Indehiscent sporangia enable the accumulation of local fern diversity at the Qinghai-Tibetan Plateau
Abstract Background Indehiscent sporangia are reported for only a few of derived leptosporangiate ferns.Their evolution has been likely caused by conditions in which promotion of self-fertilization is an evolutionary advantageous strategy such as the colonization of isolated regions and responds to stressful habitat conditions.The Lepisorus clathra