AMERICAN BOTANISTS will find the 

 concluding paper indispensable for a 

 proper understanding of Spiranthes "in the 

 United States and Canada. The species of 

 this genus are admittedly difficult and poorly 

 understood. In the new light here thrown 

 upon them, after prolonged study in the 

 largest American herbaria, as well as afield, 

 and a reexamination of types at home and 

 abroad, many of the difficulties are removed 

 and misapprehensions are corrected. A clear 

 Key distinguishes the species recognized by 

 the author. The geographical range of each 

 is minutely recorded by citation of specimens 

 examined in the preparation of the paper. 



LOVERS OF HORTICULTURE will 

 appreciate the artistic beauty and faith- 

 fulness of the plates, which present in a most 

 attractive form members of the orchid fam- 

 ily — a group which has always held first 

 place in the esteem of those whose delight 

 is to grow rare and beautiful plants. The 

 curious habit and mode of life of some of 

 the orchids depicted, e. </., Campylocentrum 

 and Dendrophylax, both from southern 

 Florida — will be interesting to those who 

 already know something of orchid life, but 

 whose observation has been confined to the 



