252 



PHYLLODY 



the stamens and pistils being abortive. In Banuncuhis 

 the leaves that appear in the place of the petals have 

 no scale at their base, and in Tropceolum the calyx (or 

 receptacle) is free from the usual spur. 



The absolute frequency of this occurrence seems to 

 be greatest in those flowers which are normally poly- 

 petalous. The petals of these flowers, as a general 

 rule, are more like the leaf-sheaths than the leaf-blades 

 as to their venation, hence it would seem that the phyl- 

 lomorphic condition in these petals is a manifestation of 

 a greater degree of organizing force than that which 

 occurs in those cases where the petals are normally 

 present in the form of contracted blades or laminae. 

 (See the remarks in the preceding section.) 



Frondescence of the petals has been observed most 

 frequently in the following cases ; some, perhaps, were 

 cases merely of virescence, q. v. ; see also under 

 Chioranthy, Prolification. 



Ranunculus repens ! 

 Delphinium Ajacis. 



crassicaule. 

 Aquilegia vulgaris. 

 Actsea spicata. 

 Brassica oleracea ! 

 Diplotaxis muralis. 

 Hesperis matronalis. 

 Thlaspi bursa pastoris. 

 Sisymbrium tenuifolium. 

 Turritis glabra. 

 Rapbanus sativTis. 

 Peltaria alliacea. 

 Alyssum incanum. 

 Erysimum Barbarea. 

 officinale ! 

 cheiranthoides. 

 Cheirantbus Cheiri. 

 Dictamnus Fraxinella ! 

 Lychnis sylvestris. 



dioica ! 

 Alsine media. 

 Gerastium vulgatum ! 



triviale. 

 Reseda lutea. 



Phyteuma. 

 Malva sylvestris. 

 Tropeeolum majus ! 



Geranium, sp. ! 



Triumfetta, sp. ! 



Epilobium hirsutum ! 



(Enotbera striata. 



Rubus, sp. 

 Rosa, var. cult. ! 

 Trifolium repens ! 



Spiraea oblongifolia. 



Amygdalus communis. 

 Rosa! 



Cerasus vulgaris ! 



Peraica vulgaris ! 



Potentilla nepalensis. 



Geum rivale. 



Daucus Carota ! 



Hcracleum Sphondylium. 



ToriUs Antbriscus. 



Ecbinopbora maritima. 



Campanula rapunculoides. 

 glomerata. 



Phyteuma spicatum. 



Calendula officinalis. 



Cirsium tricepbalodes. 



Senecio vulgaris. 



Scabiosa columbaria, 

 agrestis. 



Lonicera xylosteum. 



Periclymenum. 



