Studies in Austral Bryaceae (Bryopsida). IV. New records from the Falkland Islands (Islas Malvinas), with a phytogeographic analysis of the family Author Spence, John R. California Academy of Sciences, Department of Botany, 55 Music Concourse Drive, Golden Gate Park, San Francisco, CA 94118 - 4503 (United States) bryum 500. js @ gmail. com js@gmail.com text Cryptogamie, Bryologie 2022 2022-11-30 20 15 211 224 http://dx.doi.org/10.5252/cryptogamie-bryologie2022v43a15 journal article 10.5252/cryptogamie-bryologie2022v43a15 1776-0992 7822527 * Ptychostomum gayanum (Mont. ex Müll.Hal.) Ochyra & Bedn. -Ochyra SPECIMENS EXAMINED. — Falkland Islands . West Falkland , Crooked Inlet , Roy Cove , 51°32’56.4”S , 60°23’6”W , in pasture with gorse , 15 m a.s.l., 17.I.2011 , 11/281 ( MNH ); East Falkland , Mt. Kent, east of gate at summit , 51°40’26.4”S , 58°6’25.2”W , on ground in flush , 432 m a.s.l., 20.I.2015 , 15/54 ( MNH ). NOTES Common in Tierra del Fuego and on Îles Kerguelen but also extending north to south-central Chile ( Müller 2009 ). It is an autoicous species related to Ptychostomum pseudotriquetrum (Hedw.) J.R.Spence & H.P.Ramsay ex Holyoak & N.Pedersen , but with a reduced peristome and larger spores. A southern hemisphere/South American temperate-subantarctic (Îles Kerguelen only) species.