Flora of St. Helen's Island. 371 



(Rhus typhina, L.), aro all common. The common lilac 

 (Syringa vulgaris,) and buckthorn (Rhamnus cathartica, 

 L.), are found near the old officers' quarters, where they 

 were evidently planted for ornamental purposes. The 

 common mountain maple (Acer spicatum, Lam.), is quite 

 common through the woods. 



The other plants found present no other features of inter- 

 est beyond their representation there, as shown in the follow- 

 ing enumeration : — 



Acer dasycarpum, Ehrh. 



" saccharinum, Wang. 



" spicatum. Lam. 

 Achillsea millifolium, L. 

 Ampelopsis quinquifolia, Michx. 

 Anemone virginiana, L. 

 Aquilegia canadensis, L-, very common. 

 Archangelica gmelini, D C, abundant. 

 Artemisia vulgaris, L., very common. 

 Arctium lappa, L. 



Asclepias cornuti, Decaisne, very common. 

 Aspidium filix-mas, Swartz. 

 Betula populifolia, Ait. 

 Carya alba, Nutt 

 Celtis occidentalis, L. 

 Cnicus arvensn, Hoffm. 

 Crataegus coccinea, L. 

 " tomentosa, L. 

 Crataegus oxycantha, L. Introduced here for ornament. One of 

 the few places about Montreal where it has become established. 

 Cornus circinata, L'Her. 

 Cynoglossum officinale, L. 

 Erigeron philadelphicus, L. 

 Fagus ferruginea, Ait. 

 Geranium maculatum, L. 

 Gleditschia triacanthos, L. 

 Impatiens fulva, Nutt. 

 Inula helenium, L., very common. 

 Juglans cinerea, L., occasional. 



" nigra, L., rare. 

 Lithospermum officinale, L., rather common. 

 Menispermum canadense, L- 

 Onoclea sensibilis, L. 



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