Two new records of Jumellea (Orchidaceae) for Mauritius (Mascarene Islands) and their conservation status
Author
Baider, Claudia
Author
Vincent Florens, F. B.
Author
Rakotoarivelo, Fanny
Author
Bosser, Jean
Author
Pailler, Thierry
text
Phytotaxa
2012
2012-04-27
52
1
21
28
http://biotaxa.org/Phytotaxa/article/view/phytotaxa.52.1.3
journal article
5819
10.11646/phytotaxa.52.1.3
6c1acdc6-afbe-48ce-9623-581633ffdc98
1179-3163
5060849
J. exilis
(Cordem.) Schltr.
(
Fig. 1
)
Distribution
:—
Mauritius
,
Réunion
and
Madagascar
Specimens examined:
—
MAURITIUS
.
Mare Longue–Macabé Road
,
11 October 1962
,
Vaughan
s.n.
(
MAU 0002109
) (fr.)
;
Macabé
,
1 November 1962
,
Vaughan
s.n.
, (
MAU
)
;
Macabé
,
12 October 1968
,
Edgerley
s.n.
, (
MAU
)
;
Tamarind Falls
,
21 December 1968
,
Wiehe
s.n.
(
MAU
)
;
Brise Fer
,
2 August 1982
,
Lamusse
s.n.
(
MAU
)
;
Rivière Dimanche–Simonet
,
21 March 1984
,
Lamusse
s.n.
(
MAU 0008290
) (fl., fr.)
;
Mondrain
,
14 June 1996
,
D. Florens
&
D’Argent
s.n.
(
MAU
)
;
Rambouillet
–
La Nicolière
,
400 m
,
6 August 2009
,
20
º
09’ 53” S
,
57
º
36’ 53” E
,
Pynee
et al
.
s.n.
(
MAU 0004857
) (fr.)
;
Brise Fer
,
595 m
,
10 June 2009
,
20
º
22’ 35’’ S
,
57
º
26’ 34” E
,
V
.
Florens
&
Baider
CB 2244
(
MAU 0008274
) (fl.)
;
Le Pouce
, ca.
800 m
,
20
º
11’ 52” S
,
57
º
31’ 43” E
,
24 September 2011
,
V
.
Florens
&
Baider
CB 2523
(
MAU 0009140
) (fl.)
;
s. loc., 1847-52,
Boivin
1055
(
MAU
)
.
Habitat:
—In
Mauritius
: epiphyte in transitional and evergreen forest (
400–650 m
elev.) on canopy trees of
10–18 m
high and lithophytic on micro ledge on steep cliffs at about
800 m
elevation or on large boulders.
Conservation status:
—The species is assessed in
Mauritius
as Critically Threatened CR B1ab(i, ii, iii, iv) + B2ab(i, ii, iii, iv); C2a(i); D as per IUCN red list criteria (
IUCN 2001
).
Phenology:
—In
Mauritius
: flowering in June, September, October, November. Fruiting: October to December.
Notes:
—
Jumellea exilis
has a ramose, creeping stem with non-angled leaves, and oblong labellum. On the other hand,
J. recta
with which it has previously been confused on
Mauritius
, has a non-ramose erect stem with leaves angled above the articulation with the sheath, and a rhombic labellum.