183 a 



ORCHIDACEyE. 



[Endogens. 



No. 1 shows the theoretical state of the flower, with the three outer stamens 

 complete, and three inner staminodes. The outer stamens are here in the condition 

 in which they appear in the plant figured by Dr. Wight under the name of Eupro- 

 boscis, and by Griffith in Falconer's Dendrobium normale. 



No. 2 represents such genera as Odontoglossum in which one outer stamen is 

 perfect, the two outer staminodes in the form of the lateral plates of the crest of the 

 disk ; then of the inner staminodes two form the wings of the column, and the other 

 the midrib which separates or is blended with the lateral plates of the disk. 



No. 1. 



No. 2. 



No. 3. 



No. 7. 



No. 8. 



No. 9. 



No. 3 represents such a structure as that of Anacamptis, where the usual outer 

 stamen is attended by two of the inner staminodes, while two outer staminodes appear 

 as plates on the lip, and the central of the inner staminodes is missing. Solenidium 

 would also belong to thia form. 



No. 4 is the case of Cymbidium properly so called, in which all the inner staminodes 

 are deficient, and the lateral outer staminodes lie upon the lip in the form of two 

 raised lines. 



No. 5 shows the beginning of the series in which outer lateral staminodes are 

 wanting, except one which represents the perfect stamen in the preceding cases, 

 while on the other hand the two lateral inner stamens are perfect and the third 

 wanting; this occurs in Cypripedium. 



