aph^llus Pall. Voy. 2. p. 738. t. 8. ; Calligonum nolygonoldes Pall. Itin. 



3. p. 536. ; Pallasza caspica Lin. fil. Suppl. 252. Savigny in Encycl. ; PallSsz'a Pteroc6ccus Pall. 



Fl. Ross. 2. p. 70. t. 77, 78. ; Caspischer Hackenknopf; Ger. 

 Engravings. Pall. Fl. Ross., 2. t. 77, 78. ; and OUT figs. 1237. and 1238. 



Spec. Char., fyc. Fruit winged; wings membranous, curled, and toothed. 



