Molecular and morphological evidence on the status ofBryum mildeanumJur. and records revision in the Iberian Peninsula

Abstract

Bryum mildeanum, a rare species in the Iberian Peninsula, has frequently been confused with B. alpinum. In this study we provide new gametophytic and sporophytic (obtained by SEM) characters that can be used to separate the two and B. mildeanum is described and lectotypified. A molecular study based on two chloroplast DNA regions (trnL-F and trnG) was performed. The results suggest the evolutionary independence of B. mildeanum and B. alpinum, and the separation of both from B. gemmiparum, a species generally placed in the same subsection (Section Bryum, subsection Alpiniformia) as the other two.

Mosses of the Mediterranean, an Annotated Checklist

“…Bryum mildeanum has been included in the genus Imbribryum based on molecular data published byGuerra et al (2008). Bryum torquescens and Bryum moravicum have not yet been sequenced, and although they are morphologically very close to Ptychostomum capillare, neither species has yet been transferred to this genus.Bryum moravicum Podp., V≥stn.…”

An annotated checklist of bryophytes of Europe, Macaronesia and Cyprus

“…Generic allocations based on morphology alone are therefore prone to error, some through convergent evolution of distant relatives, others by rapid change among close relatives. These findings have not been refuted by subsequent studies and parts of the sequence data used have been confirmed and supplemented by other workers (Guerra, Jiménez-Martínez, Cano, Brugués 2008; Guerra, Jiménez-Martínez, Cano, Jiménez-Fernández 2011; Wang and Zhao 2009; Bell, Long and Hollingsworth 2013). Thus the generic taxonomy adopted here is based mainly on molecular data.…”

Bryophyte flora of Catalonia (northeastern Iberian Peninsula): Checklist and Red List

“…At least seven locations (EOO= ca. 2950 km 2 ; AOO= 28 km 2 ) are known in Pyrenees and Montseny massif (Casas Sicart, 1960;Casanovas Poch, 1991;Guerra et al, 2008), where it occurs on wet soils and rocks, between 500 and 1950 m a.s.l. A report from Llorenç del Munt requires confirmation.…”