Mnium subpunctatum Card. & Broth., described from the Andes of Patagonia, belongs to Cinclidium Sw. and is evidently conspecific with C. stygium Sw. The typification of M. subpunctatum is suggested. In the course of a revision of the Mniaceae (Koponen, 1968a,b) it appeared that the only taxon from the southern hemisphere which could belong to the genus Rhizomnium (Broth.) Kop. is Mnium subpunctatum Card. & Broth. In the description of the (Cardot & Brotherus, 1923) both the mention of section Integerrimae and the use of the phrase species M. punctato (L., Schreb.) Hedw. affinis indicate the supposed relationship. However, study of the type material revealed that it belongs neither to Mnium Hedw. nor to Rhizomnium but to the genus Cinclidium Sw. The only Cinclidium known from South America is C. stygium Sw. It was first recorded by Cardot (1908) and later by Cardot and Brotherus (1923). Roivainen (1954) published numerous vegetational records including C. stygium from Tierra del Fuego, and I was able to study his rich material which includes fruiting specimens. A preliminary comparison with material from the northern hemisphere did not reveal any definite differences which would suggest that the northern and southern stocks could be accepted as specifically different (cf. also Cardot, 1908). The Mnium subpunctatum specimens seem to differ from Cinclidium stygium in leaf shape. In young leaves (Fig. 1-3) the acute apex is similar to that in C. stygium (Fig. 7-8), but in old leaves the apex is damaged, evidently by some mechanical factor, and, at first sight, the leaves appear to be obtuse or apiculate (Fig. 4). Possibly this misled Cardot and Brotherus into describing a new taxon. The areolation of the lamina and the border (Fig. 5-6) is similar to that in Cinclidium. The presence of an elongate area of macronematous initials, a unique feature of the genus Cinclidium (Koponen, 1968a), confirms that this is the genus in question. Two specimens are mentioned in the protologue of Mnium subpunctatum, both collected by Carl Skottsberg: Patagonia andina: Terr. Sta Cruz, Laguna de los Patos haud procul Rio Carb6n, alt. c. 700 m. s. m., copiose in aqua (610) (H-BR, PC, S-PA); ad fontes fl. Rio Bagnales, in paludoso (= 611 in Pc?). All the specimens are sterile. The largest and most representative specimen is the 1 This is a paper from the Department of Botany, University of Helsinki. I thank Custos Heikki Roivainen, Ph.D., and Dr. J. Dickson for their help during this study and the curators of the herbaria who forwarded specimens for my use. 2 Department of Botany, University of Helsinki, Unionink. 44, Helsinki 17, Finland. This content downloaded from 157.55.39.70 on Tue, 06 Sep 2016 05:02:09 UTC All use subject to http://about.jstor.org/terms 62 THE BRYOLOGIST [Volume 72