Finding
SITF has determined this plant to be Acanthophippium curtisii, not A. eburneum (Sep 2024). Drawings of A. curtisii on the IOSPE match this plant better than the A. eburneum drawing. In the "Gardener's Chronicle" the description of A. eburneum is compared with A. curtisii. The differences include: A. eburneum's perianth is ivory-white; that of curtisii is rose-colored; the lip of eburneum is almost unilobed with the side lobes barely resolved from the midlobe; that of curtisii is distinctly trilobed, as is this plant; the crest in eburneum consists of a single, sharp trianglar line while that of curtisii is more complex with five keels. This disk is clearly does not have a single triangular line. Both species are found in Borneo.
Overall Length Of Growth Cane: 42 cm
Number Of Leaves Per Growth Or Cane: 3
Leaf Length: 34 cm
Leaf Width: 8 cm
Leaf Margin: entire
Leaf Shape: lanceolate
Leaf Petiole Length: 10.5 cm
Pseudobulb Length: 8 cm
Pseudobulb Width: 2.5 cm
Pseudobulb Margin: oblong
Pseudobulb Distance: 0.1
Pseudobulb Root Tip: cream
Inflorescence Overall Length: 4 cm
Inflorescence Arrangement: raceme
Inflorescence Dist Base To Bud: 3.3 cm
Inflorescence Dist Bet Flowers: 1 cm
Inflorescence Dist To Sepal: 3.4 cm
Floral Bracts Length: 5.0
Floral Bracts Width: 0.5
Ovary Length: 0.7
Ovary Width: 0.2
Ovary Shape: cylindircal
Ovary Color: violet
Ovary Texture: ribbed
Flower Natural Spread Length: 4.0
Flower Natural Spread Width: 2.6
Dorsal Sepal Length: 4.8
Dorsal Sepal Width: 2.3
Lateral Sepals Length: 4.0
Lateral Sepals Width: 2.8
Judging Center: Northeast Judging Center
Award Number: 20244895
Award Date: September 21, 2024
Awarded As: CBR
Award Description: Five tubular sequential flowers and four buds on two upright inflorescences to 4-cm tall presented on a 10-cm wide x 36cm tall plant in a 10-cm plastic pot in bark; aggregate and clustered growth habit; pseudobulbs conical, to 2.5-cm wide x 8-cm tall; thin ovolanceolate leaves, emerging apically from psueudobulbs, to 8-cm wide x 34-cm long; sepals oblong, fused basal two-thirds, ivory, suffused violet distal third forming irregular stripes, speckled violet, visible on obverse, basally; lateral sepals reflexed distal third; petals lanceolate, fused basal half, ivory, irregular violet spots apically, lightly speckled violet basal two-thirds; lip tongue-like hinged, ivory, overlaid butter yellow, burgundy speckling apically, central keels yellow, side lobes deep violet apically; column and anther cap ivory; substance firm; texture glossy; species native to Borneo; recognized as an interesting and unique flower form and species rarely seen in cultivation.