uncommon. Botween tlio " Mountain" and Lowiston, the explorer 

 will find Rannwiculvs multifidus, Pursh. Xartthoxylwm America/num, 

 Mill. Houstonia ccerulea, L. and Asplenium ebeneum, Ait., rare 

 plants in western New York. Queenston Heights have yielded us 

 Anemoriella ihalictroides, Spach. Asimina triloba, Dunal, Lupirms 

 perennis, L., Frasera CaroUnensis, Walt, and Celtis occidentalis, L., 

 — species scarcely found elsewhere in our vicinity. Of Foster's 

 Flat, above Queenston, it may be said that the spring seems to 

 visit its rocky fastnesses some weeks earlier than the table-land 

 above. Among its uncommon plants, it may be mentioned that 

 Professor Macoun and Dr. Burgess have detected Aspidiwm 

 Lonchites, Swartz, and Aspidium Bootii, Tuckm., — ferns whose 

 accustomed range is a hundred miles northward. The woods near 

 the whirlpool, on the Canadian side, produce in abundance Ceras- 

 tium arvense, L., Arctostaphylos Ura-ursi, Spreng., Castilleia cocchiea, 

 Spreng., and the only sassafras trees known in the neighborhood 

 of the Falls. The low land, near Clifton, on the Canadian side, 

 only a few inches higher than the river, affords such uncommon 

 plants as Gentiaxa .semi/it, Gunner, and Parnassia Caroliniana, 

 Michx. Galamintlia NuttalJ'd, Benth., still grows on the damp 

 rocks, near the border of the river, and Gerardia purpurea, L., 

 and Utricularia cornuta, Michx., appear sparingly in the wet and 

 oozy soil near by. 



In the preparation of this list, the practice has been followed, 

 now almost universal, of indicating introduced plants, (which it 

 will be seen are a large number) by giving their names in small 

 capitals. The later changes in the nomenclature of the species 

 have also been adopted, adding however, (in parentheses) the names 

 under which they were described in the last edition of Gray's 

 Manual. 



Of the 909 species of plants named in the Catalogue 758 are 

 native and 151 foreign. 



The following table exhibits, synoptically, the number of species 

 and genera belonging to each natural family of plants mentioned 

 in the Catalogue. 



