APPENDIX A 



507 



consequence of the conveyance of the sticky pollen to the protogynous female 

 catkins by insect-visitors. 



^^ 3 ,^ 



00 



Fig. 410. 

 Floral diagrams of male flowers of Willow. 

 A =S. caprea. B=S. purpurea. C=S. pen- 

 tandta. (After Eichler.) 



Floral diagrams of female flowers of Salix. 

 A =S. caprea. B^S.alba. (After Eichler.) 



The fruit is a tough capsule, which splits longitudinally, exposing the seeds, 

 each with a tuft of silky hairs attached to its base, by which it is transferred 

 by the wind. 



ORDER: CURVEMBRYEAE. 



Family: Caryophyllaceae. Examples; Ragged 



Campion. 



Robin, Red 



(13) The Ragged Robin {Lychnis flos-cuculi, L.) is a herb of damp grassy 

 ground, with perennial root-stock from which arise upright stems with simple 

 leaves in alternate pairs. The inflorescence is a definite, regular dichasial 



/ r 



Fig. 412. 

 The Ragged Robin {Lychnis flos-cuculi, L.). I. whole flower. II. same in section. 

 III. petal with ligule. IV. petal with ligule and petaline (inner) stamen. V. gynoe- 

 cium. VI. floral diagram. 



cyme : that is, the main axis ends in the first flower ; branches arising in the 

 axils of the last leaves again terminate each in a* flower, and so on (compare 

 Fig. 170, p. 224). The flower is of a radial type, with peculiar tattered pink 

 petals, which gives the name (Fig. 412). Its constitution is as follows : 



Calyx, sepals 5, gamosepalous, inferior, dilated below, and serving as a 

 mechanical support to the weaker parts within. 



Corolla, petals 5, polypetalous, inferior, deeply notched, and again divided, 

 bearing paired Ugules at the sharp angle of the claw of each. 



