ERICACEAE. 385 



12. C H I M A P H I L A, Parsh. 



1. Chimaphila umbellata, Ntltt. 



Hab. Puget Sound ; common in forests, as in the Northern Atlantic 

 States. The other and peculiar species, C. Menziesii, was not collected. 



13. M N T R P A, Linn. 

 1. Monotropa uniflora, Linn. 



Hab. Washington Territory, in forests, usually not far from the 

 seacoast. Newly found in the Pacific region and not since met with. 



2. Monotropa Hypopitys, Linn. 



Hab. Cascade Mountains, Washington Territory. — Variable in color 

 and pubescence as in the eastern plant. 



14. PTEROSPORA, Mat. 

 1. Pterospora Andromedea, Nutt. 



Hab. Open woods, Oregon and northern part of California. 



15. ALLOTROPA, Torr. & Gray, Nov. Gen. 



Calyx bibracteolatus, b-sepalus {sepal-is lato-ovatis) , persistens. Corolla 

 nulla. Discus fere null its. Stamina 10, glabra : filamenta fili- 

 formia : antJierce breves, bilobce, fere basifixce extrorsce, mox introrsum 

 inversce pendulae; loculis rima longitudinali usque ad medium hiante 

 dehisce) dibits. Ovarium globosum, b-loculare : stylus brevissimus post 

 anthesin elongandus : stigma capitatum, depressum, amplum. Semina 

 numerosissima in placentis axilibus crassis, linearia, nucleo centrali 

 parvo. — Rhizopliytum pallidum seu rubellum, carnosum, glabrum, 



97 



