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Phalaenopsis
pallens (Rchb.f. 1864)
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Pale Phalaenopsis
(from latin pallens)
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Distribution
: Philippines
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Synonyms
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Trichoglottis
pallens (Lindl. 1850)
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Stauropsis
pallens (Rchb.f. 1860)
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Phalaenopsis
lueddemanniana var.pallens (Burb. 1882)
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Phalaenopsis
foerstermanii (Rchb.f 1887)
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Phalaenopsis
denticulata (Rchb.f. 1888)
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Phalaenopsis
mariae var.alba (Ames & Quis.1935)
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Polychilos
pallens (Shim 1982)
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Epiphytic
plant with short stem, completely enclosed by imbricating leaf-sheaths.
Roots many, fleshy, flexuous, glabrous.
Leaves flrshy, pendant, elliptic or obovate,
apex round or obtuse, often unequally bilobate, long of more than 18 cm,
broad 6 cm.
Flower stalk thin, more or less as long than the
foliage. Rachis in zigzag, few flowered.
Bracts triangular-ovate, concave, acute, of 4 mm. |
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Flower from
4 to 5 cm with well spread out segments. Oblong-elliptic, acute
or obtuse sepal dorsal, dorsally carinate, mucronate. Lateral sepals
similar to the dorsal sepal, slightly broader. Petals identical
to the dorsal sepal, a little smaller. Lip
3-lobed, shorter than the petals. Lateral lobes oblong-ligulate
with truncated apex, provided in their middle of a callus in shape
of half moon. Midlobe at narrow base, ovate, obtuse, irregularly
notched at apex. Presence of a membranous median keel continuing
with a hairy zone then by a callus glabrous and fleshy at apex.
Disc between midlobes provided of a pair of callus bifides superimposed.
The former callus being located at the junction of the midlobe and
lateral lobes.
Column slightly arcuate, fleshy, widened
at base, long 8 mm.
Pedicellate ovary of 2 cm long.
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Lip of Phalaenopsis
pallens (Sweet)
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Observations
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Flowering begins
in summer to continue lengthily in autumn.
The color varies lemon-yellow to yellow
greenish and yellow corn. Sepals and petals marked of transverse lines
and spots brown/red or cinnamon. White lip with a yellow or yellow/orange
callus on the lateral lobes.
He grow since the sea level until an altitude
of 450 meters. In spite of its facility of culture, Phalaenopsis pallens
remains rare in collections.
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Historique
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The first
description with an erroneous name of genus is given by Lindley who start
from a badly preserved specimen.
First Phalaenopsis pallens to be flowered in Europe did it in the greenhouses
of the Duke of Devonshire in 1849.
Some additional words from Rolfe in
the Orchid
Review
N°152 august 1905. See also Phal.denticulata on the same page
and Phal.foestermanii two pages later. Some
years before, in november 1900 and in the same review, an other article
from rolfe, speak also about
Phalaenopsis pallens.
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Botanical
varieties
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Phalaenopsis pallens var.alba ( Sweet 1969)
Synonym : Phalaenopsis mariae var.alba (Ames & Quis. 1935)
Characterized especially by the absence of
pronounced marks on the segments. |
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Phalaenopsis pallens var.denticulata ( Rchb.f
Sweet 1969)
Synonym : Phalaenopsis denticulata (Rchb.f 1888)
White/cream, and especially, one distinguishes
2 to 3 mauve parallel lines on each side of the central peak of the midlobe.
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Phalaenopsis pallens var.trullifera (Sweet
1969)
Broader floral segments, and lip with
the midlobe very clearly in shape of trowel.
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Lip of Phalaenopsis
pallens var trullifera (Sweet)
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Phalaenopsis pallens (left)
and Phalaenopsis pallens var.trullifera
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Average temperature humidity and pluviometry,
evolution relating to the Philippines on the sea level (area of Puerto
Princesa)
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