REPORT OF THE STATE BOTANIST FOR I924 29 



and easily by plants migrating from somewhat similar conditions 

 on the coastal plain, rather than by plants from the adjacent Appala- 

 chian highlands to the south, where the soils were presumably 

 gravelly drifts, clays and cold humus. 



In passing, it should be remarked that the following plants in 

 Doctor Peattie's list should be definitely listed as occurring in the 

 Ontario lowlands, and their inclusion adds strength to his argument : 



Andropogon scoparius Rynchospora macrostachya 



Panicum spretum Nelumbo lutea 



Panicum nieridionale Cakile edentula 



Panicum albemarlense Hydrocotyle umbellata 



Echinochloa Walteri Linaria canadensis 



Ammophila arenaria Cirsium odoratum 

 Eleocharis interstincta 



I would add to Doctor Peattie's list the following plants which 

 occur in the Oneida lake region or in the Ontario lowlands of New 

 York, as additional elements of the coastal plain flora to be found 

 in the region of the Great lakes : 



Azolla caroliniana Meibomia Michauxii 



Cyperus filiculmis Sarothra Rcntianoides 



Scleria triglomerata Rhexia vir^inica 



Panicum Lindheimeri Nyssa sylvatica 



Panicum Ashei Trichostema dichotoma 



Panicum agrostoides Aster lincarifolius 



Panicum tennessense Panicum aculeatum 



Habenaria ciliaris Carex tonsa 



Saururus cernuus Carex laevivaginata 



Comptonia peregrina Cenchrus pauciflorus 



Ibidium gracilis Ipomoea pandurata 

 Sassafras Sassafras 



Regarding some of the other plants mentioned in Doctor Peattie's 

 list, there is a measure of doubt regarding either their being charac- 

 teristic plants of the coastal plain flora or their occurrence in the 

 Ontario lowlands, as for example : 



N'ias gracillima. Once collected near Albany, but un- 

 known from the Ontario lowlands. 



Carex exilis. This is, of course, occasional on the Ontario 

 lowlands, but is, like Viola lanceolata, Sangi^isorba 

 canadensis, Lycopodium inundatum, Utricu- 

 laria resupinata and a number of other species, more 

 characteristic of lake shores or acid bogs of the Adirondack plateau 

 region, as well as the coastal plain, and their migrations northward, 

 if it be assumed that such migrations have taken place, have evi- 

 dently followed along a different series of influences than merely 

 along the sandy and shore influences of the outlets of the glacial 

 lakes. 



Orontium aquaticum. This occurs in the Hudson river 

 northward to Saugerties, has been collected many years ago in Fulton 



