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Asteraceae
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Porophyllum
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Porophyllum ruderale
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Porophyllum ruderale subsp. macrocephalum
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Porophyllum
ruderale
subsp.
macrocephalum
(DC.) R.R. Johnson
Published In:
University of Kansas Science Bulletin 48(7): 233. 1969. (
Univ. Kansas Sci. Bull.
)
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Name
Reference
IPCN Reference
Gametophytic Count
Sporophytic Count
Country
Porophyllum ruderale subsp. macrocephalum (DC.) R.R. Johnson
Ward, D. E. & R. Spellenberg. 1988. Chromosome counts of angiosperms from New Mexico and adjacent areas. Phytologia 64: 390–398.
88-89
11
Porophyllum ruderale subsp. macrocephalum (DC.) R.R. Johnson
Keil, D. J. & T. F. Stuessy. 1975. Chromosome counts of Compositae from the United States, Mexico and Guatemala. Rhodora 77: 171–195.
75-78
11