Cryptantha
arenophila
Rebman
&
M.G.Simpson
(Boraginaceae)
is
described
as
new.
This
species
restricted
to
sandy
dunes
near
San
Quintín,
Baja
California,
Mexico
and
adjacent
coastal
regions.
It
similar
the
more
common
patula
Greene
in
stem
vestiture,
calyx
morphology,
inflorescence
morphology.
differs
from
that
having
significantly
larger
corolla
limbs
narrowly
oblong
elliptic
leaves
with
obtuse-rounded
leaf
apices,
opposed
linear
lanceolate
acute
obtuse
apices
C.
patula.
In
addition,
nutlets
of
tend
have
numerous
shorter
tubercles,
while
those
tubercles
are
less
dense
larger,
although
variation
this
needs
further
investigation.
The
dune
habitats
where
type
locality
occurs
currently
under
severe
impacts
animal
grazing
off-road
traffic,
necessitating
conservation
these
Three
new
species
of
Cryptantha
from
the
Channel
Islands
southern
California
are
described.
clementina,
endemic
to
San
Clemente
Island,
was
formerly
identified
as
C.
traskiae
I.M.Johnst.
It
is
distinct
that
in
having
a
low,
spreading
growth
habit,
congested
inflorescence
cymules,
wider
corolla
limbs,
thicker
and
more
swollen
midrib
calyx
trichomes,
nutlets
tuberculate
throughout
dorsal
ventral
surfaces.
kinkiensis,
also
previously
intermedia
(A.Gray)
Greene.
differs
bifurcate
cymules
with
denser,
smaller
tubercles.
catalinensis,
Santa
Catalina
either
or
wigginsii
nutlet
apically
low-tuberculate
glabrate
basally,
opposed
densely
(tubercles
“wart-like”
generally
abutted)
glabrous
shiny
basally
wigginsii.
catalinensis
kinkiensis
somewhat
similar
one
another,
but
sculpturing
trichome
size.
We
note
morphological
similarities
some
evidence
for
phylogenetic
relatedness
among
traskiae,
foliosa
(Greene)
Greene,
last
Guadalupe
Baja
California,
Mexico.
point
out
Detailed
molecular
studies
needed
evaluate
evolutionary
biogeographic
history
these
insular
species.
American Journal of Botany,
Год журнала:
2019,
Номер
106(10), С. 1285 - 1299
Опубликована: Сен. 20, 2019
Premise
Distyly,
a
plant
breeding
system
characterized
by
two
floral
morphs
that
have
reciprocal
positioning
of
anthers
and
stigmas,
is
known
from
at
least
27
angiosperm
families,
making
it
an
excellent
example
convergent
evolution.
The
various
manners
in
which
patterns
development
produce
the
distinct
anther
stigma
heights
each
morph
remain
largely
unexplored
developmental
evolutionary
perspectives.
Methods
In
15
species
representing
12
origins
distyly,
lengths
organs
throughout
were
examined
using
light
microscopy.
Patterns
organ
determined
compared
among
species.
Family‐level
phylogenies
distylous
relatives
reconstructed,
ancestral
herkogamy
resolved.
Results
Differences
between
resulted
leading
to
positions
characterizing
distyly.
Distylous
evolved
ancestors
with
different
types
herkogamy,
approach
lack
resolved
most
frequently.
Conclusions
Seven
are
only
one
species,
three
other
described
pairs
close
relatives.
common
pattern
development,
seven
genera,
involves
for
heights,
intermorph
growth
rates
differ
during
later
development.
This
subclass
Lamiidae,
suggesting
canalized
within
taxon.
Among
same
type
can
give
rise
PeerJ,
Год журнала:
2021,
Номер
9, С. e11848 - e11848
Опубликована: Авг. 25, 2021
High-throughput
sequencing,
when
combined
with
taxonomic
expertise,
is
a
powerful
tool
to
refine
and
advance
classification,
including
at
the
species
level.
In
present
work,
new
species,
Plantago
campestris
,
described
out
of
P.
commersoniana
complex,
based
on
phylogenomic
morphological
evidence.
The
main
characters
that
distinguish
from
are
glabrous
posterior
sepals
slightly
broader
leaves.
known
only
three
localities,
all
in
natural
high-elevation
grasslands
Paraná
Santa
Catarina
states,
southern
Brazil.
According
IUCN
criteria
should
be
assessed
as
Endangered
(EN).
We
field
photographs
related
we
provide
an
identification
key
previously
included
within
circumscription
.
Cryptantha
arenophila
Rebman
&
M.G.Simpson
(Boraginaceae)
is
described
as
new.
This
species
restricted
to
sandy
dunes
near
San
Quintín,
Baja
California,
Mexico
and
adjacent
coastal
regions.
It
similar
the
more
common
patula
Greene
in
stem
vestiture,
calyx
morphology,
inflorescence
morphology.
differs
from
that
having
significantly
larger
corolla
limbs
narrowly
oblong
elliptic
leaves
with
obtuse-rounded
leaf
apices,
opposed
linear
lanceolate
acute
obtuse
apices
C.
patula.
In
addition,
nutlets
of
tend
have
numerous
shorter
tubercles,
while
those
tubercles
are
less
dense
larger,
although
variation
this
needs
further
investigation.
The
dune
habitats
where
type
locality
occurs
currently
under
severe
impacts
animal
grazing
off-road
traffic,
necessitating
conservation
these
