studied the maps of various Caribbean islands, Mlle. Anna Vickers (1852 –
1906), selected the island of Barbados to extend her studies on marine algae.
She spent the winters of 1898-1899 and 1902-1903 in Barbados where she
collected some 215 species of seaweeds, 13 new to science and 14 never before
reported from the West Indies. She fully explored the Barbados coastline from
"a delightful corner named Worthing’, St. Lawrence with "the little
church perched on high" to Bathsheba "with its huge rocks forming a
point heading out to sea". Having published a short paper listing the
algae of Barbados she then set about preparing a beautifully illustrated
volume, Phycologia Barbadensis, but died before it was completed. The
incomplete opus, with 93 chromolithographed plates of Barbados seaweeds, was
published posthumously in Paris in 1908.
Algae are the foundation of life in the oceans, converting the sun’s energy
into food on which marine animals ultimately depend. Marine algae may be
microscopic or visible to the naked eye in which case they are referred to as
seaweeds. This stamp series look at some of the more common and attractive
seaweeds found in Barbadian waters using illustrations from the hundred year
old Phycologia Barbadensis.
brown alga Padina gymnospora has fan-shaped fronds and is typically found in relatively
sheltered intertidal areas. The concentric lines on its fronds comprise rows of
microscopic hairs and reproductive structures.
lactuca or sea lettuce is so named not just for its appearance but because it
is eaten like lettuce in other parts of the world. This algae with its
sheet-like frond thrives in nutrient-rich areas and so is often a good
indicator of land-based pollution.
Brown algae of the genus Sargassum form dense rafts of seaweed in that region
of the Atlantic Ocean near Bermuda known as the Sargasso Sea. This species,
Sargassum platycarpum, is typical of the rugged east coast of Barbados
characterised by strong wave action. Its small flotation bladders help keep the
seaweed erect while it is attached to the substratum and ensure it floats when
it becomes detached.
green algae are calcified to deter predators as well as strengthen the seaweed
to withstand the violent action of the surf. Udotea and Halimeda are good
examples of these. Interestingly, Halimeda exhibits mass spawning where at dawn
on certain days each year this algae sheds it gametes into the sea in a highly
synchronized fashion ensuring successful reproduction.
Caulerpa species are typically "rooted" in shallow sandy bottoms with
a basal runner from which arise photosynthetic fronds. In one species these
resemble fern fronds, in another bunches of grapes. What is all the more
amazing is that these siphonous algae are giant single cells which can stretch
over 1 m long!
Release Date: July 14,
Designer: Derek Miller
Stamp Size: 38 x 30 .56
Sheet Format: 50 (2 x 25)
Watermark: CA Spiral
Perforation: 14 per 2cms
10c Padina gymnospora
50c Ulva lactuca
$2.00 Udotea conglutinate
Mint set of 4
This product was added to our catalog on Monday 28 March, 2011.