RT Journal Article T1 Orthotrichum Norrisii (Orthotrichaceae), A New Epiphytic Californian Moss A1 Medina Bujalance, Rafael A1 Lara, Francisco A1 Mazimpaka, Vicente A1 Garilleti, Ricardo AB A new Orthotrichum species, O. norrisii, is described from California. The new taxon is recognized by a unique combination of sporophytic characters: capsule narrowly cylindrical and not contracted below mouth when dry, exothecial bands narrow and formed by 2(–3) cell rows, peristome with eight pairs of exostome teeth and eight endostome segments, stomata cryptopore and located in the lower part of the urn, lid plane and rostrate and vaginula hairy. Widely distributed throughout California, the new taxon has been overlooked and confused with O. tenellum. PB BioOne SN 0007-2745 YR 2008 FD 2008 LK https://hdl.handle.net/20.500.14352/95381 UL https://hdl.handle.net/20.500.14352/95381 LA eng NO Medina, Rafael, et al. «Orthotrichum Norrisii (Orthotrichaceae), A New Epiphytic Californian Moss». The Bryologist, vol. 111, n.o 4, diciembre de 2008, pp. 670-75. https://doi.org/10.1639/0007-2745-111.4.670. NO This work was funded by the Spanish Ministry of Education and Science, Grants CGL2004-03513 and CGL2007-61389 NO Ministerio de Educación y Ciencia (España) DS Docta Complutense RD 3 jul 2025