BOTANY OF DELAWARE COUNTY. 



The flora of Delaware County agrees so nearly with that of Chester County, 

 and the latter having been so fully displayed by Dr. Darlington in the last edition 

 of his Flora Ccstrku. the necessity of including in this work even a catalogue of 

 our plants may be doubted. There is, however, some difference between the 

 floras of the two counties, occasioned chiefly by the tide-water district in this 

 County, and the slate-hills and limestone of Chester County. It was therefore 

 concluded to give a simple catalogue of the Phcvnogamous, or flowering plants 

 of Delaware County, embracing the higher orders of our Cryptogamous, or 

 flowerless plants, with the localities of some of the more rare species. In arrang- 

 ing the catalogue, Gray"s " Manual of the Botany of the Northern United States," 

 (second edition,) has been substantially followed. A few plants have been put 

 in the catalogue on the authority of other persons, and a few possibly may have 

 been included which do not grow in the County, but it is trusted that the list 

 will be found generally correct. To Dr. Thomas P. James of Philadelphia, I am 

 indebted for that part of the catalogue which includes the mosses. 



CATALOGUE/ 



SERIES I. 



PH^NOGAMOl S OR FLOWERING PLANTS. 



CLASS I.— DICOTYLEDONOUS OR EXOGENOUS PLANTS. 



Caltha, L. 



palustris, L. (Marsh Marigold.) 

 Aquilegia, L. 



Canadensis, L. (Wild Columbine.) 

 Delphinum, L. 



Co7isolida, L. (Lark-spur.) 

 Hydrastis, L. 



Canadensis, L. (Yellow-root.) 



CiMICIFDGA, L. 



racemosa,! Ell. (Black-snakeroot.) 



ORDER MAGNOLIACE^. 

 Magnolia, L. 



glauca, L. (Sweet Bay), Tinicum. 



LiRIODENDRON, L. 



Tulipifera, L. (Tulip-poplar.) 



ORDER ANONACE.E. 

 AsiMiNA, Adans. 



triloba, Dunal. (Papaw.) Near Dar- 

 by creek, on the farm of the 

 heirs of I. Maris, dec'd, in Mar- 

 pie township. 



• Species in italics are naturalized. 



t A remarkable variety of this plant, with finely dissected leaves, has been found growing in 

 Upper Darby. It has not ytt been observed to flower. 



ORDER RANUNCULACE^. 



Clematis, L. 



Virginiana, (Virgin's Bower.) 



Anemone, L. 



Virginiana, L. (Tall Anemone.) 

 nemorosa. L. (Wind-flower.) 



Hepatica, Dill. 



triloba, Chaix. (Liverwort.) 



Thalictrum, Tourn. 



anemonoides, Michx. (Anemone.) 

 dioicum, L. (Meadow-rue.) 

 Cornuti, L. (Meadow-rue.) 



Ranunculds, L. 



aquatilas, L. (Floating Crow-foot.) 

 Flammula, L. (Spearwort.) 

 abortivus, L. (Small-flowered.) 

 sccleratiis, L. (Cellery-leaved.) 

 recurvatus, Poir. 

 Pennsylvanicus, L. 

 fascicularis, Muhl. 

 repens, L. 



bulbosus, L. (Common Butter-cup.) 

 acrii, L. (Tall Crow-foot.) 



