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Norske bjørnebær 6. Sørlandsbjørnebær Rubus ”firmus”

Arnstein Lye, Kåre and Ryde, Ulf LU orcid (2021) In Blyttia: norsk botanisk forenings tidsskrift 79(1). p.39-45
Abstract

Rubus "firmus" is a very rare plant in Norway; it is only known from a 500 m long coastal strip nearthe sea- shore in Grimstad, Aust-Agder fylke. The identity of the name R. firmus is obscure, and it is not known whether the original plant is a species or a hybrid; we do not accept this name as correct for the Norwegian plant. The Norwegian plants are not very homogeneous and have the chromosome number 2n = 42. We believe they are the primary hybrid between Rubus caeslus and probably R. norvegicus. This hybrid is abundantly fertile and produces the earliest mature fruits of any Norwegian blackberries.
Please use this url to cite or link to this publication:
author
and
organization
alternative title
Norwegian blackberries 6. Rubus "firmus"
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Rubus firmus, Rubus norvegicus x caesius
in
Blyttia: norsk botanisk forenings tidsskrift
volume
79
issue
1
pages
7 pages
publisher
Naturhistorisk museum
ISSN
0006-5269
language
Norwegian
LU publication?
yes
id
30e77401-3b05-4e7e-a132-d6dfa7674103
date added to LUP
2022-01-22 09:24:50
date last changed
2022-01-28 02:22:08
@article{30e77401-3b05-4e7e-a132-d6dfa7674103,
  abstract     = {{<br/>Rubus "firmus" is a very rare plant in Norway; it is only known from a 500 m long coastal strip nearthe sea- shore in Grimstad, Aust-Agder fylke. The identity of the name R. firmus is obscure, and it is not known whether the original plant is a species or a hybrid; we do not accept this name as correct for the Norwegian plant. The Norwegian plants are not very homogeneous and have the chromosome number 2n = 42. We believe they are the primary hybrid between Rubus caeslus and probably R. norvegicus. This hybrid is abundantly fertile and produces the earliest mature fruits of any Norwegian blackberries.}},
  author       = {{Arnstein Lye, Kåre and Ryde, Ulf}},
  issn         = {{0006-5269}},
  keywords     = {{Rubus firmus; Rubus norvegicus x caesius}},
  language     = {{nor}},
  month        = {{04}},
  number       = {{1}},
  pages        = {{39--45}},
  publisher    = {{Naturhistorisk museum}},
  series       = {{Blyttia: norsk botanisk forenings tidsskrift}},
  title        = {{Norske bjørnebær 6. Sørlandsbjørnebær <i>Rubus ”firmus”</i>}},
  volume       = {{79}},
  year         = {{2021}},
}