TAYLOR: WHITE-CEDAR SWAMP AT MERRICK, LONG ISLAND 8 1 



But it is the character and composition of the undergrowth 

 that is of chief interest. With Rhododendron and Magnolia 

 lacking, the dominant undergrowth is as follows: 



Woody 



Clethra alnifolia 

 Gaylussacia Jrondosa 

 Alnus rugosa 

 Azalea nudiflora 

 Azalea viscosa 

 Benzoin aestivale 

 Hamamelis virginiana 

 Vihnrnum dentatum (rare) 

 Eubotrys racemosa 

 Toxicodendron Vernix (rare) 

 Sambucus canadensis 

 Aronia atropurpurea 



PLANTS 



Aronia arbutifolia 

 Nemopanthiis mucronata 

 Ilex laevigata 

 Ilex glabra 

 Ilex verticillata 

 Vaccinium atrococcum 

 Vaccinium atlanticum 

 Rubus hispidus 

 Vitis aestivalis 

 Toxicodendron radicans 

 Smilax rotundifolia 

 Parthenocissus quinquefolia 



Herbaceous plants 



Dryopteris simulata 

 Woodwardia areolata 

 Woodwardia virginica^ 

 Spathyema foetida 

 A risaema triphyllum 

 Carex Collinsii^ 

 Carex Howei 

 Unifolium canadense 



Viola pallens 

 Viola papilionacea 

 Trientalis americana 

 Panicularia obtusa 

 Lilium canadense 

 Vagnera racemosa 

 Triadenum virginicum 

 Mitchella repens 



The list is doubtless not complete but it serves as a guide to 

 the most characteristic and commonest species in the swamp, 

 which seems to have reached its climax or ultimate development, 

 there being practically no open places in it, and being apparently 

 farthest removed from the open-water, initial stages of white- 

 cedar swamps described from near Woods Hole (9). 



The odd feature of this aggregation of plants is that a compara- 

 tively cool habitat, many degrees cooler than the hot coastal 

 gravels of the adjacent region, is here conditioned by the stream, 

 and by three southern trees that are much nearer their northern 



1 The three ferns reported by Mrs. Britton and Miss Mulford (12). 



2 Carices kindly determined by Mr. K. K. Mackenzie. 



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