Ptilidium trichophyllumMitt., J. Proc. Linn. Soc. 5: 102. 1861.
Distribution: India [AR: West Siang, on way to Yapik from Shikar, Menchuka (between Jupuk and Damingla, Yarlaung berween Shastri camp and Trek junction), Anjaw, on way to Chaglagam from Mailiang, on way to Seti from Yasong, on way to Jachhup from Hotspring (D.K. Singh & al., 2012; Majumdar & al., 2013; D. Singh & al., 2014; D.K. Singh & Singh Deo, 2014); HP: Koksir, Silrundi, Gurdhar Pass, Jala to Ganges Valley (Kashyap & R.S. Chopra, 1932; G. Asthana & al., 2013), GHNP, Sainj Valley (D.K. Singh & S.K. Singh, 2008a), Jalori pass (S.K. Singh & D.K. Singh, 2009; D.K. Singh & S.K. Singh, 2015); JK: Gulmarg (Dar & al., 2002); SK: without specific locality (Mitten, 1861 as Ptilidium trichophyllum), West Sikkim, Khangchendzonga BR, Dzongri ‘Jongri’ – Olothang (Hattori, 1966), East Sikkim, Kyangnosla (D.K. Singh & al., 2008), Tsomgo lake, Padamchen, Zaluk, Tuku La, North Sikkim, Chatten, Yumthang, Shingba Rhododendron Sanctuary (D. Singh & al., 2014); UT: Dehradun (Kashyap & R.S. Chopra, 1932; G. Asthana & al., 2013), on way to Valley of Flowers NP (G. Asthana & al., 2013); WB: Darjeeling (R.S. Chopra, 1938b; Long & Grolle, 1990)], Bhutan (Long & Grolle, 1990), China (Piippo, 1990), Hawaii (Staples & Imada, 2006), Indonesia (Söderström & al., 2010), Japan (Yamada & Iwatsuki, 2006), Korea (Song & Yamada, 2006), Nepal (Pradhan & Joshi, 2009), Papua New Guinea (Grolle & Piippo, 1984), Philippines (Tan & Engel, 1986), Russia (Konstantinova & al., 2009), Taiwan (Wang & al., 2011), Africa (Wigginton, 2009), Europe (Söderström & al., 2007), North America (Stotler & CrandallStotler, 1977).
