Platyhypnum

{{Short description|Genus of mosses}}

{{Automatic taxobox

| taxon = Platyhypnum

| authority = Loeske

| synonyms_ref =

| synonyms = *Ochyraea Váňa

• Platyhypnidium M.Fleisch.

}}

Platyhypnum is a genus of mosses in the family Amblystegiaceae.

Previously accepted as Ochyraea, that genus was named in honour of Ryszard Ochyra (born 1949), a Polish bryologist{{cite book |last=Burkhardt |first=Lotte |title=Eine Enzyklopädie zu eponymischen Pflanzennamen |trans-title=Encyclopedia of eponymic plant names |publisher=Botanic Garden and Botanical Museum, Freie Universität Berlin |year=2022 |isbn=978-3-946292-41-8 |url=https://doi.org/10.3372/epolist2022 |format=pdf |language=German |location=Berlin |doi=10.3372/epolist2022 |access-date=January 27, 2022}} and was circumscribed by Jiří Váňa in J. Bryol. vol.14 on page 261 in 1986. They have been found in Europe and across Russia.{{cite web |title=Ochyraea Vána |url=https://www.gbif.org/species/2681634 |website=www.gbif.org |access-date=27 August 2022 |language=en}}