History
This blog summarizes
the campus plant walk given by Professor D. Narasimhan of the MCC Biology
department on 11/7 at 2PM. He started with the early history of the campus,
explaining how it was not originally a prosperous forest. The degraded state of
the land was helpful in the college’s negations for its purchase from the
government. Starting in 1919, the college leadership began wrangling with the
administrators of Selaiyur Forest, and eventually secured a 390 acre tract of
poor quality land. Hostel and classroom construction took several years, and he
school eventually moved to its current home in 1937.
Professor
Edward Barnes, a chemist by training but a botanist by passion, took over the
greening of the campus. Barnes and his wife, who assisted him immensely, never
planted saplings, but gathered seeds from their various travels to bring back
to MCC. Besides introducing these seeds, they didn’t interfere much with the
natural process of biological succession.
The diversity visible
on campus today results from nearly 70 years of unhindered growth. Biodiversity
comes from birds and bats which imported species from many nearby areas. The
vegetation as a whole is not super tall, and many are thorny, an adaptation to
grazing and dryness. This type of growth is referred to as a tropical dry
evergreen forest. It originally existed in a thin strip along the coast but has
been heavily developed so that only about one percent of it remains.
One serious ecological
issue plagues MCC today: the deer. The spotted deer we see everywhere on campus
are not native, but escaped inside the walls from the neighboring Ghandi
national park in the 1980’s. The deer cannot be killed, since gun ownership is
illegal and, besides that, hunting on a college campus would never be allowed.
The nearby air force base spent 4 lak rupees to round them all up and move them
elsewhere, but such funding is not available to MCC. Additionally, like our
tour group, the students at MCC have taken a liking for the deer, and would
probably resist their removal by any means.
The deer have
noticeably affected the forest structure by thinning out the undergrowth
because they are approaching the carrying capacity of the campus. This will
drastically shift the makeup of the plants because they graze harshly on
saplings all but the most unpalatable species. Soon, only the species
inappropriate for deer will remain. This represents an unnatural state which
good management policies should definitely avoid.
Tour
The
following map provides an approximation of our tour route starting from the
International Guest House and the plant species we stopped to observe.
1 – Memecylon: Mentioned as far 2000 years ago in
ancient Tamil literature. Flowers in the monsoon and then yields small fruit.
2 – Ziziphufs: Small berry also. Smells good and
provides good vitamin C
3 – Todalia Asiatica: Good pungent aroma and taste.
4 – Glivicedia sepium: Introduced by the British as
a quick nitrogen source. Also makes good rat poison.
5 – Scyivia Myrtium: When berries turn blue you can
eat.
6- Gymnema Sylvestry: Chew leaves to numb taste
buds. Sweet things will no longer taste sweet for about an hour or so after
consumption.
8 – Cycas cercinalas: On earth since the Jurassic
period
9 – Muriah cauricalata: Jasmine relative with odor
similar to the jasmine
10 – Pipul Tree: Sacred religious tree with heart
shaped leaves. Buddha obtained enlightenment under the lodi tree, which is a
specific pipul tree specimen. This, like the banyan, is a member of the fig
family, and a keystone species, which refers to a plant that provides good
habitat to support a variety of life like birds, epiphites, insects and
rodents.
11 – Tamrindus: Has edible brown pods and almost all
south Indian food uses tamrind juice for seasoning. Name comes from tamar,
which means dates, because people thought it was an Indian version of the date
tree when they named it.
12- Ironwood Tree: Not a native species. One of the
few trees where autografting occurs, or the fusion of its own branches when
they encounter each other.
13 – Guiacum officianil: Also known as the tree of
life, this tree is native to South America, where its various medicinal uses
earned it the flattering common name.
14 – Albizia lebbeck: Bears white flowers that
symbolize victory in ancient Tamil culture. Produces long pods that dry and
clatter in the wind, earning its popular name of the “Mother in Law’s Tongue”
tree.
15 – Gloriosa superb: State flower of Tamil Nadu.
The fade from white to red is thought to resemble
the fingers of dancing ladies.
Its tubers contain alkaloids with curative
properties for arthritis.
16 – Maduka longifolia: Also known as the Sapoti
fruit, this is another keystone species that humans use to make liquor, lamp,
and cooking oil.
17 – Morinda Pubescence: Cousin of Noni, the
Hawaiian miracle drug. Edible fruit.
18 – Wild Yam: Underground tuber is used as birth
control in many ancient societies.
19 – Mahogany: Valuable hardwood.
20 – Raulina Serpatina: One of the oldest medicinal
herbs. Calms the central nervous system and reduces blood pressure. Applied to
snake bites and lunatics.
21 – Crescentia cujeti: Also known as the calabash
or skull tree, this African import bears unique large fruit that grow directly
from the main trunk so as not to weigh down the branches. Bat-pollinated
ornamental.