Saturday, August 14, 2010

New orchid photos - Habenaria macroceratitis

Also known as Habenaria quinqueseta v. macroceratitis. This is a woodland species found sparingly in Florida. Where it is found, it can form dense colonies of plants through vegetative reproduction. In fact, some colonies seen in deeper woods never seem to flower (strong enough light is often a key to orchids flowering well), but spread into large, sterile colonies through asexual reproduction alone.

I have visited this particular site in Citrus County, FL for three years running, always just a bit too late to see the plants in flower. I have been greeted instead by wilted flowers and swelling seed pods. This year, I finally got the timing right and found about ten flowering plants among a colony of several hundred. There was no breeze to speak of and the morning sun shone a spotlight (sometimes diffused by clouds) on the beckoning spikes. The flowers are some of the larger flowers in the state, being about 2 inches (5 cm) across from spindly arm to spindly arm. To add to the superlatives, the spur/nectary itself can be a good six inches (15 cm) or more in length. While I haven't smelled a fragrance personally, it is very likely that, like H. repens and H. odontopetala, this species emits a night fragrance to attract rather long-tongued moths to their flowers. Below are thumbnails of the photos taken. Clicking them will open the full-sized photo:


Habenaria macroceratitis - two plants

Habenaria macroceratitis - single spike on smaller plant

Habenaria macroceratitis - single spike on smaller plant

Habenaria macroceratitis - single larger spike

Habenaria macroceratitis - larger spike, semi-backlit by the morning sun

Habenaria macroceratitis - flower closeup

You will also notice a medium-sized brown spider on the larger spike, evidently at home among the spidery blossoms. Here is a closeup:



This type of ambush predation on flowering stems of all sorts is quite often encountered in the field...spiders laying in wait for a hapless visitor to the flowers and the pollinators hoping to survive their next visit to a flower spike. It's all a part of the web of life...prey and predator, pollinator and pollinated playing out their roles in a quiet corner of the woods in the wilds of Florida.

Enjoy!

---Prem

6 comments:

Anonymous said...

very nice!

Ron said...

Excellent photos and wonderful flowers, Prem.

nina kuriloff said...

These are beautiful flowers!

Anonymous said...

Gorgeous! Thank you for sharing such a rare sight.

Unknown said...

I was at Corkscrew about a week ago and saw the 30 ft high ghost orchid through the scope. That's sort of unusual how high it (and early) it bloomed, back in March I think.

orchids flowering said...

What an awesome pics of your orchids collection. They're so beautiful, wish mine would be like that someday. Thank you for sharing. :)

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