Finding
SITF confirms this plant is Microchilus argenteus (Jul 2024). This plant is an excellent match to Aspidogyne argentea (synonym) on the OW; It also matches photos in the IOSPE. There is an award by the CAOB in the OW. Flower form, color and foliage all fit very well for this species.
Overall Length Of Growth Cane: 9.5cm
Number Of Leaves Per Growth Or Cane: 6 to 9
Leaf Length: 5.5cm
Leaf Width: 2.3cm
Leaf Margin: dark green, veined silver-green
Leaf Shape: lanceolate
Leaf Petiole Length: 2.9cm
Pseudobulb Distance: 3.5cm
Pseudobulb Root Tip: white
Inflorescence Overall Length: 53cm
Inflorescence Arrangement: raceme
Inflorescence Dist Base To Bud: 9.2cm
Inflorescence Dist Bet Flowers: 0.3cm
Floral Bracts Length: 1.3cm
Floral Bracts Width: 0.3cm
Ovary Length: 1.0cm
Ovary Width: 0.2cm
Ovary Shape: stellate
Ovary Color: green
Ovary Texture: crystalline
Flower Natural Spread Length: 0.45mm
Flower Natural Spread Width: 0.8mm
Dorsal Sepal Length: 0.5mm
Dorsal Sepal Width: 0.25mm
Lateral Sepals Length: 0.8
Lateral Sepals Width: 0.3
Petals Width: 0.1
Judging Center: Mid-America Judging Center
Award Number: 20244277
Award Date: April 13, 2024
Awarded As: AM
Forty-four flowers and sixty-three buds on four pubescent inflorescences up to 15cm, held above four rhizomatous growths with velvety dark green foliage veined and overlaid pale green-silver centrally; flowers minute; sepals and petals lanceolate, white central strip dark brown; lip trilobed white; anther cap cream; substance light; texture crystalline; native to Argentina, also awarded for vibrant foliage contrasted with striking flowers.The Genus in the URL is misspelled. Should read Microchilus, not Macrochilus (SITF)