NAMES AND OBSERVATIONS ON INDIAN PLANTS. 54?9 



Cypripedium} as well as in the sterile petal oid processes 

 similarly situated in the other genera, as in Biuris. And 

 the third stamen of the inner series, still more altered in 

 form, may be considered as present in certain New Holland 

 genera, especially Glossodia, where this supposed stamen 

 is placed within the labellum, but entirely distinct from it; 

 in Upiblema, Pterostylis, and Chiloylottis, in which an 

 analogous appendage similarly situated coheres in various 

 degrees with that division of the perianthium ; and perhaps 

 it may be considered as indicated in all cases where the 

 labellum is furnished with a process, however minute, 

 arising from its axis. 



If the view here taken of the position of the lateral 

 filaments in Cypripedium and Biuris be adopted, it may 

 be remarked that indications or rudiments of the two 

 stamina necessary to complete the order in Orchidece, of 

 those, namely, corresponding with the lateral segments of 

 the outer series of the perianthium, have not yet been 

 observed in the regular structure of any plant of the order. 

 They have, however, been occasionally met with in mon- 

 strous flowers of Habenaria bifolia, in more than one spike 

 of which I have found the greater number of flowers 

 triandrous, the three antherae being equidistant, and placed 

 exactly opposite to the three divisions of the outer series of 

 the perianthium, the inner series of which remains in its 

 ordinary state. 



M. Achille Richard 2 has given an account of an [75 

 analogous monstrosity in Orchis latifolia. In this case 

 of a triandrous Orchis, M. Richard having adopted the 

 opinion, which I believe I was the first to advance, 3 of the 

 origin or nature of the auriculae of the anthera of many 

 genera of Orchidece, considers the additional antherae as 

 formed by the perfect development of these auriculae. 

 This view, however, cannot be taken of the monstrosity of 

 Habenaria bifolia, in which not only the auriculae of the 

 anterior or ordinary stamen are distinctly present, but two 



1 'Prod. Fl. Nov. Soil., 3 i, p. 309. 



- 'Mem. de la Soc. d'Hist. Nat. de Paris,' i, p. 202. 



3 ' Prod, FL Nov. Hot!.,' i, pp. 309 Sr 311. 



