Abstract
Saxifraga
cataphracta, a new species of Saxifragaceae from Southwest China, is
described
and illustrated. Morphological and molecular evidence (matK ,psbA-trnH , psaJ-rpl33 ) indicate that S. cataphractabelongs to S. sect. Irregulares , and
closely
related to S. geifolia and S. mengtzeana . The new species
can be diagnosed by its
leaf
blade abaxially with white or virescent
interveinal
streaks, involucre and bracts conspicuous, capsule beaks winged when
mature.