Nelumbago montanum (R. W. BROWN) MCIVER et BASINGER

Manchester, Steven R., 2014, Revisions To Roland Brown’S North American Paleocene Flora, Acta Musei Nationalis Pragae Series B 70 (3 - 4), pp. 153-210 : 161

Nelumbago montanum (R. W. BROWN) MCIVER et BASINGER

Nelumbium montanum R. W. BROWN was transferred to a new genus Nelumbago by McIver and Basinger (1993) who indicated that Nelumbium was inappropriate because it is simply an orthographic variation of Nelumbo . They illustrated an additional nice leaf from the Ravenscrag Formation of Saskatchewan, Canada. McIver and Basinger (1993) did not, however, indicate any nomenclatural change for Nelumbium tenuifolium LESQUEREUX , and they specifically excluded that species from the synonymy of N. montanum . Brown (1962, p 69) indicated that “there appears to be a close relationship between [ N. tenuifolium ] and Paleonelumbo macroloba KNOWLTON , and the former may be merely a variant of the latter.”

Platanaceae

Brown recognized only two species of Platanaceae , which he referred to as Platanus nobilis NEWBERRY and P. raynoldsii NEWBERRY. Subsequent studies indicate that the sycamore/plane tree family was diverse in the Paleocene of the Rocky Mountains and Great Plains region with at least six species readily distinguishable on the basis of foliar characters.