PISTILLODY. 309 
into a long style, terminated by a flattened spathulate 
stigma. 
Delphiniwm elatum is one of the plants in which 
this change has been most frequently noticed.’ 
In willows the change of pistils into staminal organs 
has been frequently observed. In Salix babylonica 
Prof. Schnizlem has described various transition stages 

q h 
Fic. 165.—Sempervivun tecotorum. a. Normal stamen. h. Normal 
carpel. b,c, e,f,g. Structure partly staminal, partly carpellary. d. 
Transverse section through c, showing pollen internally, ovules ex- 
ternally. 
between the carpels and the stamens, and in one 
instance, in addition to this change, a perfect cup- 
shaped perianth was present, as happens normally 
in Populus.” Mr. Lowe also records the conversion 
of stamens imto ovaries in Salir Andersoniana, and 
this by every conceivable intermediate gradation.’ 
? Godron, ‘ Bull. Soc. Bot. Fr.,’ xiii, p. 82, Rev. Bibl. 
* Cited in Henfrey, ‘ Bot. Gazette,’ in, p. 12. 
5 «Ann. Nat Hist.,’ September, 1856, p. 56. See also Kirschleger, 
