160 
FIFTEENTH REPORT. 
July 14th. 
Agrostis stolonifera (A. vulgaris). 
Bromus ciliatus. 
Bromus purgans. 
A s c 1 ep i a s i n c a r n a t a . 
Ivoellia Virginiana. 
Campanula a p a r i n o i d es . 
Rudbeckia liirta. 
July 28th. 
Larix laricina. 
A few scattering trees are still standing in the original swamp and 
on the Hood plain near the river banks. Young trees are beginning 
to spring up in the potent ilia moor. 
( 'henopodium hybridum. 
Cicuta maculata. 
Veronica Virginica. 
Lonicera glaucescens. 
Liatris spicata. 
Also through the marl section. 
Aster juneeus. 
Rudbeckia liirta, Var. pulcherrima. 
Also in the marl bed. 
August 4th. 
Filix Thelypteris. 
Also in the reed swamp. 
Alisma Plantago-aquatiea, Var. trivialis. 
With the last. 
Cornus alternifolia. 
September 2nd. 
Rumex Britannica. 
Epilobinm coloratum. 
Conioselinum Chinense. 
Gentiana crinita. 
Also through the marl section. 
Chelone glabra. 
Eupatorium maculatum. 
Eu]»a tori u m per folia turn. 
Solidago altissima. 
Soli dago aspera. 
Solidago aspera, Var. axillaris. 
Solidago Ohioensis. 
Solidago Ridel lii. 
Solidago u liginosa. 
Aster paniculatus, Var. bellidifolius. 
Aster punicens. 
Erechtites hieracifolia. 
Prenanthes alba. 
October 6th. 
Aster Novae- Bel gii. 
Aster paniculatus, Var. simplex. 
