Yesterday saw a group of first-year undergraduates braving the baking Mediterranean sun for the first day trip of the Comparative and Adaptive Biology field course. The Bocquer Valley near the town of Pollenca is a great place to look for Mallorcan endemic ‘hedgehog’ plants Teucrium subspinosum and Astragalus balearicus. While the students investigated the distribution of these small spiny shrubs, the staff took the opportunity to do a little more plant hunting.
One beautiful plant we regularly see in flower is the Balearic cyclamen (Cyclamen balearicum). It has very marbled leaves and delicate white flowers and hides in the shade of the larger shrubs. We also find the leaves of the Mallorcan peony (Paeonia cambessedessii). We visit far too late to see it in flower, but we’ve never found fruit either, suggesting that these plants didn’t flower in February or March. Perhaps these are young plants, or perhaps this is an indication of the difficult environment in the valley. This peony is named for the French botanist Jacques Cambessedes (1799-1863) who studied the plants of the Balearic Islands in 1825 and published the account of his travels and his work on the flora in 1826 and 1827.
One plant we’ve not spotted on our previous visits is the Dead-horse arum (Helicodiceros muscivorus). Given that it was behind a tree, under a shrub and in the bottom of a drainage channel, it’s not too surprising that we’ve not found it before. This plant has striking arrow-shaped leaves (sagittate leaves) and a flower spike (spadix) enclosed in a sheath known as a spathe. This specimen had not yet opened, and the geometrically patterned spathe was still closed shut. I’m not sure that I was too disappointed as the plant attracts pollinating flies with heat and rotting carcass smells.