Promenaea xanthina

"Promenaea xanthina Lindl. is native to Brazil. This orchid grows at an altitude of about 1700 m in the cool mountains near the south-east coast in the states of Espirito Santo, Rio de Janeiro, Sao Paulo, Parana and Minas Gerais. These plants usually grow on trees, but sometimes they grow on rocks." 

Promenaea xanthina Lindl., Edwards's Bot. Reg. 29(Misc.): 13 (1843).

Promenaea xanthina Lindl., Photo by Rosa Oliveira

Promenaea xanthina Lindl., Photo by Peder Lundgren

its native range is E. & S. Brazil.

Latin Name: 

Promenaea xanthina Lindl. 

Family: 

Orchidaceae Juss.

Synonym:

Eulophia crinita (P.N.Don) G.Don

Maxillaria lawrencei Kraenzl.

Maxillaria xanthina Lindl.

Promenaea citrina P.N.Don

Promenaea xanthina var. major Cogn.

Zygopetalum citrinum (P.N.Don) G.Nicholson

Zygopetalum xanthinum (Lindl.) Rchb.f.

English Name:

The Yellow Promenaea.

Description: 

that has oval, compressed, 4-cornered, 1" [2.5 cm] pseudobulbs with 2 apical, oblanceolate, 3" (7.5 cm) leaves. They have a basal, lateral to pendant, 2 to 4" (5 to 10 cm) long, inflorescence that bears 1-2 long lasting, fragrant, waxy flowers held close to the leaf base, occuring in the spring and summer. They can be raised in a basket with a fast draining medium and should have ample water while in growth, after maturation they should be given a short 3 week rest and then less water until after the new growths are 1/2" long.

Distribution:

Brazil Northeast, Brazil South, Brazil Southeast.

Ecological:

A small sized, cold to warm growing, epiphytic plant from southern Brazil at elevations up to 1700 m in sheltered montane forests.

Flowering times:

Blooms in the spring and summer.

Flower size:

5.0 cm.

Cultivation:

Light:  

Bright; 2500-3500 Footcandles (very bright indirect light)

Temperature:

Bright; 2500-3500 Footcandles (very bright indirect light)

Watering:

Potted, Moist; 2-3 waterings per week(let dry slightly between waterings)

Type Information:

Jan 1, 2012 Gardner, G. [652], Rio de Janeiro K000857191 syntype

Harley, R.M. [H50612], Brazil 57973.000 FLOWER

Gardner, G. [652], Rio de Janeiro K000880349 syntype

Gardner, G. [652], Rio de Janeiro K000880349 syntype

Reference: 

theplantlist.org

https://www.ipni.org/n/655073-1

http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:655073-1

http://www.orchidspecies.com/promxanthina.htm. 

https://travaldo.blogspot.com/2018/04/promenaea-xanthina-care-and-culture.html

https://andysorchids.com/pictureframe.asp?picId=2255