Peliosanthes revoluta (Asparagaceae), a new species from limestone areas in southwestern Guangxi, China

The genus Peliosanthes Andrews (1810: 605) belonging to the family Asparagaceae is represented by more than 70 species in tropical and subtropical Asia (IPNI 2019). In the past 15 years many species have been discovered and described from China, Cambodia, Laos and Vietnam (Tanaka 2004, Tamura et al. 2008, Averyanov & Tanaka 2012, Averyanov et al. 2013, 2015a, 2015b, 2017, Nguyen et al. 2017, Roy et al. 2017, Vislobokov 2016, Vislobokov et al. 2018). In September 2015, we collected plants of Peliosanthes growing in shadow, primary broad-leaved evergreen forests on rocky limestone mountains in southwestern Guangxi, China. They had fasciculate flowers in the axils and hence appears to be closely allied to P. teta Andrews (1810: 605), but after a close study, we found them differ clearly from the former in many significant diagnostic characters. We therefore consider the plants to represent an undescribed species and name them here.