PhytoKeys,
Год журнала:
2023,
Номер
230, С. 145 - 156
Опубликована: Авг. 7, 2023
Thrixspermumtaeniophyllum
is
described
as
a
new
orchid
species
from
Wenchuan
County,
Sichuan
Province
of
southwest
China.
It
morphologically
similar
to
T.japonicum,
but
it
differs
the
latter
in
having
branched
stems,
slightly
fleshy
strap-shaped
leaves,
longer
inflorescences
with
3-6
flowers
and
capitate
gynandrium
lip-shaped
mouth
opening.
Its
status
also
supported
by
molecular
phylogenetic
analyses,
based
on
nuclear
ribosome
internal
transcribed
spacer
(nrITS)
three
chloroplast
DNA
fragments
(matK,
psbA-trnH
trnL-F),
which
showed
distinct
systematic
boundaries
most
T.japonicum
their
morphological
relatives
T.saruwatarii
T.pygmaeum.
Forest Ecosystems,
Год журнала:
2023,
Номер
10, С. 100117 - 100117
Опубликована: Янв. 1, 2023
Global
biodiversity
loss
and
mass
extinction
of
species
have
raised
serious
global
concerns,
especially
in
fragile
ecosystems.
Karst
forest,
a
well-known
ecosystem,
is
served
as
natural
laboratory
for
biogeographical,
ecological,
evolutionary,
taxonomic
research.
However,
richness
distribution
patterns
karst
forests
largely
remain
unclear.
Orchidaceae
has
been
regarded
the
"flagship"
group
plant
diversity.
In
this
study,
we
use
Wanfengshan
Nature
Reserve
southeast
Yunnan,
China,
model
to
determine
conservation
status
orchids
forest
by
conducting
systematic
field
surveys
past
three
years
from
2019
2022.
total,
identified
78
orchid
35
genera
Reserve.
The
dominant
were
Bulbophyllum
andersonii,
Eria
coronaria,
Nervilia
mackinnonii
Paphiopedilum
micranthum.
Multiple
life
forms
also
observed,
including
epiphyte
(14.29%),
facultative
(18.18%),
lithophyte
(23.38%),
terrestrial
(44.15%).
Orchid
showed
bimodal
pattern
varied
with
altitude,
higher
was
recorded
at
1,500–1,600
1,200–1,300
m,
while
minimum
below
1,100
m.
Each
independent
hill
rich
'endemic'
species.
A
total
25
(33.8%)
considered
threatened
Redlist
Chinese
Vascular
Plants
(Qin
et
al.,
2017),
3
CR
species,
5
EN
17
VU
We
call
more
research
addressing
mechanisms
ecological
adaption,
mycorrhizal
interactions,
pollination
forests,
effective
ways
recovery
orchids.
Biodiversity Science,
Год журнала:
2021,
Номер
29(12), С. 1577 - 1582
Опубликована: Янв. 1, 2021
Aims:Recently,
the
List
of
National
Key
Protected
Wild
Plants
has
been
updated
after
a
long
intermission
since
its
first
version
issued
22
years
ago.In
this
paper,
we
illustrated
necessity,
urgency,
principle,
and
process
updating
(LNKPWP).Methods:
We
reviewed
situation
plant
conservation
in
China
last
two
decades
Plants.Results:
During
decades,
increase
human
population
economy
had
deep
effect
on
diversity
China.Thirty
species
higher
plants
were
assessed
as
Extinct
or
Anatolian Journal of Botany,
Год журнала:
2025,
Номер
9(1), С. 51 - 54
Опубликована: Фев. 15, 2025
In
this
study,
the
potential
effects
of
Ceratobasidium
sp.
fungus
on
ex
vitro
symbiotic
germination
Dactylorhiza
osmanica
(Klinge)
P.
F.
Hunt
&
Summerh
subsp.
seeds
were
evaluated.
Results,
caused
that
about
51.95%
rate
was
obtained
in
inoculated.
Protocorm
and
primordium
formation
rates
determined
to
be
25.27%
26.67%,
respectively.
These
findings
indicate
promotes
seeds.
seed
D.
shows
effect
Longer
term
more
detailed
studies
should
conducted
reach
adult
plants
adapt
natural
conditions.
are
very
promising
for
protecting
endemic
rare
orchid
species.
Plants,
Год журнала:
2025,
Номер
14(9), С. 1396 - 1396
Опубликована: Май 6, 2025
Cymbidium
are
endangered
and
ornamental
orchids,
the
taxonomy
species
identification
of
this
genus
have
been
debated
due
to
some
overlapping
morphological
features
between
taxa
limited
data
being
available.
The
leaf
morpho-anatomy
12
from
China
was
investigated
using
light
microscopy
paraffin
sectioning.
Based
on
a
comparative
analysis,
that
varied
were
selected
used
for
taxonomic
differentiation
as
follows:
(1)
shape
structure
leaves
could
be
delimitation.
(2)
Microscopic
characteristics
show
lacked
trichomes
displayed
polygonal
rectangular
epidermal
cells
both
surfaces,
with
larger
adaxial
more
abaxial
stigmata.
Stomata
mostly
distributed
only
side,
but
sides
in
mastersii,
which
exhibited
rare
amphistomatic
type.
stomatal
complex
uniformly
tetracytic
11
species,
while
it
observed
anomocytic
C.
floribundum.
(3)
Anatomically,
two
distinct
midrib
configurations
identified,
shallow
V-shape
V-shape.
mesophyll
homogeneous
10
exception
layer
parenchyma
resembling
palisade
occurring
lancifolium
qiubeiense.
thickness
cuticle
surface
covered
by
thicker
than
displaying
either
smooth
or
corrugated
surface.
A
fiber
bundle
six
absent
other
six.
In
former
group,
occurred
adjacent
mastersii
hookerianum,
epidermis
four
species.
stegmata,
conical,
spherical
silica
bodies,
associated
bundles
seven
five
(C.
kanran,
defoliatum,
floribundum,
lancifolium,
serratum).
Three
kinds
crystals
namely
terete
bundle,
long
tube
raphide.
(4)
It
suggested
these
variable
delimitation
Cymbidium.
addition,
key
based
their
morpho-anatomic
proposed,
lead
better
understanding
conservation
Orchidaceae.
Plant Diversity,
Год журнала:
2022,
Номер
45(2), С. 211 - 218
Опубликована: Сен. 6, 2022
The
Orchidaceae,
which
is
one
of
the
most
interesting
families
angiosperms,
contains
a
large
number
rare
species.
Despite
their
acknowledged
importance,
little
attention
has
been
paid
to
study
orchids
distributed
in
northern
territories.
In
this
study,
we
determined
syntaxonomical
diversity
and
ecological
parameters
orchid
habitats
two
Europe's
largest
protected
areas,
Pechoro-Ilychsky
Reserve
Yugyd
Va
National
Park
(northeastern
European
Russia),
then
compared
our
findings
those
other
parts
distribution
ranges.
For
purpose,
studied
345
descriptions
plant
communities
(releves)
containing
species
from
Orchidaceae
defined
habitat
using
Ellenberg
indicator
values
with
community
weight
mean
approach,
nonmetric
multidimensional
scaling
(NMS),
relative
niche
width.
We
found
that
were
eight
types
97
associations.
forest
communities.
Half
under
occur
mires
rock
open
vegetation.
Several
consistently
areas
disturbed
by
human
activity.
addition,
indicates
main
drivers
across
vegetation
are
light
soil
nitrogen.
Our
analysis
some
can
be
classified
as
specialists
confined
relatively
narrow
Urals
(e.g.,
Goodyera
repens,
Cypripedium
guttatum
Dactylorhiza
maculata).
(e.g.
Neottia
cordata
fuchsia)
grow
diverse
parameters.
