Stelis

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Finding

SITF confirms this plant as Stelis alternans (Apr 2025). This plant matches Luer's 2004 description of S. alternans. It is "recognized by narrow leaves bourne by much shorter ramicauls and surpassed by a slender, congested raceme of purple flowers. Each flower is held 45 degrees from the rachis in 2 evenly spaced rows with all the flowers facing in the same direction. The dorsal sepal is significantly larger then the oblique laterals. The petals are transverse and shallowly concave and the lip is shallowly discoid with the base sparsely to densely pubescent." It matches Luer's drawing and the photo of S. alternans in the IOSPE.

Name

Overall Length Of Growth Cane: 19

Number Of Leaves Per Growth Or Cane: 1

Leaf Length: 7

Leaf Width: 1.0

Leaf Margin: flat

Leaf Shape: narrowly elliptic

Leaf Petiole Length: 2.2

Pseudobulb Length: -

Pseudobulb Width: 0.15

Pseudobulb Margin: linear

Pseudobulb Distance: 0.1

Pseudobulb Root Tip: -

Inflorescence Overall Length: 18

Inflorescence Arrangement: spike

Inflorescence Dist Base To Bud: 5.3

Inflorescence Dist Bet Flowers: 0.3

Inflorescence Dist To Sepal: 0.1

Floral Bracts Length: 0.05

Floral Bracts Width: 0.1

Ovary Length: 0.1

Ovary Width: 0.05

Ovary Shape: tubular (5 lobes)

Ovary Color: mahogany

Ovary Texture: -

Flower Natural Spread Length: 0.5

Flower Natural Spread Width: 0.3

Dorsal Sepal Length: 0.3

Dorsal Sepal Width: 0.2

Lateral Sepals Length: 0.1

Lateral Sepals Width: 0.2

Petals Width: 0.1

Judging Center: Montreal

Award Number: 20256902

Award Date: January 18, 2025

Awarded As: CHM

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Learn more about the Stelis genus

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