New Tree Book and Field Guide for Panama

Here’s the book I wish I had seven years ago when I tried to identify my first tree in Panama.

It would have saved a lot of time.

But it wasn’t published until this year. I just got my own copy, and I’m devouring it.

The title is Trees of Panama and Costa Rica (Princeton Field Guides) . The authors – Richard Condit, Rolando Pérez, and Nefertaris Daguerre – know the value of good field guides. Condit grew up in North America and was accustomed to field guides like those developed by Roger Tory Peterson. Pérez and Dagure grew up in Panama without such field guides. They all believe that a series of good field guides will help “budding botanists and ecologists” become familiar with the plants near their homes and in the woods where they walk.

[Right away I knew these were people after my own heart. I still remember identifying, as a youngster, my first bird using a Peterson Guide. It was an Eastern Meadowlark. The satisfaction of matching the bird to the description was inmeasureable, and I still have a warm feeling whenever I see that meadowlark.]

2300 Tree Species

A neat question raised by the authors was: which of the following common trees found in the US and Canada are found in the tropics?

  • maple
  • beech
  • hickory
  • fir
  • redwood

Answer: none of them. Not found at all in the tropics.

What, then, are the major groups of trees found in the tropics?

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Peltastes, the Shield Liana

About this time last year, there was this flower on the ground.

Flower dropped to the ground

When I looked straight up to see where it came from, all I could see were the leaves and green fruits of a nance tree. I looked down at the ground again, and I found another flower, with an upside-down leaf.

Flower and underside of peltate leaf

It took awhile before I stepped far enough away from the tree to see what was growing on top of the nance.

Liana on top of nance tree

A liana, with peltate leaves.

Hard to see, though. Grabbed binoculars, then camera with zoom lens.

Okay. What about on the ground – were there any nearby so I can get a better look?

Well, there were some young plants with peltate leaves under that nance tree. No flowers.

Young shoots of Peltases

Flowers, peltate leaf, liana. The flower looks so much like an Allamanda that I thought this liana must be in the same family. It seemed at the time that these features might be enough to go on.

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Curcuma Quiz

Reader Sue K. recently left a comment on my post about Panama’s Curcuma plant. It was enticing enough to follow up on, so here it is:

My Curcumas are light pink in color and have blueish small flowers that bloom from the cone area. The leaves come first and then the flowers. I would love to know what kind they may be if someone knows. I wish I could post a photo too. I love them and was very surprised to see them return the year after we planted them. We live in S. Florida and don’t have to take them out of the ground. I don’t know much about bulbs…but if we move to NC, I would like to take them with me and hope they will grow there too. Sue K.

I wrote back to Sue and offered to post her photos to see whether anyone else who reads this blog might identify them.

Her Curcuma is beautiful!

Click on any of these thumbnails to see a larger version. The first photo includes a bonus dragonfly. Sue noted that the flower in the vase was cut because they had a storm and the stem was bent. The little blue flower opened after she brought the flower inside.

I’m intrigued that the leaves of her Curcuma come up first, then the flowers. The flower stems do seem to come up directly from the ground, though, like our Curcuma here in Panama.

With a little searching on the internet, I think we’ve come up with the name of this Curcuma, but I’d like to ask your opinion. What do you think Sue’s Curcuma is? (If no one knows, I’ll post our guess next week.)

Update: We have one answer so far, posted as a comment to the original post on Curcuma. You can follow the link over there if you want to see it, or you can make your own guess without peeking by leaving a comment below!

Update 2 – The Answer: Sue’s Curcuma is probably Curcuma alismatifolia, as Carla guessed in the one and only attempt that anyone made to answer. It’s a probable, not a definitive ID, because of the number of cultivars and unnamed hybrids in this genus. The story is told well, with another lovely photo, at Botany Photo of a Day, where even the expert called his identification tentative.

The common name of this flower, if C. alismatifolia is indeed what it is, is Siam Tulip. Carla mentioned in an email message to me that a friend had sent her a photo of a whole field of these flowers in bloom, just like a field of tulips. One of the comments at the Botany Photo of a Day site mentioned that this open area habitat is unlike that preferred by many other gingers. I couldn’t say about that, but the mind boggles at the thought of a field of Siam Tulips!

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The Sandpaper Tree – Curatella americana L.

Back when I was trying to identify a plant with sandpapery leaves, I kept finding references to a tree in the same family, but the particular plant I wanted to identify was a woody vine, a liana. It turned out to be Davilla kunthii A.St.-Hil. and I did learn a lot about its flowering and fruiting by watching it for a few seasons.

But that tree was something else. Robin Foster of the Chicago Field Museum was very helpful to me in those days, and he remarked that I could easily tell the leaves of the tree from the leaves of the liana because the tree leaves had wavy margins. The leaves of both plants are relatively large, rough, and have pinnate, parallel secondary veins. Both also have beautifully reddish young leaves. After learning about the wavy margins, I easily spotted it:

Young C. americana leaves

For handy reference, here are the leaves of Davilla kunthii:

Davilla kunthii leaves

My trouble was, I couldn’t find any mature trees with those wavy-edged leaves. We had plenty of saplings and I saw saplings elsewhere in the area, but not trees.

So I waited….

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