Next time you go
for a walk in the countryside especially in areas with rocky garigue, look out
for the brightly coloured sand crocuses which are starting to flower at this time of the year.
Sand crocuses are scientifically known as the romulea a name derived from Romulus, one of the legendary founders of Rome, because whoever gave them their name found large numbers of these plants growing around the Italian city.
Sand crocuses are scientifically known as the romulea a name derived from Romulus, one of the legendary founders of Rome, because whoever gave them their name found large numbers of these plants growing around the Italian city.
The romuleas, of
which there are about 80 species, are found in Europe, North Africa and South
Africa.
They form part of the iris family which is characterised by having linear or sword-like leaves.
The leaves of the sand crocuses are in fact look like green threads.
They form part of the iris family which is characterised by having linear or sword-like leaves.
The leaves of the sand crocuses are in fact look like green threads.
Until a few
decades ago two species of romuleas were recorded in the Maltese islands with
one species being divided into four varieties.
These varieties have now been designated as species and we now have five romuleas present in the Maltese islands although to the untrained eye the five species are so alike that it seems next to impossible to tell apart.
These varieties have now been designated as species and we now have five romuleas present in the Maltese islands although to the untrained eye the five species are so alike that it seems next to impossible to tell apart.
Some species of
romulea are cultivated as garden plants although they are not as popular as the
larger crocuses.
The violet
romulea (żagħfran tal-blat biċ-ċentru roża) is very rare and one is
unlikely to meet it unless looking specifically for it. Another species, the
Maltese romulea, (żagħfran tal-blat ta’ Malta) is endemic to the Maltese
islands, although it is very rare and might already be extinct.
Some romuleas are very similar to crocuses with which they share the
same habitat. Although they are both members of the iris family they belong to
separate groups and have evolved separately. Their similarity is a result of the fact they the two groups of plants share the same ecological niche have evolved in the same way to deal with the same environmental conditions a process known as convergent evolution.
This article was published in The Times on 01/02/2012
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