The name of this new Paphiopedilum is dedicated to
Mr. Mitsuru SUGIYAMA who discovered it with Mr. ABAS, two orchid
Classification : P. sugiyamanum belongs to the
subgenus Paphiopedilum and the section Barbata.
This species has much affinity with P. dayanum (Lindley)
Stein, P. javanicum var. virens (Rchb. f.), P.
hennisianum (M. W. Wood) Fowlie and P. lawrenceanum
(Rchb. f.) Pfitzer.
The geographical localisation : The geographical distribution
of this new species is not yet known. M. Sugiyama and M. Abas
pointed out that this new Paphiopedilum has been found
in north-eastern Borneo, in Sabah State, Malaysia. The altitude
was not indicated.
Description : Terrestrial plant.Leaves : 3-5, greyish
green, tessellated deeper green on upper surface, pale green
below, elliptic-oblong, tridenticulate at apex, 11-14 cm long
and 3.1-3.4 cm wide.
Inflorescence : 1-flowered, erected, purple pubescent,
30-35 cm long.
Bract : conduplicate, green, finely white pubescent on
margins, elliptic-oblong, acute at apex, 2.4-2.6 cm long and
1-1.2 cm wide.
Pedicel and ovary : dark brown, purple pubescent,
5.8-6.2 cm long.
Flower : 9-9.5 cm across.
Dorsal sepal : pale green, veined darker green, concave,
ovate, acute or shortly acuminate, with incurved margins at apex,
3.8-4.3 cm long and 3.4-3.6 cm wide.
Synsepal : pale green, veined darker green, concave, oblanceolate,
ciliated on outer surface, 3.3-3.7 cm long and 1.5-1.7 cm wide.
Petals : pale green, spotted with dark brown, ciliated
on the margins, oblong, more or less horizontal, recurved, purple
ciliated on the margins, sparsely ciliated at base on the inner
surface, acute at apex, 4.5-4.8 cm long and 1.5-1.7 cm wide.
Lip : green, flushed and striated with brown, trilobed,
shaped like an inverted helmet, rounded at apex, 3.8-4 cm long
and 2.6-2.8 cm wide. Side lobes incurved bearing raised brownish
warts on outer surface.
Staminode : reticulated with green and brown, convex,
subcircular to reniform (kidney-shaped), white pubescent, forming
2 lobes separated at base, 0.9 cm long et 1 cm wide ; 2 teeth
arcuated and obtuse at apex.
Comparison with other species : Morphologically the closest
species is P. hennisianum (M. W. Wood) Fowlie, from Philippines.
P. sugiyamanum has the same developped dorsal sepal, the
lip shaped in an inverted helmet with the same color. The main
differences are the folowing :
- the petals of P. sugiyamanum are shorter and larger
than those of P. hennisianum and have no warts on margins
; the color is greenish suffused with pale brown at base ;
- the staminode of P. sugiyamanum is convex, reniform
with 2 arcuated teeth (lobes) and obtuse at apex. The staminode
of P. hennisianum is less wide (0.7-1 cm wide), obovate,
3-toothed, auriculate at base with 2 elongate falcate side teeth.
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