Pleurothallis-discoidea-Bryon-Rinke-JC/AOS-2019-10-08***Confirmed as Pleurothallis discoidea (Apr 2020); determined to be correct based on matching photos in OW, IOSPE and and aided in the identification by Dr. Mark Wilson.***

Judging Center: Great Plains

Award Number: 20193043

Award Date: September 21, 2019

Awarded As: Pleurothallis discoidea 'Bryon Rinke' JC/AOS

Six cupped flowers and one bud on 7 inflorescences coming from the leaf axial; sepals and petals translucent pale yellow; sepals with three darker yellow veins; petals with darker yellow midrib; lip yellow, darker yellow-orange on proximal central one half; column pale yellow, anther cap white blushed very pale yellow; ovary dark green, 0.1cm wide x 0.15 cm long; substance good; texture crystalline; species from Venezuela; ID by SIFT ___________.

This actual plant was sent to Mark Wilson in Colorado for his opinion on the ID. His email to me follows:


Yes, that is P. discoidea - very nice!!! Please could you preserve a few flowers for me in 70% ethanol (did I remember to say thanks for sending the P. aff. imperialis flowers - if I forgot that too, please accept my belated thanks). At some point I need to write something about distinguishing P. discoidea and P. isthmica and some related new species so flowers would be helpful since I don't grow that species.

Dr. Mark Wilson

Dept. of Organismal Biology and Ecology

Colorado College

14 East Cache La Poudre

Colorado Springs

CO 80903



U.S. 719-321-6293

U.K. 23-8168-0164

Plant > Overall length of growth/cane: 16-17cm

Plant Leaf > number of leaves per growth or cane: 1

Plant > Leaf Length: 7.5cm

Plant > Leaf Width: 1.9cm

Plant > Leaf Margin: smooth

Plant > Leaf Shape: lanceolate

Plant > Pseudobulb/Growth/Ramicaul Length: 9.5cm

Plant > Pseudobulb/Growth/Ramicaul Width: 0.15cm

Plant > Pseudobulb/Growth/Ramicaul Margin: smooth, terete

Plant > Pseudobulb/Growth/Ramicaul distance between growths along rhizome:: tight

Plant >Pseudobulb/Growth/Ramicaul Root Tip Color: green

Inflorescence > Overall Length: 0.5cm

Inflorescence > Arrangement: 1 per inflorescence

Inflorescence > Ovary Length: 0.15cm

Inflorescence > Ovary Width: 0.1cm

Inflorescence > Ovary Shape: terete

Inflorescence > Ovary Color: dark green

Inflorescence > Ovary Texture: smooth

Flower Natural Spread Length: 0.6cm

Flower Natural Spread Width: 0.6cm

Flower > Dorsal Sepal Length: 0.5cm

Flower > Dorsal Sepal Width: 0.3cm

Flower > Lateral sepals or synsepal Length: 0.5cm

Flower > Lateral sepals or synsepal Width: 0.3cm

Flower > Petals Length: 0.3cm

Flower > Petals Width: 0.05cm

Flower > Lip or Pouch Length: 0.4cm

Flower > Lip or Pouch Width: 0.2cm

Flower > Column Color: pale yellow

Flower > Anther Cap Color: white blush very pale yellow


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