HIS 



("onvolvnliis arvensis (bindweed). Apocyiuim androsaemifolium (spread- 

 iiiS- (l(i.iibniH'). Verln'ua iirticat'folia (wliite verbeiiai. Kudbcckia hirta (cone 

 rl(i\vci-i. ami Lythnmi alatuin (Idosestrife). to-ethcr with tlie following 

 niesopliyric i;ioneers: Euiiatoriuiii pMrfulialuni ihoiiesci ). I'ilca puniila 

 (rich weed), and Inipatiens. 



At iilaccs wlicrc tlic swani]) is lictlcr drained its nltiiuate tendency is 

 indicated, notaldy at a point al.ont a (piarter ef a mile sontli of the south- 

 east cornel- ef the lalie. ^^'e see here black eaks ((^uercus coccinea tinc- 



i"ig.3. \ie\v .■^liowin-; rii-li mosophytic iiii'aili)\v rei-l;iiiiie(l IVuni tlie hilu' li(.lt<iin. Tliis 

 area is rapidly becoming more mesophytic and the remaining hydropiiylic plants are dying 

 out. In the background, on the morainic upland, is seen an oak-lii -kory fore.^t, with the 

 white oaks at the base and bla:-k oaks on sluix". It is proljablc tlmt the meadow has never 

 been forested. 



tnriai. wliile cal^s ((Juerciis ;illiai. silver niajile (.Veer dasycarpnini. syca- 

 more (IMatanus occidentalisi. waliint (.Indians nigra', liirkory. i o'son ivy 

 (Iilms Toxicodendron), richweed (Pilea pnmihu. Indian turnip (.\ri:-aenni 

 triphyllnni). Ma.y-apple (Podophyllum iieltatuni). \ io?a palmata. N'iola 

 jinliesceiis. Thesi' patches of mesephytic weeds arc siimctinu's feund 

 in the \'ei'y center of the swani]) at jlaccs \\i:ere the land is sunie- 

 wliat higher. Tl;e soil t-ontains a lai'ger amount of nieisture tlian 



