470 



Karl M. Wiegand and Arthur J. Eames 



Galium verum 



Galium Mollugo 



Sherardia arvensis 



Knautia arvensis 



Grindelia squarrosa 



Rudbeckia triloba 



Galinsoga cilia t a 



Chrysanthemum Leucanthemum (true) 



Artemisia biennis 



Artemisia Abrotanuin 



Artemisia serrata 



Carduus nutans 



Onopordum Acanthium 



Centaur ea Jacea 



Ccntaurca Jacea, var. pratensis 

 Ccntaurea Jacea, var. nigra 

 Centaur ea maculosa 

 Lapsana communis 

 Hypochaeris radical a 

 Apargia autumnale 

 Picris hieracioides 

 C lion dr ilia juncea 

 Lactuca scariola (true) 

 Crepis capillaris 

 Hieracium Pilosella 

 Hieracium pratense 

 Hie raciu m floren tinum 



RECENTLY ESCAPED CULTIVATED PLANTS 



The following cultivated plants are occasionally found growing wild, and in a few 

 cases are apparently established. 



Ornithogalum umbcllatum 

 Betula pcndula 

 A Inns vulgaris 

 Madura pomifcra 

 Humulus japonicus 

 Chenopodium Bonus-Henricus 

 Lychnis coronaria 

 Lychnis chalccdonica 

 Nelumbo lutea 

 Ribes odoratum 

 Ribcs nigrum 

 Filipendula Ulmaria 

 Rubus laciniatus 

 Rosa gallica 



Rosa canina 

 Prunus Mahalcb 

 Lathyrus latifolius 

 Acer platanoides 

 Hedera Helix 

 Impcratoria Ostruthium 

 Fraxinus excelsior 

 Syringa vulgaris 

 Convolvulus japonicus 

 Physostegia virginiana 

 Mentha gentilis 

 Linaria Cymbalaria 

 Loniccra japonica 

 Artemisia Abrolanum 



native plants, not segregates, added since the publication of 

 Dudley's flora, either overlooked by Dudley or having entered 

 the basin from the surrounding region in recent years 



Sparganium minimum 



Ruppia maritima, var. longipcs 



Triglochin maritima 



Calam agrostis hypcrborea 



Cyperus erythrorhizos 



Eleocharis quadrangulata 



Eleocharis olivacea 



Fimbristylis autumnalis 



Scirpus nanus 



Scleria pauciflora, var. caroliniana 



Carex aestivalis 



Carcx Muhlcnbergii, var. enervis 



Carex longirostris 



Carex Crawfordii 



Carex Schiveinitzii 



Juncus dichotomus, var. platyphyllus 



Juncus Torrcyi 



Juncus brevicaudatus 



Listera australis 



Corallorrhiza odontorhiza 



Microstylis unifolia 



Betula papyrifera 



Arceuthobium pusillum 



Spergularia alata 



Armoracia aquatica 



Spiraea lati folia 



Spiraea tomentosa 



Polygala sanguinea 



Evonymus atropurpureus 



Lythrum alatum 



