298 METAMOEPHY. 



point of view. C. Morren has given the name adeno- 

 petaly to a case wherein one of the glands at the base 

 of the petals in Lopczia was replaced by a petal.^ A 

 similar change may be seen in the double Oleander. 



Staminody of the bracts. An instance of this has been 

 already alluded to in Adies excelsa, as observed by 

 Prof. Dickson, and in which some of the bracts were seen 

 assuming the form and characteristic of the stamens 

 see ante : p. 192. Signer Licopoh met with a similar 

 substitution of anthers for bracts in Melianthus majw.^ 



Staminody of the sepals and petals. In the first named this 

 is of very rare occurrence. M. Gris has recorded an 

 instance in Philadelphus speciosus'^ which appears to be 

 the only case on record. The corresponding change in 

 the case of the petals is far more common. De Can- 

 doUe cites in illustration of this occurrence flowers of 

 the common haricot, in which the alse and carina of the 

 corolla were thus changed.* There is in cultivation a 

 form of Saxifraga granulata wherein the petals are 

 replaced by stamens, so that there are fifteen stamens. 

 A similar change has been observed in Capsella bursa- 

 pastoris. 



Cramer figures and describes a stamen occupying 

 the place of a petal in Daucus Cavota} Turpin" de- 

 scribes a similar occurrence in Monarda Jistidosa, in 

 which the lower lip terminated in an anther, but this 

 may have been a case of adhesion. Moquin cites 

 from Chamisso, Digitalis purpurea, and from Jussieu, 

 Asj)hodelus ramosus, as having presented this change, 

 and Wiegmann'^ has seen anthers developed on the 

 awns of Avena chinensis. In semi-double flowers of 

 Ophrys aranifera and Orchis mascula, the lateral petals 



' ' Bull. Acaxi. Belg.,' xvii, part i, p. 616, c. tab., and 'Lobelia,* p. 83. 

 Cited in ' Bull. Soc. Bot. France,' xiv, p. 253 (' Rev. Bibl.'). 

 ^ ' Bull. Soc. Bot. Fr.,' 1858, p. 331. 



* ' Mem. Legum.,' p. 44. 



* Bildungsabweich, ' Pflanz. Fam.,' tab. 8, f. 12. 



* ' Atlas de Gothe,' p. 65. t. 4. f. 18. 



^ Wiegmann, ' Bot. Zeit.,' 1831, p. 5, tab. i. 



