RUTACEAE 77 



3. Rachis persisting as a spine after fall of leaflets. C. spinosa. 

 Rachis not persistent: leaflets few. 4. 



4. Leaflets distinctly pinnate. C. Chamlagu. 

 Leaflets appearing digitate, narrow. C. pygmaea. 



CALOPHACA. 



Deciduous shrubs (or grafted as small standard trees) with 

 slender terete twigs; small roundish continuous pith; alternate 

 minute raised roundish leaf-scars with a single bundle-trace; 

 persistent triangular stipules; small sessile buds with few 

 loose scales 1 ; odd-pinnate leaves with small round entire sessile 

 leaflets; rather large perfect papilionaceous flowers in sparse 

 racemes; and terete pods. 



Leaflets about 15: flowers under 10. C. woigarica. 



Leaflets about 20: flowers about 12. C. grandiflora. 



PUERARIA. Kudzu Vine. 



Herbaceous- twining plants, woody and persistent only at 

 the base, the coiling ends of the branches tendril-like, with 

 alternate trifoliolate leaves with very large-lobed leaflets; arid 

 (in warm enough regions) perfect purple papilionaceous flow- 

 ers in axillary spikes, followed by long legumes. 

 Leaflets rather rhombic-ovate, ciliate. P. hirsuta. 



Family RUTACEAE. Rue Family. 



A moderate sized family, chiefly important commercially 

 as producing the citrus fruits; somewhat used in ornamental 

 planting. 



TBIPHASIA. Limeberry. 



Evergreen shrubs with pale hard wood with minute diffus- 

 ed ducts and fine medullary rays; rather slender green twigs; 

 paired axillary spines; no stipule scars; alternate trifoliolate 

 pellucid-punctate leaves; moderately small perfect polypetalous 

 white fragrant flowers solitary in the axils; and thick-skinned 

 red berries with 1 or more very large seeds. 

 Glabrous: terminal leaflet enlarged. T. trifolia. 



