GENERAL INTRODUCTION. 



The more common undcrshrubs (some of them growing to be 

 small trees) are : ^ Icn- Pcnnsylvaniciim, A. spicatiini, Prnnus pinnila, 

 P. Pennsylvanica, P. Virginiana, Spircca salicifolia, S. tomcntosa, 

 Riibtis odoratus, R. trifiorus, R. strigosjis, R. occidentalism R. I'illosus, 

 R. Canadensis, Rosa Carolina, Cratcegns coccinea, C fomenfosa, C. 

 crns-ga//i, Pyrns sanibncifolia, Amelancliiev Canadensis, ^-L Canaden- 

 sis hotryapinni, A. Canadensis ohlongifolia, Ribcs lacnstre, R. rnbnini, 

 Haniamelis Viiginica, Cornns circinata, C. s/olonifera, C paniculata, 



C. altcrnifolia, Lonicera ciliata, Dicrvilla trijida, Sauibitciis pnbens, 

 S. Canadensis, Vibnrmim Icntago, V. acerifolinni, ]\ opnius, J\ lan- 

 tanoides, Cephalanthns occidentalis, Gaylnssacia resinosa, I'accininni 

 Pennsylvanicurn, V. corymbostim , Arctostaphylos iiva-nrsi, Cassandra 

 calyculata, Andromeda polifolia, Kalniia angnsiijolia, K. glanca, Asa- 

 lia nndiflora, Rhodora Canadensis, Lednni latifoliuin, Apocynum 

 androsesmifolium, Ilex Icevigata, Coiylns roslrala, Carpi/rns Ameri- 

 cana, Afyrica gale, Alnns viridis, A. incana, Salix (several species), 

 and Taxiis baccata Canadensis. 



Of the smaller flowering plants the following are among the most 

 noticeable: Clematis Virginiana, Anemone Pcnnsylvanica, A. ncmorosa, 

 Hepatica triloba, Thalictrnni dioiciim, Ramincnhis flamrnnla reptans, 

 R. abortivns, R. rec2irvatns, Caltlia palnstris, Coptis trifolia, Aqnilegia 

 Canadensis, Actcea spicata rnbra, A. alba, Canlophyllnm thalictroidcs, 

 Nymphcea odorata, Nnphar advena, Sarracenia purpurea, Sangninaria 

 Canadensis, Dicentra cncnllaria, D. Canadensis, Dentaria diplivlla, 



D. laciniata, ^Irabis lyrata, J'iola rotnndifolia, ]\ blanda, ]\ Sel- 

 kerki, 1'. cncnllata, J', caiiina syhestris, I', rostrata, C Canadensis, 



\. pnbescens, Drosera rotnndifolia, D.lougifolia, Helianthemnm Cana- 

 dense, Hypericum pyramidatnm, IP. ellipticnm, II. perforalnm, Elodcs 



Virginica, Silenc inflata, ^Ircnaria Gnenlandica, A. lateriflora, Clay- 

 tonia Caroliniana, Geraninm Robertianum, Impatiens pallida, Oxalis 

 acctosella, Ampelopsis qninqnefolia, Celastrus scandens, Polygala patcci- 

 folia, Poteririm Canadense, Gcnm macrophyllum, Waldsteinia fraga- 

 rioides, Potentilla Norvcgica, P. Canadensis, P. tridentata, P. palnstris. 



