CCDBAngiospermsCompositaePorophyllumPorophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson

14 chromosome counts in Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson:


Name Accepted Name Gametophytic(n) Sporophytic(2n) Data Source reference
  Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson 11(1)   Asteracea Keil & S. 1975 Rhodora
!   Porophyllum ruderale subsp. macrocephalum Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson 11(1)   Asteracea Ward & S. 1988 Phytologia
!   Porophyllum ruderale subsp. macrocephalum Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson 11II(1)   Asteracea Strother 1983 Amer. J. Bot.
  Porophyllum macrocephalum DC. Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson 11(1)   Asteracea Turner & F. 1966 Amer. J. Bot.
!   Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson 11(1)   Asteracea Johnson 1969 Univ. Kansas Sci. Bull.
  Porophyllum ruderale var. macrocephalum (DC.) Cronquist Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson 11II   IPCN online Strother, J. L. 1983. More chromosome studies in Compositae. Amer. J. Bot. 70(8): 1217–1232.
  Porophyllum ruderale var. macrocephalum (DC.) Cronquist Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson 11   IPCN online Keil, D. J. & D. J. Pinkava. 1976. Chromosome counts and taxonomic notes for Compositae from the United States and Mexico. Amer. J. Bot. 63: 1393–1403.
!   Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson 11   IPCN online Ward, D. E. & R. Spellenberg. 1988. Chromosome counts of angiosperms from New Mexico and adjacent areas. Phytologia 64: 390–398.
!   Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson 11   IPCN online Keil, D. J. & T. F. Stuessy. 1975. Chromosome counts of Compositae from the United States, Mexico and Guatemala. Rhodora 77: 171–195.
  Porophyllum macrocephalum DC. Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson 11   IPCN66 Turner & Flyr 1966
  Porophyllum macrocephalum DC. Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson 11   IPCN67-71 POWELL, A.M. & s. SIKES. 1970. Chromosome numbers of some chihuahuan desert Compositae. Southw. Naturalist 15: 175-186.
!   Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson   22 IPCN73-74 JOHNSON, R.R. 1969. Monograph of the plant genus Porophyllum (Compositae: Helenieael Univ.~Kansas Sci. Bull. 48: 225 267.
!   Porophyllum ruderale var. macrocephalum (DC.) Cronquist Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson   22 eFlora  
  Porophyllum macrocephalum DC. Porophyllum ruderale subsp. macrocephalum (DC.) R. R. Johnson   22 Fedorov, 1974 Turner, Flyr 1966