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Eric Harley

Dr. Eric Harley has done some interesting work on the genetic similarity of the different Disa species based upon genetic coding.  He has a paper in the Amer. Jour. Botany 88(11):2088-2100. 2001, which should make interesting reading for the true DisaPhile. For a number of years he has tried to grow the blue Disas, Disa maculata and Disa longicornu by the use of tiles having drip trays on the top to duplicate the water flow found in nature.  Using this technique, he has successfully flowered maculata for a number of years. Unfortunately, while his work is known locally, it is not widely known among the world’s Disa growers. Below are some pictures taken at his home and following are some of his photos of species that I have never seen in person.

Eric keeps a number of other orchids in an enclosed sunroom in which he tries to duplicate some natural conditions. Another shot of the room is below right.

This is one of Eric's attempts at growing orchids in handmade pottery.

In this photo, some of the slabs can be seen in outside shade.  If you look carefully, you can see the troughs along the top of the 3 slabs on which plants are growing

Here is a slab without the growing surface.  The light colored spots are small ceramic hooks to better hold the substrate.

Here you can see a number of dried plants which were in the dormant stage following their growth earlier in the year.

Another view of Eric's enclosed sunroom.  The foggy part of the photo at upper right was caused by a high pressure misting system used to increase humidity and also to provide cooling.

Here is another rack of tiles holding plants.  The different species go dormant at different times of the year and you can see that here.

The photos below this point are all taken by Eric Harley.  Some species I haven't seen before and some are just nice photos of the respective species.  I'm including them here for your viewing pleasure.

Disa bivalvata above and Disa cardinalis to the right.

Disa longicornu

Disa maculata

The three photos above, to the right, and below are all Disa maculata


Disa racemosa

The photo above is Disa tenuifolia (formerly Disa patens).

The three photos to the right, bottom, and bottom right are all Disa virginalis which until recently was thought to be a white form of Disa maculata.

 

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