Zobrazeno 1 - 10
of 84
pro vyhledávání: '"Douglas Houghton Campbell"'
Autor:
Douglas Houghton Campbell
Publikováno v:
Annals of Botany. :1-20
Autor:
Douglas Houghton Campbell
Publikováno v:
The American Naturalist. 66:481-510
Autor:
Douglas Houghton Campbell
Publikováno v:
The American Naturalist. 42:732-742
Autor:
Douglas Houghton Campbell
Publikováno v:
The American Naturalist. 32:597-600
Autor:
Douglas Houghton Campbell
Publikováno v:
The American Naturalist. 17:10-15
Autor:
Douglas Houghton Campbell
Publikováno v:
The American Naturalist. 36:7-12
THERE is still a difference of opinion among botanists as to the relationship between the two great divisions of angiospermous plants, monocotyledons and clicotyledons. The two groups have evidently been derived from a common stock, but which branch
Autor:
Douglas Houghton Campbell
Publikováno v:
The American Naturalist. 46:684-695
Autor:
Douglas Houghton Campbell
Publikováno v:
Annals of Botany. :103-118
Autor:
Douglas Houghton Campbell
Publikováno v:
The American Naturalist. 45:41-53
THE POssibilitV of hybrids arising as the result of gr--afting long has been a mooted point and the subject has given rise to much discussion. The lhistor-y of the small number of graft-hybrids thlat have hitherto been recorded is small and is not as
Autor:
Douglas Houghton Campbell
Publikováno v:
Annals of Botany. :489-510