This Bladderwrack, Fucus vesiculosus
which I picked up on the beach at Scarborough a week or so
ago, has been in a bucket of water, tap water, waiting for me
to get around to drawing it. I did change the water once because
it was getting cloudy.
pattern of branching - always dividing into two - is growth pattern
found not just in seaweeds but in a number of the more primitive
groups of plants, such as clubmosses.
I was considering of adding a colour wash to my
drawing but I wanted to do this as a brush pen drawing so - to
give you an idea of the colour - I put the seaweed itself on the
glass of my scanner, with a sheet of paper over it to protect
the lid of the scanner. I made sure that I wiped the glass straight
after doing the scan as I'd noticed that the moist seaweed had
left the paper (left) I'd rested it on as I drew it.
Bladders and Midribs
Scanning has the advantage that I've been able to
adjust the contrast so that the bladderack doesn't appear to be
such a dark olive green or brown - almost blackish - and you can
see its structure more easily.
bladders (left), which give the seaweed
its alternative name of popweed, give the seaweed
The fronds have a prominent midrib.
Found on the midshore and
in estuaries. In sheltered situations it can grow with its holdfast
attached to small pebbles.
a database of terrestrial, marine and freshwater algae including
uses of bladderwrack from A Modern Herbal, first
published in 1931, by Mrs. M. Grieve at www.botanical.com