> MICHIGAN ACADEMY OF SCIENCE. 183 



Pyrola secunda L. One-sided Wintergreen. — Frequent in rich woods. 



Pyrola chlorantha Sw. Greenish-flowered Wintergreen. — Occasional in 

 dry open woods, especially among pines at Port Franks. Newton Tripp. 



Pyrola elliptica Nutt. Shin Leaf. — Frequent in dry woods and thickets. 



Pyrola americana Sweet. Round-leaved Wintergreen. — Frequent in dry 

 open woods and thickets. 



Pyrola asarifolia incarnata (Fisch.) Fernald. Bog Wintergreen. — Occa- 

 sional in tamarack swamps. Noticed in very wet places at Port Franks. 



Monotropa uniflora L. Indian Pipe. Corpse Plant. — Frequent in rich 

 open woods and thickets. 



Monotropa hypopitys L. Pinesap. False Beech Drips. — Occasional along 

 Aux Sables River. Apparently rare. N. Tripp. Pterospora andromedea 

 Nutt., Pine Drops, not yet noticed in Lambton Co., but found under pines 

 near Port Huron, Mich. 



Ledum groenlandicum Oeder. Labrador Tea. — In a very Avet thicket, 

 north of Sarnia. Apparently rare. 



Kalmia polifolia Wang. Pale Laurel. — Occasional in very wet places. 

 Newton Tripji. 



Andromeda glaucophylla Link. Bog Rosemary. — Occasional in very wet 

 places. Newton Tripp. Formerh' included with A. polifolia L. 



Chamaedaphne calyculata (L) Muench. Leather Leaf. — Occasional in 

 boggy places. Newton Tripp. 



Epigaea repens L. Mayflower. Trailing Arbutus. — Occasional along the 

 shaded sand dunes of Lake Huron. 



Caultheria procumbens L. Teaberry. — Common on poor and sandy 

 ground, in open woods and thickets. Known here and in Michigan as 

 "wintergreen." 



Arctostaphyles uva-ursi (li.) Spreng. Bearberry. — Common in poor and 

 sandy ground along the Lake Huron shore. Very abundant at Port Franks 

 and on sand dunes. A good sand binder. 



Chiogenes hispidula (L.) T. and G. Moxie Plum. — Creeping snowberry. 

 Occasional in tamarack swamps and boggy places. 



Gaylussacia frondosa (L.) T. and G. Blue Tangle. Dangleberry. — Re- 

 ported found near Sarnia by Prof. John Macoun. Apparently infrequent. 

 See contributions to Canadian botany XVI 218. 



Gaylussacia baccata (Wang.) C. Koch. Black Huckleberry. — Abundant 

 usually on dry and sandy ground, in open woods and thickets. 



Vaccinium pennsylvanicum Lam. Dwarf Blueberr3^ — Common on poor 

 and sandy ground, especially near by and on the sides of shaded and fixed 

 sand dunes along Lake Huron shore. 



Vaccinium canadense, Kalm. Sour-top. Canada Blueberry. — Occasional 

 in dry ground at Port Franks. Newton Tripp. 



Vaccinium corymbosum L. High Blueberry. High-bush Huckleberrj'. — 

 Frequent in swamps and damp open woods. 



Vaccinium macrocarpon Ait. American Cranberry. — In bogs, swamps, and 

 wet places. Formerly very abundant. Becoming scarce on account of 

 drainage and fires. 



Primulaceae. Primrose Family. 



Samolus floribundus HBK. Water Pimpernel. — Occasional, usualh' along 

 the muddy Ijanks of streams. Newton Tripp. 

 Lysimachia terrestris (L.) BSP. Bulb-bearing Loosestrife. — Frequent in 



