Salacia vellaniana Udayan, Yohannan & Pradeep (Celastraceae), a new species from India
Author
Udayan, Punnakkal S.
Department of Botany, Sree Krishna College, Ariyannur P. O., Guruvayur - 680 102, Thrissur, Kerala, India.
psudayan@rediffmail.com
Author
Yohannan, Regy
Department of Botany, Sree Narayana College, Kollam, Kerala, India.
Author
Devipriya, Madhavanpillai S.
Department of Botany, Sree Narayana College, Kollam, Kerala, India.
Author
Devipriya, Vijayavalli
Department of Botany, Sree Narayana College, Kollam, Kerala, India.
Author
Pradeep, Ayilliath K.
Calicut University Herbarium, Department of Botany, University of Calicut, Kerala- 673 635, India.
text
Candollea
2013
2013-07-01
68
1
147
149
journal article
20786
10.15553/c2013v681a20
6dd22ddb-0710-4698-9ba0-222a884aa90a
2235-3658
6039481
Salacia vellaniana
Udayan, Yohannan & Pradeep
,
spec. nova
(
Fig. 1
).
Typus:
INDIA
.
Kerala
:
Thrissur
district,
Vellanipacha
,
540 m
,
in semi-evergreen forests
,
26.II.2011
,
Udayan
S
005
(
holo-
:
CALI
;
iso-
:
MH
,
SKC
,
SNCH
)
.
Salaciae macrocarpae affinis a qua imprimis differt ramulis junioribus laevigatis rubriginosis, foliis minoribus, oblongis, coriaceis, integris, petiolis brevibus,
4-6 mm
longis, floribus paucioribus (1-8), cymis, corollae lobis et disco flavovirentibus, antheris 3-4, fructibus echinulatis pallide rubro-aurantiacis.
Straggling
shrubs;
young branchlets smooth, brownish.
Leaves
oblong, 6.3-11.1 ×
2.6-3.6 cm
, apex acuminate, base cuneate or attenuate coriaceous, margin entire, venation semicraspedodromous; petiole
0.4-0.6 cm
long.
Flowers
1-8, cauliflorous cyme in simple fascicles from axillary or extra-axillary branches; pedicel
0.5 cm
long.
Calyx lobes
5, triangular ovate, brown, ca.
0.5 cm
long, much shorter than the petals, margin fimbriate.
Corolla lobes
5, oblong-lanceolate, 0.15 ×
0.2 cm
, green with a tinge of yellow towards the upper margins.
Disc
green turning creamy yellow, 0.1 ×
0.2 cm
, conical, tapering towards style.
Anthers
3, rarely 4, discoid, creamywhite with a brown tinge; filaments slightly tri-radiate, creamywhite when young, but yellow with orange tinge later.
Ovary
superior, 3-loculed; ovules
1 in
each locule; stigma simple umbonate, pale green.
Fruits
globose or obovate, 2.5-3.5 ×
1.5-2.5 cm
, tuberculate, pale reddish-orange.
Seeds
3, ellipsoid, slightly angular, immersed in pulp, 1-1.5 ×
0.5-1.2 cm
.
Distribution and habitats. –
Known only from the type locality, Vellanipacha in Thrissur district of Kerala.
Salacia vellaniana
is restricted to semi-evergreen forests at an altitude of
540-550 m
. It is rather rare and sparsely distributed along the hill tract with trees species such as
Diospyros crumenata
Thwaites
(Ebenaceae)
,
Drypetes oblongifolia
(Bedd.) Airy Shaw
(Euphorbiaceae)
and
Hunteria zeylanica
Thwaites
(Apocynaceae)
.
Two plants have been located in the study area and, despite frequent searches along the hills and neighborhoods, no other individuals of this species have been found.
Etymology.
– The species is named after Vellanipacha, one of the floristically rich regions along the Western Ghats of southern India.
Flowering & fruiting.
– February-July.
Taxonomical notes.
– This straggling shrub is allied to
S. macrosperma
Wight
from which it differs particularly by the smooth brownish young branchlets, smaller, oblong, coriaceous entire leaves, vs larger, narrow oblong serrated leaves, short,
4-6 mm
long petioles vs longer petioles (
10-15 mm
); few (1-8) flowered cymes, vs many (22-30) flowered cymes; pale yellow corolla lobes and disc, green corolla lobes green turning brown towards margins; disc green turning creamy yellow later vs green with only a slight tinge of yellow; 3-4 anthers vs 3 anthers and pale reddish-orange echinulate fruits, vs larger dark reddish smooth fruits.
Other specimen examined.
–
INDIA
.
Kerala
:
Thrissur
district,
Vellanipacha
,
540 m
,
15.I.2011
,
in semi-evergreen forests
,
Udayan
0S002
(
SKC
,
SNC
,
CALI
)
.