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Phalaenopsis
bastianii (Gruss & Röllke. 1991)
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Bastian's Phalaenosis
(Röllke's son)
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Distribution
: Philippines (Sulu)
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Synonyms
Phalaenopsis
deltonii ( Gruss & Röllke 1991)
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Phalaenopsis
lueddemanniana var.deltonii (Hort)
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Epiphytic
plant , very variable, robust.
Stem short, completely enclosed by imbricating
leaf-sheaths.
Roots long, numerous, fleshy, glabrous,
flexible, green at the end.
Many leaves, until 10, fleshy or leathery,
oblong-ovals or elliptic-oblong, acute or obtuse, from 15 to 23 cm long
on 5 to 7 cm abroad, keel at the lower face.
Flower stalk arched, green, longer
than the foliage, simple or branching.
Bracts oval, cucullate, acute, of 5
mm.
Flowers with largely spread out
segments of 3,5 cm to 4 cm. Oblanceolate, acute, slightly ducted dorsal
sepal. Lateral sepals obliquely oval, also ducted dorsaly, canaliculate
at the apex, acute, once and half broader than the dorsal sepal. Petals
identical to the dorsal sepal with a light contracting close to the base,
acute or sub-obtuse. |
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3-lobed lip, twice shorter than the petals. Lateral lobes erect,
subquadrangular, with bidentate truncated apex, presenting a thickening
in their medium. Midlobe oval or sub-rhomboid, decorated of a prominent
fleshy keel , concave on the lower part. The top of the hull is
notched subsequently then ends in a hairy callus. The edges of the
median lobe are notched or eroded on both sides apex. The disc with
at junction of the lateral lobes is decorated of an excavated triangular
callus presenting before a double and short indentation. At the
junction of the lateral lobes with median lobe is located an other
callus forked projected forwards on both sides of the starter of
the hull .
Column fleshy, erect of
4 mm.
Pedicellate ovary approximately
2/3 cm.
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Observations
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Sepals
and petals cream colored, more or less yellowish, barred and mackled transversely
mahogany or of brown red. The base of the lateral sepal is generally decorated
of a broad macula.
The column is mauve on two thirds
of its length. Mauve Lip with the callus decorating lateral lobes yellow.
Flowering mostly in spring.
Nevertheless, one can find plants more or less flowered almost all the
year.
The flower may somewhat be confused
with Phalaenopsis maculata . But the color and the absence of pilosity
on the midlobe of lip of this one makes possible to distinguish them easily.
Phalaenopsis bastianii can also be confused with Phalaenopsis mariae.
Lateral lobes of this last are with notched apex, whereas they are emarginate
for Phalaenopsis bastianii. The shape of the midlobe is also different,
more oval for Phalaenopsis mariae. The floral segments are revolutate
in Phalaenopsis mariae. Lastly, floral stalk are hanging for Phalaenopsis
mariae, and erect for Phalaenopsis bastianii.
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History
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| Named
by Rollke in honor of his son Bastian. The plant was introduced in Europe
in 1980 into a batch of plants which were to be of Phalaenopsis mariae. |
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Average temperature humidity and pluviometry,
evolution relating to the Sulu islands for an altitude of 610 m
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