Tragopogon porrifolius L. X T. pratensis L. in Friesland

Up to now hybrids of Tragopogon porrifolius L. and the subspecies pratensis and orientalis of T. pratensis L. were only known in the Netherlands from botanical gardens where they came up spontaneously between the parents. The author mentions the first wild occurrence in our country of the hybrid of T. porrifolius and T. pratensis subsp. pratensis along a dike near Wommels, prov. Friesland, where it was discovered by one of his pupils, Mr. Posthuma. Moreover a survey of the distribution of T. porrifolius in Friesland is given.