Temperatures within and outside flowerheads of the summer-flowering Mediterranean thistle <i>Carlina corymbosa</i> (Asteraceae)
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This dataset consists of a single file containing <i>N</i> = 24,519 paired temperature measurements taken inside seven different <i>Carlina corymbosa</i> (Asteraceae) flowerheads (<i>T</i><sub>in</sub>) and the air nearby (<i>T</i><sub>out</sub>), recorded continuously during periods of 2-5 days. The first line of the file has the names of the variables, which are self-explanatory: "locality", "flower_id", "time.UTC", "Tin", "Tout".One fine type K thermocouple inserted perpendicularly inside the flowerhead provided the <i>T</i><sub>in</sub> measurements, while a similar thermocouple with the tip kept ~2 cm away from the flowerhead's surface yielded the <i>T</i><sub>out</sub> measurements. Thermocouples were connected to a battery-powered data logger/thermometer. Data are from two southern Iberian <i>C. corymbosa</i> populations, growing in open <i>Quercus ilex</i> woodlands of central Sierra Morena (Córdoba province, 760 m a.s.l.) and in large clearings of <i>Pinus nigra</i> forests in the Sierra de Cazorla (Jaén province, 1410 m a.s.l.), named "Cordoba" and "Cazorla", respectively, in the field "locality" of the dataset. The two sites were 155 km apart.
