S1

Critically Imperiled 

Victor Engel at the-light.com/orchids/ldl1.html (2000)

Hexalectris arizonica (Arizona crested coralroot)

Stems pinkish-red, pinkish-yellow, or pinkish white; flowers with sepals pale creamy yellow or dull pale pinkish-purple with pinkish-red, pinkish-brown or pinkish-purple veins, connivent or spreading apically; dorsal sepal lanceolate to oblong, 15-18...


Rare and Threatened Plants of Big Bend at www.nbii.gov/portal/server.pt (2009)

Hexalectris revoluta (Curly crested coralroot, Chisos Mountain crested coralroot)

Herbaceous saprophytic perennial; stems 40-50 cm tall, pale pink to rose to tan, leafless except for a few widely spaced bracts; inflorescence a raceme with 10-20 rose-tan to whitish flowers; sepals and petals pale rose-tan with light veining, free a...