139 



or they may be raised ia a sccd-bcd, and bo afterwards planted ou 

 where they arc to flower. Some seed should be sown aimually, as 

 the plants seldom conthiiic longer than two years. Jt is hardy, and 

 succeeds in ahnost any soil or situation. 



The plants atlbrd ornament and variety in tin; borders both from 

 their flowery nature and the peculiiirity of their long-horned pods. 



2. CiSTUS LADAMFERUS. 



GUM CISTUS. 



Tins genus allbrds plants of the shrubby evergreen kind. Rock 

 Hose. 



It belongs to the class and ovder Poli/andiia Monogij)ii(t, and ranks 

 in the natural order of Rotuceoe. 



The characters are: that the calyx is a five-leaved permanent 

 perianthium: leaflets roundish, concave; of whicli two alternate ones 

 are lower and smaller: the corolla has five petals, roundish, flat, 

 spreading, very large : the stamina consist of numerous capillary fila- 

 ments, shorter than the corolla: anthers roundish, small: the pistil- 

 lum is a roundish germ: style simple, the length of the stamens: 

 stigma flat, orbiculate: the pericar])iuni is a roundish capsule, co- 

 vered with the calyx: the seeds numerous, roundish, and small. 



The species are: 1. C. popuUfoCiKs, Poplar-leaved Cistus, or Rock 

 Rose; 2. C. laurifo/his. Bay-leaved Gum Cistus; 3. C. ladaniferus, 

 Spanish Gum Cistus; 4. C. incanus. Hoary Rock Rose, or Rose Cis- 

 tus; 5. C.halinnJ'oUus, Sea Purslain-leaved Cistus; 6". C. Mouspc- 

 liensis, Montpelier Gum Cistus; 7. C. creticus, Cretan Ladaniferous 

 Cistus; 8. C. albidm. White-leaved Cistus; 9. C. crispus, Curled 

 leaved Cistus: 10. C. s«/t;i/b/i«,s, Sage-leaved Cistus. 



In this numerous genus there arc other species that may equally 

 deserve cultivation. 



