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of 127
pro vyhledávání: '"Michael G Simpson"'
Autor:
Michael G. Simpson, Dana A. York
Publikováno v:
PhytoKeys, Vol 247, Iss , Pp 155-172 (2024)
Cryptantha whippleae D.A.York & M.G.Simpson (Boraginaceae) is described as new. This species is currently known to occur in serpentine barrens in the Shasta-Trinity National Forest of Siskiyou County, California, with one outlier population in possib
Externí odkaz:
https://doaj.org/article/c02387ae424a40af9aa3ea2f508ef73c
Publikováno v:
PhytoKeys, Vol 197, Iss , Pp 149-164 (2022)
In an earlier molecular phylogenetic study, a sample of what was originally identified as Cryptantha hispida (Boraginaceae) from Chile, grouped with species of the genus Johnstonella. This sample was subsequently shown not to be C. hispida, but an un
Externí odkaz:
https://doaj.org/article/715b88d019504d57a0af956015cd1aaf
Publikováno v:
PhytoKeys, Vol 181, Iss , Pp 29-47 (2021)
During the preparation of the treatment of the genus Cryptantha Lehmann ex G. Don for South America, numerous names were identified as needing typification to stabilize their nomenclature. As a result, lectotypes are designated for 11 names and secon
Externí odkaz:
https://doaj.org/article/5b4a734afded4240aabb5f80e1e78953
Autor:
Michael G. Simpson
Plant Systematics is a comprehensive and beautifully illustrated text, covering the most up-to-date and essential paradigms, concepts, and terms required for a basic understanding of plant systematics. This book contains numerous cladograms that illu
Autor:
Michael G. Simpson, LeRoy Gross
Publikováno v:
Madroño. 70
Autor:
Michael G. Simpson, Ron Vanderhoff, James Bailey, Fred Roberts, Margaret Mulligan, Jon P. Rebman, Neville Walsh, Marinda Koekemoer
Publikováno v:
Madroño. 69
Autor:
Jon P. Rebman, Michael G. Simpson
Publikováno v:
Madroño. 69
Publikováno v:
Phytotaxa. 425:279-289
Based on a previous molecular phylogenetic analysis, Cryptantha, an herbaceous plant genus of the family Boraginaceae, subtribe Amsinckiinae, was split into five genera: Eremocarya, Greeneocharis, Johnstonella, Oreocarya, and a reduced Cryptantha, th
Autor:
Michael G. Simpson, Jon P. Rebman
Publikováno v:
Madroño. 68
Cryptantha arenophila Rebman & M.G.Simpson (Boraginaceae) is described as new. This species is restricted to sandy dunes near San Quintin, Baja California, Mexico and adjacent coastal regions. It is similar to the more common Cryptantha patula Greene
Autor:
Jon P. Rebman, Michael G. Simpson
Publikováno v:
Phytotaxa. 509
A review of the species Cryptantha maritima (Boraginaceae) supports the continued recognition of the three varieties, these differing in corolla size, ovule and nutlet number, and calyx vestiture. Mapping of these taxa from verified specimens demonst