Merced, A., Maldonado-Silvestrini, S. and Heartsill-Scalley, T. (2026) “Rediscovery of Sphagnum perichaetiale and S. trinitense (Sphagnaceae) in Puerto Rico”, Phytotaxa. Auckland, New Zealand, 781(1), pp. 80–88. doi: 10.11646/phytotaxa.781.1.5.