Vivi's Orchid Corner

October 2002 - Volume 7, Issue 9

"Masdevalias"

Dear Orchid Friends:

Mystical cloud forest orchids: Masdevalias are characterized for their showiness and distinctive triangular shape. Masdevalias are a genus in the sub tribe Pleurothallindinae. Masdevalias are cloud forest orchids, which mean they grow in high mountain elevations, require cool temperatures and significant amounts of moisture. Cloud forests are forestations thick with vegetation and old growth trees constantly engulfed in a fog, mist or cloud. Masdevalias grow generally from 6000 ft. to 12,000 ft. elevations.

The Masdevalia genus contain several hundred species - all predominantly cool growing orchids. There are species that have adapted to other environments; warmer environments and at Sea Level. However, these Masdevalias are primarily considered cool growing orchids. Masdevalias are found in the mountainous regions in South America (Brazil, Ecuador, Peru) as well as Pacific Northwest U.S. and Canada. Masdevalias are epiphytes and grow well on mossy branches and trees where they receive air movement and moisture.

The requirements of cool temperatures, moisture and relative humidity make these orchids difficult to grow. These orchids are best saved for the more experienced growers or hobbyists. Beginners may find Masdevalias a bit daunting.

Temperatures: Masdevalias like cool temperatures. They do extremely well in daytime temperature ranges of 50-65°F. There are some varieties that tolerate warmer temperatures (70s°F). Masdevalias like at least a 15-20°F difference between day and might temperatures. This temperature difference is essential for these orchids. Remember, these orchids live primarily in cloud forests where the humidity is 70-100%. Masdevalias do not thrive in areas where the temperatures remain high (80°F) for extended periods. Masdevalias require constant air movement or breezes.

Light: Masdevalias like low light levels. In nature, Masdevalias grow in highly shaded areas in the cloud forests. These orchids will wither and die if given too much sun. Leaf color is generally best if it is light or medium green. Many growers in the Pacific Northwest and Canada are in temperate rainforests, and have luck growing these orchids under lights or in Edwardian cases where temperature, humidity and light can be well controlled.

Watering: Masdevalias are compact plants and do well when mounted on cork slabs. Masdevalias not have pseudobulbs per se. Leaves arise from stems on rhizomes. Thus, they do not have the ability to store water and cannot thrive without water. Masdevalias require frequent watering to keep the medium moist. They like moist roots. Over watering or excess water does not make up for the fact they like humidity.

Flowers: Flowers are triangular - much like the shape of tri-cornered hat with the tips like long tails. These tails are called sepaline tails. Flowers range from small (3 cm.) to as long as 15 -20 cm. (inch to 6-8 inches) in length. Flower color ranges include subtle yellows to vibrant reds. Some varieties are fragrant.

Some of the Masdevalia species include: Masdevalia infracta (found in mountains near Rio de Janeiro and Columbia); Masdevalia veitchiana (Peruvian, large and reddish-orange); Masdevalia coccinea (scarlet red); Masdevalia tovarensis (Venezuela, white). Masdevalias have an interesting background. Per Margaret Webb, of J&L Orchids, Spanish botanists identified the genus over 200 years ago and named the genus after a friend, Dr. Jose Masdevall.

Care of Masdevalias is characterized as difficult. I have never attempted to grow these orchids since I live in South Florida. During my travels to Rio de Janeiro in 1996 for the 15th WOC, and Vancouver, BC in 1999 for the 16th WOC, I had the opportunity to view and admire these unique orchids. The Pacific Northwest is fortunate to have ideal conditions to grow these lovely orchids. J&L orchids from Easton, CT had a lovely Edwardian case display at the 16th WOC, Vancouver.

Ahhh, Masdevalias…I can only admire thee orchids from afar.

Vivi