Finding
SITF confirms this plant is Bulbophyllum contortisepalum (Dec 2023). This is a very distinctive species, no other species in the Bulbophyllum Section Hoplandra is similar. Photos of this plant clearly show the fringe on the basal margins of the lip and petal apices. Matches description and photos of B. contortisepalum in the "Orchids of New Guinea.com". Forty-six photos in the orchidroots.com also closely match. Images of the species show the color is quite variable.
Overall Length Of Growth Cane: 4.0 cm
Number Of Leaves Per Growth Or Cane: 1
Leaf Length: 3.2 cm
Leaf Width: 1.1 cm
Leaf Margin: entire
Leaf Shape: lanceolate
Pseudobulb Length: 0.9
Pseudobulb Width: 0.3
Pseudobulb Margin: ovoid
Pseudobulb Distance: 1 cm
Pseudobulb Root Tip: green
Inflorescence Overall Length: 8.5 cm
Inflorescence Arrangement: upright, erect
Inflorescence Dist Base To Bud: 8.5 cm
Inflorescence Dist Bet Flowers: n/a
Inflorescence Dist To Sepal: 8.5 cm, 6.5 cm to ovary
Floral Bracts Length: 0.4
Floral Bracts Width: 0.1
Ovary Length: 1.5 cm
Ovary Width: 0.1 cm
Ovary Shape: acutely conical, nearly cylindrical
Ovary Color: burgundy on dorsal side, yellow on ventral side
Ovary Texture: satin, glabrous
Flower Natural Spread Length: 6.0
Flower Natural Spread Width: 1.0
Dorsal Sepal Length: 0.4
Dorsal Sepal Width: 0.2
Lateral Sepals Length: 6.0
Lateral Sepals Width: 0,5
Petals Length: 0,2
Petals Width: 0,1
Judging Center: northeast
Award Number: 20234914
Award Date: October 21, 2023
petals clasp column, petal margins fimbriate