1898] I05 



NOTES ON THE FLORA OF LONG POINT ISLAND, 

 LAKE ERIE, PROVINCE OF ONTARIO, CANADA. 



By LeROV J. I)OUGHNER. 



I arrived here about the middle of May and took up my 

 residence at " the Bluffs." This is the most central part of the 

 Point, and is situated on dry land. The island is about twenty 

 miles long, the upper part of which is almost entirely marsh 

 while the eastern part is covered by dense forests of cedar and 

 birch. These two trees are the most common on the island, al- 

 though red cedar is a close second. Oak is very abundant and 

 pine was originally, but was removed about thirty }-cars ago. 

 There are no hickory nuts, no chestnut, and but one tree each 

 of beech and butternut. There is also a single representative 

 of the nettle-tree, on Ryerson's Island. I am preparing a cata- 

 logue of the sum.mer and autumn plants of the island which 1 

 shall send in the fall. Meantime my botanical notes will be 

 brief. The commonest plant on the island is Indian Puccoon, 

 Lithospcruinin canesccns, Lehm. Convolvulus sepiuni, L., is also 

 very common, principally about " The Cottage." Epiphegus 

 Virgiiiiana, Bart., is not infrequent and in abundance is about 

 equalled by Pogoniaop Idoglossoides. Calopogon pulchellus, R. Br., 

 is common on the southern side. Utricularia vulgaris, L., is of 

 course common, but not so much as U. Cornuti, Michx. An 

 ordinarily rare plant, Pin-drops, Pterospora Andromedea, Nutt., is 

 so frequent on the island as to be almost termed common. I 

 have found one specimen each of Cypripediuni parvijloruvi, 

 Salisb., and C. arietiunm, R. Br. Sparganium eurycarpuin and 



Pontcdcria heteranthcra are very common, and I have found in 

 great numbers flowers of Levina perpusilla. I have observed 

 carefully one remarkable fact of the island which seems to me to 

 be such a remarkable instance of the adaptation of plants to insure 

 cross-fertilization as to well merit the notice of the Club. On 

 my arrival I perceived that the staminate flowers of the Common 

 Meadow Rue, Tlialictruvi dioicum, were growing higher on the 

 ridges and more to the eastward than the pislillate. The only 

 explanation I could offer was that aftbrded by the winds which 

 are almost invariably from the east when the Meadow Rue 

 flowers. 



