Medical and physical researches, or, Original memoirs in medicine, surgery, physiology, geology, zoology, and comparative anatomy . hany mountain atthe Portage Railway. In several respects, this speciesbears considerable analogy with the Pecopteris cistii, , Hist, des Veg. Foss., pi. 106, with the fol-lowing characters: P. foliislanceolatisbipinnatis; penniselongatis obtusis, abrupte desinentibus, pinnula terminalibrevissima elliptica vel subrotunda; pinnulis ellipticis velsuboblongis, basi connatis vel usque ad basin discretis,etiamve basi paululum contractis; pinnula infirma rac
Medical and physical researches, or, Original memoirs in medicine, surgery, physiology, geology, zoology, and comparative anatomy . hany mountain atthe Portage Railway. In several respects, this speciesbears considerable analogy with the Pecopteris cistii, , Hist, des Veg. Foss., pi. 106, with the fol-lowing characters: P. foliislanceolatisbipinnatis; penniselongatis obtusis, abrupte desinentibus, pinnula terminalibrevissima elliptica vel subrotunda; pinnulis ellipticis velsuboblongis, basi connatis vel usque ad basin discretis,etiamve basi paululum contractis; pinnula infirma rachipennarum inserta, vix alteris majori; nervo medio valdenotato; nervulis arcuatis bis furcatis, distantibus, tenuis-simis. With this description it will be only necessaryto draw the distinctive characters of the present species,which consists of a single specimen four inches long in thestalk, and one and a half inches wide between the extremi-ties of the leaves, each separate leaf being seven-eighths ofan inch long by two-eighths broad—approximate, thoughseparate, throughout their length : those of the P. cistii PI, FiV. /.
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Keywords: ., bo, bookcentury1800, booksubjectmedicine, booksubjectpaleontology
