BOTANICAL GEOGRAPHY, 
29 
Delaware in New’ York at Utsiantha Lake in Oquage mountains.— The Kis- 
kanom or Catskill mountains of New York. — 6. The Dismal Swamp of De- 
laware. — 7. Sherman Valley in the Alleghanies. — 8. The Cotocton moun- 
tains of Maryland and Virginia cut through by the Potomac. — 9. Valley of 
Loyalhannah in west Pennsylvania. — 10. Falls of the river Potomac. — 11 . 
Falls of the river Cumberland in Wasioto, hills of east Kentucky — 12. The 
serpentine rocks of Chester and Maryland! — 13. The Wiconisco, Tuscarora 
and Central mountains of the Alleghanies. — 14. The summit of the Allegha- 
nies in Maryland. — 15. The Cacapon mountains of Virginia. — 16. The prai- 
ries of Bigbarren river in Kentucky. — 17. The Wasioto Hills and mountains 
of Kentucky, or Knob Hills, with their knoblicks. — 18. The banks of the 
Wabash, and glades near them. — 19. The neck of land between the mouths 
of Cumberland and Tennessee rivers, with the glades of South Kentucky 
and Tennessee. — The shores of Lake Erie near Sandusky. 
I hardly need add the far famed fall of Nia- 
gara, the head and falls of the Hudson, the Ta- 
conick and Mattawan mountains, and in fact 
every ridge of the Alleghanies. They are all 
interesting botanical spots to visit ; but in or- 
der to detect all their plants, you must visit 
them at least three times, in the Spring, Sum- 
mer and Fall, or every month from May to Oc- 
tober, and even some plants of short floral du- 
ration may then escape you. How can we then 
hope to know all our productions, except gra- 
dually and by repeated explorations. I have 
never been able to meet the Hamiltonia , nor 
Centunculus , nor Parnassia in full bloom, and 
many rare plants were only found once by me 
during 24 years of exploration. 
It is a mistake to imagine that all our plants 
are sylvan or nemorose, because forests abound 
in our Continent, The plants growing under- 
neath the shade of trees are not even the major 
number, and we must look for many in mea- 
dows, glades, fields, swamps, sea shores, banks 
of rivers, brakes, (these are peculiar places in 
woods or glades where ferns, canes or grasses 
prevail,) salt licks, rocky hills and cliffs, moun- 
tains tops, near springs and brooks. 
The distribution of the plants in these loca- 
lities, and the distribution of peculiar tribes 
