Download (Orchidaceae) dorsiventrally flattened species, occurs widespread

BLUMEA
43
489-494
(1998)
species
New
of Podochilus
A.
Schuiteman
P.O. Box
Rijksherbarium/Hortus Botanicus,
and Trichoglottis
from Borneo
(Orchidaceae)
9514,
2300
Leiden, The
RA
Netherlands
Summary
The
new
Borneo,
the
replace
Key
Podochilus
species
described
are
Podochilus
illegitimate
words:
marsupialis
and illustrated.
The
Schuit.
new
and
name
Trichoglottis
Podochilus
Eu-Podochilus
sect.
tinekeae
Schuit.,
Sarganella
sect.
is
both from
proposed
to
Schltr.
Orchidaceae, Podochilus, Trichoglottis, Sarawak,
Borneo.
Introduction
During
expeditions
recent
to
Sarawak, jointly undertaken by the Rijksherbarium/Hortus
Botanicus, Leiden, and the Sarawak Forest Department, Kuching, living material
collected of several undescribed orchid
species.
Two of these
are
was
described below.
PODOCHILUS Blume
Podochilus is
leaves and
found
to
very few possess
only
be
Podochilus
an
studied genus of
poorly
a
undescribed
columna
cultrato
Lindl.
lateraliter
(Schuiteman,
Mulder
Gg. Selantik,
1° 3'
Podochilus
233
[see
species,
malabaricus
note 3
Stems tufted,
111° 4'
933227
E,
non
500
Wight:
spreading
in
long,
with
adventitious shoots,
c.
1
was
widespread.
1
Fig.
apice integrum, petala lineare-oblonga,
viscidia
2.
—
Typus:
(holo SAR, spirit material;
iso
Leiden
cult.
K, L), Sarawak,
m.
J.J. Wood & P.J.
in all directions, 7-18
contact
not
Cribb,
Checkl.
the
mm
cm
long, rooting
substratum, usually
Orch.
Borneo
densely many-leaved.
6-11
by
at
Leaves
1.5-2
their base,
unbranched,
mm,
(1994)
long.
mm
long,
sometimes
Floral bract
rooting
at their
or
some-
sometimes
bilaterally flattened,
with their
imbricating
articulated, acute-acuminate. Inflorescences
lateral, 1-3-flowered, 3-4
rachis
—
adnata,
narrowly obliquely triangular-subfalcate,
sheathing bases,
flattened
dorsiventrally
in Borneo, where it is
sed labellum
lateralibus
Vogel)
auct.
nov.
Most have
flattenedleaves. One of these, which
below].
times also where
branching by
N,
&
species.
occurs
spec.
similis
sepalis
40
bilaterally
marsupialis Schuit.,
Podochilo
c.
apical,
sometimes
base. Peduncle c.
broadly ovate, abruptly acuminate,
c.
2
1.3
mm
mm
BLUMEA
490
Fig.
sepal
h.
1. Podochilus
and
petal;
ventral
i.
marsupialis
Schuit.
right petal removed);
lip
view;
from
n.
Vogel) 933227].
above; j. lip
anther;
o.
e.
a.
Vol.
Habit; b,
column
from
p.
c.
No.
k.
2,
flower;
and left lateral
below;
pollinarium;
43,
d. flower
sepal;
lip, flattened;
pollinia [all
1998
l.
f.
(dorsal sepal, right
dorsal
column,
from Leiden
cult.
sepal;
dorsal
g.
lateral
view;
m.
(Schuiteman,
lateral
sepal;
column,
Mulder
&
A. Schuiteman:
Flower
long.
sepals
3.1
long,
mm
median adnate
triangular-ovate,
the
midvein. Mentum
tened narrowly obovate, 2.8
at
Column 1.7
2
long, laterally
sepal triangular-ovate,
bifid
0.4
2) incurved,
note
at
the
mm
elongated
long,
each
1
c.
mm
0.5
by
obscurely bilobulate,
mm,
obtuse.
Lip strongly
c.
2.4
long.
mm
Colours
Fruit
in
0.7
mm
two
sepals
for 1
sheath 1
and
Ovary
mm
long.
stelidia absent,
mm,
pairs, obliquely ovoid,
long.
Petals
when flat-
concave,
column-foot
ones;
wide. Anther cucullate,
funnel-shaped
a
mm
a crest
long.
1.2 by 0.5
mm,
somewhat flattened,
mm
viscidia two,
long;
pedicel glabrous, 6-ribbed,
not seen.
Flower white,
—
0.4
long,
mm
extension 0.4
protruding
the lateral
to
1.4
mm,
3-lobed in upper third, apex cucul-
obscurely
backwards
adnate
pair enveloped
1.9
free part
the lateral side of the column, outside with
apex. Pollinia4 in
narrowly lanceolate-oblong,
2.8 by
strongly oblique,
rostellum 3-dentate, the central tooth much shorter than the lateral
(see
491
Trichoglottis
in basal half,
fleshy
a
and
Median
1.4 mm,
by
the base with
mm
to
Podochilus
connate
subglobose,
linear-oblong, slightly oblique,
late, entire,
species of
only slightly opening.
obtuse. Lateral
along
New
sepals
and
petals
apices,
with magenta
apex of lip
deeper
magenta.
Habitat &
Ecology
Distribution
Sarawak:
m,
S.
on
Merah, 700
W. Kutai,
550
Mulder &
Mulder &
m,
m,
Brooke 9182
(SAR);
933227 (Type);
Vogel)
Bah.
932914
Vogel)
130-200
1. Podochilus
by
—
Sarganella.
P. malabaricus Wight)
(among
The
belongs
as
sheaths of the
only
readily distinguished
things).
but differs in
in P.
2. This
are
inconspicuous
column is
laterally
having
regarded
as
an
petals,
are
4. The
column.
was
species
on
Lim
specific epithet
which is
described
far
so
falcatus Lindl.,
called Eu-
proposed
below:
by bilaterally
from Sri
originate
P. saxatilis Lindl. and
their elongated
marsupialis by
emarginate lip
a
appears
adnate to the lateral
based
was
characterized
with
column that is
a
not
to
form
much
longer
as
to
possess
sepals.
I do
a
not
unique
recall
the column-foot is
basal
adnate
laterally
having
seen
at
apthe
and there is
143, f. 93).
character in
probably
to
cultratus the
single stalk,
a
that the
this in any
least in part
to
lip.
3. The Borneo record of Podochilus malabaricus Wight,
Sri Lanka,
that
contain Podochilus lucescens
not
from P.
Sg.
L, sterile).
the section
of these characters after Seidenfaden 1986:
the claw of the
cult.
L); Kal. Timur:
n.v.;
and which has falcate stelidia. In P.
other orchid. What I have described
be
n.v.;
to
a new name,
united above the base
(several
Leiden
m,
The fourth, Podochilus cultratus Lindl., is very similar
marsupialis,
pollinia
viscidium
Leiden cult.
m,
800
Entimau,
of this section
species
much broader, obovate
sepals
one
are
other
marsupialis,
pendage,
Bt.
Schlechter. This section, which does
sect.
500
Kalimantan: Kal. Barat: Serawai,
flattened, non-articulated leaves. All four species
lateral
in
?, Lim Weng Hee 1.26 (K).—
Gg. Selantik,
Endert 2723 (BO
m,
marsupialis
Lanka and/or mainlandAsia. Three of these ( P.
P.
rotting logs
or
Kapit, Batang Balleh, Sg. Mengiong,
Sibu:
(L).
Blume, the type species of Podochilus, requires
Podochilus
to
trunks
tree
Church, Mahyar & Afriastini 2095 (AMES, BO
Long Hut,
—
Podochilus
racemes
large
Borneo. Sabah: Taman Tawau, alt.
(B. Lee) 54538 (SAR);
(Schuiteman,
Notes
—
Ieneong,
(Schuiteman,
350
Gregarious epiphyte
—
forest. Altitude 130-800 m.
primary
Weng
alludes
Hee 1.26, which
to
the
pouch-like
a
belongs
structure
species
to P.
from India and
marsupialis.
formed
by part
of the
492
BLUMEA
Vol.
Podochilus section
here
species,
Note
Eu-Podochilus
sect.
Podochilus
chosen:
The
—
braid,' refers
new
Sarganella Schuit.,
falcatus
proposed here,
name
nom.
9
(1900)
nov.
[nom. illeg.].
—
Lectotype
Lindl.
diminutive of the
a
the habit of these orchids
to
1998
2,
Mem. Herb. Boiss.
Schltr.,
Podochilus
No.
43,
(similar
the
to
Greek
oapyavr|,
orchid
neotropical
'a
genus
Lockhartia, among others).
TRICHOGLOTTIS
tinekeae Schuit.,
Trichoglottis
Habitu
T.
winkleri
J.J. Sm.
satis
K),
Roots
c. 6.5
gracili,
Interior
Sabah,
1-2
mm
long,
2.5-3.5
apex of sheath
plane
Zone,
the
wrinkled,
at
wide
apex of
to
blade of the
to
up
mm,
1
only
mm
one
long.
linear-elliptic
to
crest on
c.
the base, 2
basal
erect
7
by
surrounding
underside in
long,
margins
5.5
a
mm,
shallow
papillose laterally near
pyriform.
Anther
glabrous.
somewhat
thulate,
long.
1.4
Fruit
mm
oblong
5
at
by
7.8
ovate,
forms
lip
a
mm,
one
finely transversely
2-6
mm
long.
the leaf-
opposite
time, subsessile,
terete, curved,
3.8
by
mm,
2
by
mm,
the column,
to
which has
gla-
9
obtuse,
falcate, 8 by
adnate
and which is
at
short median,
a
and
densely
the crest; lateral lobes linear,
slightly
apical half,
on
1.3
(index
lie in
sepal linear-oblong,
long, straight, rigidly
lamella 2.3
to
the shorter lobule
a
long,
mm
Median
obliquely
mm
half connected by
of the
at
the base with
concavity,
mm
long,
apex
very
finely
wide, truncate, porrect, glabrous,
a transverse
septum,
pocket-like cavity
2.3
a
with
at
2.3
two
highly
U-shaped patch
mm
mm
wide near the
glabrous,
high,
which
together
which is covered
spherical
apex,
masses
0.8
margins;
in
hyaline
apical
half
by
cross
mm
to
hairs
crenu-
weakly curved, minutely
stelidia absent, foot absent,
elastic caudicles attached
sharply 3-angular
erect
in
in the middle with
the apex with infolded
in outline,
of soft
broadly rounded, margins
the apex, otherwise
Pollinia 4 in
long,
ovary
cm across.
in the middle0.5
helmet-shaped,
unequal,
flowering
two
5-45
lid; bottom of the cavity densely pubescent; midlobe broadly
a
late. Column slender, 6.5
crest,
1.5
mm
rectangular
mm
the basal lamella like
elliptic,
rarely
sparsely
or
linear
to
so as
almost
linear-oblanceolate, slightly
to
longitudinally along their basal
with the
or
not
appendage
appearing
iso
1986.
apart (measured from
the base 90°
at
subulate
a
Pedicel and
underside in basal half and
on
cm
pro
(holo L;
pendulous,
lanceolate
narrowly
8 from the base of the node,
erect,
an
1-1.5
to
late
columno
1100 m, Dec.
Sie-Long Miau,
the blade with
widely opening,
3-nerved. Petals
pubescent
mediano
1117
obliquely short-bilobulate,
apex
obtuse, 3-nerved. Lip 3-lobed, 8
longitudinal
lobo
excepto,
& Duistermaat
patent, twisted
obtuse, 3-nerved. Lateral sepals
the base with
Pa
blade
sheath),
next
opposite
node below,
brous. Flowers
dilated
Long
mollibus
lobule truncate, mucronate; sheaths tubular,
longer
1-flowered.Peduncle c.
mm,
ecalcaratum,
the sheaths. Leaves
across
6-13
by
cm
the apex
Inflorescences
Vermeulen
Typus:
east of trail
with the stem, coriaceous,
apiculate,
2.4
—
sed labellum
pilis longissimis
the base, somewhat flexuose, terete,
patent
at
mm
4.5-8.5
4.5-11),
longo.
2
Fig.
—
thick, glabrous, sparsely branching. Stems elongated,
branching, rooting
cm
mm
similis,
basali
elliptico integro glabro caespite
genere
nov.
spec.
Blume
a
short
wide, those of
the
stipe,
viscidium
section,
c.
a
pair
the latter spa-
oblong,
20
stigma
transverse
by
7
0.8
mm.
mm
A. Schuiteman:
Fig.
f.
2.
lip;
Trichoglottis
g.
Schuit.
lip, longitudinal section;
j. column;
maat
tinekeae
k.
apex
1117 b—m
,
of column
New
h.
a.
species of
Habit;
base
of
b.
Podochilus
flower;
lip (basal
(anther removed); l. anther;
from Leiden
cult.
(Roelfsema,
dorsal
c.
lamella
m.
and
sepal;
&
d. lateral
pushed back);
pollinia [a
Schuiteman
493
Trichoglottis
sepal;
i. column
e.
petal;
and
lip;
from Vermeulen & Duister-
Vogel) 970292].
BLUMEA
494
Colours
lobe with
and
Sepals
—
large yellow
a
petals
whitish
at
blotches in basal half.
orange-brown
two
Vol.
to
stigma
red. Anther
Habitat &
forest with
on
the apex, with
at
Distribution
1100
Lamb AL
base, yellow
at
(type),
apex
—
Chai 2340
'kerangas', primary
east
—
(L);
K),
at
copy
AL
330/85 (K,
Sarawak: Baram Distr.,
same
area,
Sie-Long Miau,
Rurun headwaters,
Batu
Like
most
particular
T. winkleri J.J. Sm.
species
in the
Highlands,
between Bario and Pa
Berang,
lip
is
in this genus,
Trichoglottis
of appendages
possession
to
apparently
similar
relatively
also different. The flowers
are
to
much
those of T.
tinekeaeis
the
quite
m,
m,
slender, virtually glabrous
and
narrower
column
lip,
are
2. Measurements of the flower are
cultivated in the Hortus
Trichoglottis
retusa
not
the
habit)
hairy throughout,
not
the lateral lobes
hairy
based
on
spirit
ardent supporter of the
study
are
large,
long hairs,
characters of the
diagnostic
exclusively
only helped
trilobulate
of T. tinekeae
stelidia. The
not
almost
and the
species.
new
material from
speci-
Leiden.
tinekeae is named after Mrs. Tineke Roelfsema from
The Netherlands, who
by previous
a
Blume, but in the latter the midlobe of
with its basal tuft of very
Botanicus,
distinctive.
it resembles
leaf-sheaths,
been overlooked
(but
septum, and the column has
a transverse
flat, elliptic midlobe of the spurless
mens
1000
1000
970164 (L), 970292 (L, SAR), 970399
Vogel)
this character has
(where
leaf-tips
superficially
connected by
m,
(L).
1.
midlobe. The
m,
450
seen), AL
photocopy
Kelabit
1700
Ponggol,
authors), which is very differentbecause of the distinctly spurred lip with
an
montane
mossy lime-
on
of trail Long Pa
Sungai
(K, L); Pensiangan Distr.,
Schuiteman &
(Roelfsema,
970476
In habit, in
(sketch,
photocopy seen).
Leiden cult.
3.
of the
purple.
limestone, occasionally lithophytic
Duistermaat 1117 (Type);
Duistermaat 1089
Nooteboom &
the
dorsally
or
margins
violet and the
margins
Borneo. Sabah: InteriorZone,
206/84
815/87 (K,
Notes
—
Vermeulen &
m,
Vermeulen &
are
one or
the apex of the mid-
cliffs. Altitude 450-1700 m.
stone
(L),
at
in open, undisturbed
Epiphyte
—
to
the base,
blotch. Lateral lobes white or orange-
pale orange-brown
and forest
,
yellow
at
Leaves often suffused with
yellow.
Ecology
Agathis
white
orange, with the lateral
ventrally
1998
2,
the base,
Lip
brown, front margin violet. Column greenish
white and
No.
43,
collect material of this
species,
and cultivation of Orchidaceae
at
the
Wageningen,
but who is also
Rijksherbarium/
Hortus Botanicus.
ACKNOWLEDGEMENTS
I
am
most
during my
viding
grateful
information
translated
to the
staff of the Sarawak
visits to Sarawak in
the
on
the
diagnoses
1993,
Kew
Forest
1997 and
collections
into Latin. Above
of
all,
Department, Kuching,
1998.1
am
much
obliged to
Trichoglottis
tinekeae.
I thank
Tineke
Mrs.
Dr.
for their
cooperation
Mr. J.J. Wood for
J.F.
pro-
Veldkamp kindly
Roelfsema for her
generous
support.
REFERENCE
Seidenfaden,
Bot. 89:
G.
1986. Orchid
1-214.
genera
in
Thailand
XIII.
Thirty-three epidendroid
genera.
Opera