, 
uncomnion. Between the “Mountain” and Lewiston, the explorer 
will find Rannunculus multifidus, Pursh. Xanthoxylum Americanum, 
Mill. Houstonia cerulea, L. and Aspleniwm ebenewm, Ait., rare 
plants in western New York. Queenston Heights have yielded us 
Anemonella thalictroides, Spach. Asimina triloba, Dunal, Lupinus 
perennis, L., Frasera Carolinensis, 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 
Proressor Macoun and Dr. Burarss have detected Aspidium 
Lonchites, Swartz, and Aspidiwnm 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., Castillera coccinea, 
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 Gentiana serrata, Gunner, and Parnassia Caroliniana, 
Michx. Calamintha Nuttallii, 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. 
