Lesson 3: Species in the environmental complex

Three ecotypes (subspecies) of Potentilla glandulosa and their appearance in
each of the transplant gardens
Ecotype
Nevadensis
• Photos along the diagonal
show the species as it
grows at its native site.
• All of the populations were
shown to be interfertile.
reflexa
• They concluded, as
Turesson did, that species
are really composed of
genetically distinct groups
of ecotypes which are best
suited their specific
environment.
typica
Fig. 3-6 from Barbour et al.