LONGEVITY OF SUBMERGED SEEDS 



333 



. I ndrupogon scoparius 



Asclepias pulchra 



Aster juncea 



Aster latcriflorus 



Aster mullijlorus 



Aster patens 



Aster salicijolius 



Aster sp. 



Bidens cernua 



Bidens frondosa 



Chenopodium a nthellninticum 



Chrysanthemum Lc ucanthemum 



Cuscuta Gronovii 



Cyperus diandrus 



Cyperus esculentus 



Daucus Carota 



Eleocharis acicularis 



Epilohium adenocaulon 



Erechtites hieracifolium 



Eupatorhim perfoliatum 



Euthamia gramin i folia 



Festuca sp. 



Gratiola aurea 



Gnaphalium sp. 



Hypericum mutilum 



Isnardia palustris 



Jiincus bufonius 



Juncus Gerardi 



J uncus tenuis 



Lappa minor 

 Leptilon Canadense 

 Linaria Canadensis 

 Ludwigia alterni folia 

 Lycopus rubellus 

 Mimulus ringens 

 Mtihlenbergia diffusa 

 Oenothera biennis 

 Panicum capillare 

 Panicum Tennesseense 

 Phytolacca decandra 

 Plantago major 

 Plantago Rugelii 

 Poa compressa 

 Polygonum Hydropiper 

 Potentilla Monspcliensis 

 Rosa sp. 

 Rumex crispus 

 Rumex obtusifolius 

 Scirpus atrovirens 

 Solanum Dulcamara 

 Solidago_ rugosa, 

 Triadenunn Virginicum 

 Trifolium pratense 

 Urtica gracilis 

 Verbascum Thapsus 

 Verbena urticaefolia 

 Veronica serpylUfolia 

 Viola papilionacea domestica 



On March 27, 1905, the jar was removed to the skyhght room 

 of the laboratory which was being used at that time as a prop- 

 agating house. The water was carefully drained off, exposing 

 the seeds to an abundance of free oxygen, after 130 days of sub- 

 mergence. In three days numerous germinations appeared and 

 samples of the different kinds of seedlings were reset, from time 

 to time, to boxes of soil, to grow until their identity could be de- 

 termined without question. The following 24 species were 

 represented among the seedlings thus secured. 



Aster 2 spp. 



Bidens cernuum 



lUdens frondosa 



Chenopodi um anthelmintic um 



Cuscuta Gronovii 



Cyperus diandrus 

 Cyperus sp. 

 Daucus Carota 

 Eupatorium perfoliatum 

 Isnardia palustris 



