• Publications
  • Influence
A Revision of North American Cornaceæ. I
TLDR
Under each species the general range is first given, followed by a list of collectors whose material the authors have examined, as an exhaustive list of stations and collectors is not intended.
The Stem of Ephedra
TLDR
This palm is now cultivated for ornament in many places in California, and has also been introduced into green-house culture in Europe, and the climate seems to be quite agreeable to them, and their culture promises success.
Notes on the Pollination of Helianthus
  • W. H. Evans
  • Environmental Science
    Botanical Gazette
  • 1 August 1891
TLDR
There is much danger of new weeds being introduced with the seeds or roots of plants received from the Patent Office and elsewhere, and those wveeds which give the most trouble are barn grass, rag-weed, purslane and couch or witch grass.
An Undescribed Birch from Alaska
A New Helianthemum
Cornus Baileyi C. & E. in Oregon
  • W. H. Evans
  • Environmental Science
    Botanical Gazette
  • 1 April 1891
TLDR
It is highly probable that forms may be found not so well defined as this one, and the presence of all three of these nearly related species will give more or less trouble when approaching each other, yet the extreme forms should give no cause for difficulty in determination.
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