TARAXACUM SIPHONANTHUM, A NEW SPECIES FROM NEI

A new species, Taraxacum siphonanthum X.D. SUN, GE XUEJUN, KIRSCHNER & STEPANEK is described from Nei Mongol, NE China. The species is intermediate between sections Mongolica and Borealia, although in most characters it is closer to the former. It is an apomictic species with tubular florets; these and other similar characters in Taraxacum are discussed.