A monograph of the genus Polylepis (Rosaceae)
Author
Boza Espinoza, Tatiana Erika
https://orcid.org/0000-0002-9925-1795
Institute for Nature, Earth and Energy (INTE), Pontificia Universidad Catolica del Peru (PUCP), Av. Universitaria 1801, Lima 15088, Peru
tatianaerika@gmail.com
Author
Kessler, Michael
https://orcid.org/0000-0003-4612-9937
Department of Systematic and Evolutionary Botany, University of Zurich, Zollikerstrasse 107, CH- 8008 Zurich, Switzerland
text
PhytoKeys
2022
2022-08-01
203
1
274
http://dx.doi.org/10.3897/phytokeys.203.83529
journal article
http://dx.doi.org/10.3897/phytokeys.203.83529
1314-2003-203-1
001CD6EE01E8575F81AC9EFDD0599077
Section
Polylepis Australes T.Boza & M.Kessler
sect.nov.
Diagnosis.
Trees, 2-4 lateral leaflet pairs; lower leaflet surfaces glabrous, sparsely hispid or puberulous; fruits with irregular and pronounced wings, glabrous or sparsely hispid.
Type
.
Polylepis australis
Bitter.
Notes.
The sectional epithet
Australes
is a plural adjective agreeing in gender with
Polylepis
. Section
Polylepis Australes
contains two species with glabrous leaflet surfaces, 2-4 lateral leaflet pairs and winged fruits. Especially the latter are unique in
Polylepis
and justify placing the two species in a section of its own. Table
6
provides an overview of the arrangement of the taxa by different authors.
Table 6.
Alignment of the taxa of the
Polylepis sect. Australes
according to
Bitter (1911)
,
Simpson (1979)
,
Segovia et al. (2018)
and the present study.
|
Bitter (1911)
|
Simpson (1979)
|
Segovia et al. (2018)
|
This study |
|
P. australis
|
P. australis
|
P. australis
|
P. australis
|
| - |
- |
P. neglecta
|
P. neglecta
|
Climatic niches in
Polylepis sect. Australes
The climatic niches of the two species are quite similar, but
P. australis
grows in slightly warmer and substantially wetter areas than
P. neglecta
(Fig.
62
). In addition, being the southernmost species of the genus,
P. australis
grows in a strongly seasonal climate with warm summers and cold winters, which is unique in the genus.
Figure 62.
Box plots showing the climatic niches of the species of the subsections
Australes
and
Subsericantes
in relation to MAT (
A
) and MAP (
B
). See Fig.
12
for details on data presentation.