In late summer, the NYBG‘s Enid A. Haupt Conservatory becomes the home of a botanical behemoth, one of the largest leaved plants in the world. And each year, visitors find themselves caught off guard by the delightful weirdness of this tropical oddity: Victoria amazonica. Originally from the Amazon River basin, it’s long since become an iconic display in our tropical water lily pond.

Named for Britain’s Queen Victoria in the nineteenth century, the structure of the largest of water lilies is a bit like a kiddie pool (and often as big as one). Its broad, smooth leaves can stretch to nearly ten feet in diameter, forming expansive discs with sharply upturned edges that, again, make it look as though you could drop one in your backyard with a few gallons of water and a pool noodle. At maturity, their short-lived flowers can reach 15 inches across, opening white on the first evening as females, and pink on the second as males. It’s a brief display; the flowers (hopefully) attract pollinating beetles to do nature’s work, then sink below the water’s surface almost as abruptly as they emerged.
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Garden Scientist Studies “Culturally Keystone Species”

Brian M. Boom, Ph.D., is Director of the Caribbean Biodiversity Program at The New York Botanical Garden.

Add one more item to the long list of threats that indigenous peoples around the world have to their cultural survival: global warming.

In the past, when the climate changed, indigenous groups could usually migrate to areas where the climate was suitable for their ways of life. Now, with indigenous groups often restricted to territories that are surrounded by farms, ranches, and settlements of more populous and powerful non-indigenous peoples, there is usually no where for them to go. They must endure the climatic changes by adapting; if they cannot adapt, their cultures may become extinct.

While the general problem of climate change to indigenous groups is global, it is also occurring in the Amazon, an area I have studied. A recent New York Times article reported that a drier, hotter Amazonia due to deforestation and climate change is killing off the fauna and flora that indigenous groups of the region depend on for their survival. And I have some data that bear on elucidating the gravity of this issue.

In the 1980s, I teamed up with fellow botanist Ghillean Prance and anthropologists William Balée and Robert Carneiro on a comparative ethnobotanical project with the goal of quantifying the use of trees by four indigenous Amazonian groups. We published the results of our studies in 1987 in the journal Conservation Biology (vol. 1, no. 4) under the title “Quantitative Ethnobotany and the Case for Conservation in Amazonia.” Our main general finding was that these groups had specific cultural uses for between about 50% to more than 75% of the tree species in their territories. This result illustrates just how tightly dependent native Amazonians are on their environment for cultural survival. read more »

Promotes Dialogue between Traditional and Western Medicine Practitioners

Ina Vandebroek, Ph.D., is a Research Associate and Project Director of Dominican Traditional Medicine for Urban Community Health with the Botanical Garden’s Institute of Economic Botany. She has also conducted research on the medicinal uses of plants for community healthcare in Bolivia since 2000. Photo of Ina by Bert de Leenheer

Bolivia is a landlocked country in Latin America with a high level of biocultural diversity. The Andean mountains that run through the country from northwest to southeast give rise to 23 distinct ecological zones, ranging from the high plains (altiplano) at 13,123 feet, to lowland Amazon rain forest at less than 1,000 feet. The total number of plant species found in Bolivia is still unknown, but estimates are around 20,000. More than 30 distinct indigenous languages are spoken in the country—a reflection of its high ethnic diversity.

Ever since I first set foot on Bolivian soil, I became enamored with the country’s cultures and traditions. Bolivia, or la llajta (home) as the Quechua people who make up one-third of its population would say, is where you eat roasted cow heart with peanut sauce (anticuchos), pay a ritual tribute to Mother Earth (la Pachamama) each first Friday of the month, or negotiate a good price with vendors at the largest open-air market in Latin America. The market, called La Cancha in the city of Cochabamba, is where you can find nearly anything you dream of. My favorite corner is where the dry and fresh herbs are as well as seeds, incense, llama fetuses (used for spiritual purposes), and mesas or ritual preparations for Mother Earth.

The Bolivian lowlands are home to several indigenous groups, many of whom do not have easy access to biomedical healthcare. This means that, all too often, traditional medicine is the only healthcare available. The crushing reality is that in life-threatening situations such as a hemophilic newborn, a venomous snakebite, or a serious gallbladder infection—all to which I have been a powerless witness—people die without reaching a hospital. Luckily, for many other illnesses, traditional healers are able to play a secure role in maintaining overall community health. Being indigenous community members themselves, healers’ role in healthcare is pivotal. Patients trust them and share with them the same cultural beliefs about the causes and treatment of illnesses.

Last month I began organizing indigenous community health workshops in Bolivia with the objective of promoting dialogue between biomedical healthcare providers and traditional healers about frequently occurring health problems. The idea is for the two groups to reach consensus about the best ways for traditional healers to deal with these conditions in communities without access to biomedical healthcare. read more »

Scott A. Mori, Ph.D., Nathaniel Lord Britton Curator of Botany, has been studying New World rain forests at The New York Botanical Garden for over 30 years. As part of The Edible Garden, he will hold informal conversations about chocolate, Brazil nuts, and cashews—some of his research topics—during Café Scientifique on August 13.

The chocolate that we eat and drink is one of the most complicated foods utilized by mankind. Not only did it co-evolve in the rain forests of the New World with still unidentified pollinators and with the help of animals that disperse its seeds, but it also undergoes an amazing transformation when it is processed, going from inedible, bitter seeds to the delicious chocolate products that most of us enjoy.

I became fascinated with the natural history and cultivation of chocolate while working for the Cocoa Research Institute in southern Bahia, Brazil, from 1978 to 1980. I directed a program of plant exploration in what was then, botanically, one of the least explored regions of the New World tropics. During those two years, I made 4,500 botanical collections, including many species new to science and many from cocoa plantations.

The scientific name of the chocolate tree is Theobroma cacao L. Theobroma means “food-of-the-gods” in Greek; cacao is derived from the Aztec common name chocolatl; and “L.” is the abbreviation for Linnaeus, the botanist who coined the scientific name of the chocolate tree. The genus Theobroma includes 22 species.

One of the unsolved mysteries of the natural history of chocolate trees is its pollinators. Most varieties of chocolate are self-incompatible, which means that pollination of the flowers of a given plant with pollen from the same plant does not yield fruit. There are, however, some varieties that are self-compatible—the single tree growing in the Enid A. Haupt Conservatory at NYBG is proof, because it sets fruit. Nevertheless, for most chocolate trees to produce fruit, pollen has to be moved from one tree to the next. This does not happen frequently in plantations, because the average tree produces between just 20 and 40 fruits each year from the thousands of flowers that open on the tree.

Thus, a limiting factor in the production of chocolate is successful pollination, and because this has economic implications there has been considerable research about how to increase the production of chocolate by enhancing pollination. Some researchers believe midges (minute, mosquito-like flies) are the pollinators of chocolate trees. But the complexity and relatively large size of chocolate flowers in comparison to the size of midges indicates that they might be occasional visitors rather than the true or only pollinators of chocolate. read more »