248 
Many of tk interesti f the specimens above mentioned 
were exhibited at the Conference. 
{lowing the discussion of this paper Mr. Cecil Yampolsky 
reported on ‘Inheritance in Matthiola with Reference to Double- 
ness and Flower Color.” 
A. B. Stout, 
Secretary of the Conference 
NOTES, NEWS AND COMMENT 
_ A. S. Hitchcock, Systematic Agrostologist, United States 
Department of Agriculture, visited the Garden in November for 
the purpose of studying the West Indian grasses in the Garden 
herbarium 
Mr. W. W. Eggleston, Assistant Botanist, Bureau of Plant 
Industry, United States Department of Agriculture, spent 
several weeks at the Garden in November and December, study- 
ing lupines and other poisonous oa and also making inves- 
tigations on the genus Amelanchi 
A striking example of how plants become introduced through 
the impurity of grass seed is now in evidence near the Garden. 
Last s spring about two acres of newly filled land along the north 
§ 
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3 
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ct 
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ower. umero 
ee (Crepis virens) have also appeared. As neither of these 
species is found in the neighborhood, from which the soil used in 
filling was obtained, it seems conclusive that the introduction 
was through the impurity of the grass seed sown on the area 
Dr. Edward L. Greene, a distinguished botanist, died in 
Washington, D. C., on Nobember 10. He was born in Hopkin- 
