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Fruiting material of Philonotis esquelensis (Bartramiaceae, Bryophyta) discovered in Chile Boletín de la Sociedad
Jimenez,María S; Suárez,Guillermo M; Schiavone,María M.
Philonotis esquelensis, a species described from Argentina, is recorded for the first time for Chile. In this work the sporophyte is described and illustrated, amending the original description. SEM of spores, capsule, and peristome are here made. A distribution map of the species in southern South America is presented.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Capsule; Peristome; Setae; Spores; Sporophyte.
Ano: 2014 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-23722014000400004
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Reproductive output of mosses under experimental warming on Fildes Peninsula, King George Island, maritime Antarctica RChHN
Casanova-Katny,A.; Torres-Mellado,G. A.; Eppley,S. M..
BACKGROUND: Mosses dominate much of the vegetation in the Antarctic, but the effect of climatic change on moss growth and sexual reproduction has scarcely been studied. In Antarctica, mosses infrequently produce sporophytes; whether this is due to physiological limitation or an adaptive response is unknown. We studied the effect of experimental warming (with Open Top Chambers, OTCs) on sporophyte production on Fildes Peninsula, King George Island for four moss species (Bartramia patens, Hennediella antárctica, Polytrichastrum alpinum, and Sanionia georgicouncinata). To determine whether reducing cold stress increases sexual reproduction as would be predicted if sex is being constrained due to physiological limitations, we counted sporophytes for these four...
Tipo: Journal article Palavras-chave: Antarctica; Bryophyte; Climate change; Fildes Peninsula; King George Island; Sporophyte.
Ano: 2016 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2016000100013
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