Listera convallarioides. 9 



head of this chapter by Brown, consisting of species from Ophrys. 

 The United States present us with two species, Listera pubescens and 

 the present one. No. 3. L. convallarioides, of Nuttall, I do not know. 



Fig. 1. of the plate represents a common sized specimen of Listera 

 convallarioides -, specimens are often smaller than this, and 

 some larger. 



a. A side view of a flower. 



b. An under view of the same, both enlarged. 



VOL. II. 2 



