Here’s a shot of Rauvolfia littoralis, a beautiful small tree
standing at the edge of pastureland, that I’ve admired for years but never knew
the name of, until botanists Barry Hammel and Isabel showed up a few days ago
and identified it. Yes, Pharmacy Friends,
the Rauvolfia genus is the source for the now rarely used antihypertensive, Reserpine,
though that species is Rauvolfia serpentina, native to India and other points
in the Far East. I admit to grinning
and giving Isabel the thumbs up when Barry called it an Apocynaceae. That much I knew! Students of tropical plants: you should start
your study at the family level. I
subscribe to the matrix system of keying out plants, created by Humberto Jimenez
Saa. You ask yourself a series of
questions: “Are the leaves compound or
simple, opposite or alternate?”; “Are there thorns or stipules?”; “Is there sap?”;
“What does it smell like?” etc. And,
pretty soon, you begin to recognize patterns and, thereby, to identify some of
the more common families. However, to
identify a plant to the genus or species level requires much more study – or
going for a hike with a very smart botanist.
Barry Hammel is a walking encyclopedia of tropical plants. Thus, having him and Isabel over for a visit
is a special treat – during our hikes he identifies several species new to me,
which I then add to my plant list. He is
an expert but he is also very cautious.
He doesn’t guess and he doesn’t make mistakes. If Barry isn’t sure, he will say that he needs
the flower or fruit to study under the microscope in order to nail the
species. But he always knows the Family
and almost always knows the Genus. Like
everyone who treks the forest, Barry and Isabel marvel at the complexity, and experience
the sheer wonder, of such biodiversity. However,
he also understands that the forest habitat not only needs the ‘poster-child’, rare
plant or endangered animal, but also all the other species, common and uncommon,
both high-up and low-down in the food chain; that they all play important roles
in the eco-system – even at the microscopic soil level, where mysteries still
await discovery and understanding.
I mention this because new travelers to the Tropics will
first gasp in astonishment at the biggest, most colorful species – a massive,
magnificent Ceiba pentandra tree astonished and inspired me to buy and protect
this particular piece of forest. It was
only later that I learned of all of the Ceiba’s cousins - and there I was
hooked. For visiting birders, there is
nothing more spectacular than spotting the elusive Quetzal or a flock of
brilliantly raucous Scarlet Macaws. To
quote Alexander Skutch, “Macaws are unmistakable”. I remember seeing my first Scarlet Macaws
several years ago, at Carara National Park.
The loud, squawking flock of huge, red birds was flying just overhead,
and I exclaimed, “Look! Look!” But my companion, a long-term resident of
Costa Rica, had already seen Macaws many times.
He was much more interested in a tiny Woodcreeper, nearly invisible
against the tree trunk, which he had spotted for the first time – he could now check
it off his list! In the tropical forest,
the more you study and learn, the more there is to see; the complexities only reveal
themselves over time.
Each time Barry visits, he casually identifies almost everything
that I ask about while we are out exploring, although he is usually focused on
a specific area of particular interest to him at the time. One visit he was focused on the Acanthaceae
family and I learned a slew of new plants that day, which were then, of course,
added to my El Tigre list! This visit he
was looking at tiny plants in the coffee family growing in the pastureland. So there I was gaping at the gorgeous
Rauvolfia littoralis, and there’s Barry avidly scooping up tiny little
plants. It was like that Scarlet
Macaw/Woodcreeper episode all over again.
What was he was looking at? Well,
I soon learned a lot about the Spermacoce Genus that day and, now that I know
what they look like, I see them popping up all over the place.
Barry can summarize best in his own words:
“As always, we had a wonderful time at your place on
Saturday; I could explore out there every weekend for a year and still find
much to rejoice! Thanks very much for
inviting us.You were right on with the Apocynaceae and it's already on your list; Rauvolfia littoralis.
I also got Clusia minor, which is probably also on your list, and Souroubea venosa, which maybe isn't.
And as for the little bee witsies I was so concentrated on,
the Spermacoce, these are what I got (or saw):
S. alata, recently otherwise known as S. latifolia, which is
now a synonym. This one I only saw along the road down to the river, didn't
collect because it wasn't in flower, probably the only one I feel at all
comfortable identifying without flowers and fruits.
S. exilis--the tiny one in your pasture, often has a reddish
line down the midrib of the leaves.
S. remota--otherwise known as S. assurgens, I think on your
list by that name, now considered a synonym.
This is the most common one, has flowers with a slight pink or lavender
blush to the buds, can get quite leggy, as in the hedge above your swimming
pool. There's also a rather
smaller-leaved form growing at your place, that I thought might be something
different, but I guess not.
S. suaveolens--actually I neither collected nor even saw
this one, but I do know it's there, from other specimens, along the road down
to Río Jaris, or along the río. This has been called S. capitata, and is on
your list that way. That may actually be the correct name--an older one, in
fact--but it's under study, the types have to be compared, and all that.... For
now, S. suaveolens it is.Photo by Barry Hammel |
S. tonalensis--This was the prize, the one I was hoping to
find, and did! Otherwise known recently
in Costa Rica by only one other collection, from the very same spot where I got
it, along the road down to the river. I attach photos of that one. Probably I
will put all the photos I took of plants at your place (not many this time), on
my Flickr site, and send you the link.”
I so love it when Barry and Isabel come to visit. There’s always something new just around the
corner. Most hikers walk along, enjoying
the forest and convivial companions, getting some exercise. The forest exists as just a lovely background
tapestry of green for most of them.
Unless we stop to observe…
So how is it that I could not recognize the Rauvolfia
littoralis when I had it on my own list?
Because another botanist identified it when I was not present and I just
got hold of their notes – perhaps Luis Poveda (beloved Costa Rican expert of
Medicinal Plants and Dendrology), Humberto Jimenez (Creator of the Matrix), or another
visiting botanist from the one of the Universities, InBio, El Museo Nacional or
beyond.
Notes from the garden:
Last year, we decided to try an experiment growing Arracache
– a delicious rhizome in the celery family that normally flourishes in much
higher and cooler altitudes. But it flourished
here! It’s funny because the celery
didn’t work out at all – too stringy!
Armando harvested a bunch of Arracache and we made a delicious picadillo
with chicasquil, onions and herbs from the garden. Now we have expanded, and replanted tender
Arracache roots in new areas. Our asparagus
has also done well! Many thanks to Tommy
Tomas who got us started on both plants.
We also planted corn, breadfruit, assorted varieties of chilies, beans
and tomatoes – we plant the small tomatoes (thank you Hugo) that turn red on
the vine, which we can pick and eat before the bugs/birds get to them.
Armando has expanded the vivero to include tender greens,
and our growing collection of culinary and medicinal herbs. Some
of the fruit trees planted years ago have now begun to fruit: Bananas, citrus, Manzana de Agua, Avocados,
Mimbros, Guanabanas, Zapotes, assorted types of berries, and the ever wonderful
cactus fruit, Pitahaya. There is no
greater pleasure in the kitchen than cooking with edibles from the garden. The guys have really mastered the alchemy of
composting – that’s the secret to any garden.
Solar notes:
We’re having issues with our solar energy system. We noticed that the batteries didn’t hold
their charge over the last year, as they used to, and our solar engineer,
Carlos Oreamuno, discovered that the manufacturer changed the settings for
their use but never contacted anybody (they just put a technical notice on
their website!). So the negotiations
began and, to make a long story short, the manufacturer is replacing the
batteries under warranty, minus depreciation.
Thus, we will pay only about 20% of the cost of new batteries but – this
part we really love – the Costa Rican Government will then tax us a total of
39% plus a $1,000 Customs ‘handling’ charge, and we have to pick up every
cent! You would think that a
‘green-image’ Costa Rica would provide tax incentives for alternative energy
systems like solar – but no! A few years
ago, the government did remove the 13% sales tax on ‘complete’ solar systems,
bought all at once. However, if you want
to upgrade, or you have to replace, particular components, which is not an
uncommon situation, you will get ZERO tax relief from the government. So for our replacement batteries, we will pay
a 25% import duty, and then the 13% sales tax and then a new 1% tax for
something or other on top, bringing the tax bill to 39%. But, despite the government’s abusive tax
policy, we really don’t regret living off the grid. We never lose power, and I mean we have never
had any disruptions of water or power over all the years of living with solar energy. You can’t say that anywhere else in Costa
Rica living on the grid. In Ciudad
Colon, they regularly cut power – usually at least weekly – sometimes for just
a few seconds (just a nuisance going around resetting clocks, etc.) but too
often for hours and hours. They also
often cut water for most of the day during the dry months, so just about
everybody has a tank to store water.
Power cuts and water shortages just go with the territory living here in
paradise - unless you build your own system.
It is certainly more expensive in the short-term but it’s so much more
reliable, and then there’s the satisfaction, and yes, the responsibility. We have no toasters, hairdryers, irons, or
any appliances that pull too much power.
You learn a lot about wattage and electricity usage when it comes to
making solar work (GRAK complains that it’s so much more than he ever wanted to
know…). And you would be amazed at how
easy it is to give up say, the iron.
After washing clothes, let the sun partially dry them, and then flatten
and mold them into shape before finishing the drying. No ironing needed!