342 PHANEROGAMOUS PLANTS. 



Plate 8. Aster Menziesii ; a flowering branch. Fig. 1. A ray 

 flower. 2. Its style. 3. Hermaphrodite flower. 4. Separated stamen. 

 5. Style. The details magnified. 



4. Aster Novi-Belgii, Linn.? 



Hab. Vicinity of Gray's Harbor, Washington Territory. 



5. Aster Douglasii, Lindl. 1. c. 



Hab. California, on the Sacramento River. — The specimens are 

 varieties of an apparently polymorphous species of the Pacific Coast, 

 of which Lindley's A. Douglasii may be taken as the type, and to 

 which most of his A. laxifolius also belongs. To clear up our Asters 

 requires a special study, and space not here at our disposal. It may 

 here be mentioned that the veritable specimens of A. Douglasii lie in 

 the Candollean herbarium unnamed, and this name is applied in that 

 herbarium to a specimen of Erigeton corymbosum or E. decumbens of 

 Nuttall, from Douglas's collection. 



7. ERIGERON, Linn. 



1. Erigeron (C^enotus) Canadense, Linn. 



Hab. Nisqually, Washington Territory. A depauperate form, San 

 Francisco, &c., California. 



2. Erigeron compositum, Parsli. 



Hab. Kooskooskee, Oregon ; and between the Cascade Mountains 

 and the Upper Columbia River. — This species extends not only to the 

 Arctic Sea but also to Greenland. It probably includes E. trifidum, 

 Hook., and E. pedatum, Nutt. 



3. Erigeron divergens, Nutt. 



Hab. On the Walla- Walla, Oregon. — It has been confounded with 

 E. Bellidiastrum, Nutt., but has a double pappus, &c. 



