MICHIGAN ACADEMY OF SCIENCE. 127 



408. Pyrola elliptica Nutt. Sedge zone, Bog Succession: near Tobin's 

 Harbor. 



409. Pyrola asarifolia Michx. Bog forest; sedge zone of Bog Succession. 



410. Pyrola asarifolia Michx. var. incamata (Fisch.) Fernald. 



411. Monotropa unifiora L. Indian Pipe. Bog forest; climax forest. 



412. Monotropa Hypopitys L. Pinesap. Climax forest: Duncan Bay. 



413. Ledum groenlandicum Oeder. Labrador Tea. Shrub zone of Bog 

 Succession, very abundant, especially where sphagnum is abundant; oc- 

 casional on margins of rock pools. 



414. Kalmia polifolia Wang. Pale Laurel. Shrub zone of Bog Succession, 

 not abundant. 



415. Andromeda glaucophylla Link. Andromeda. Abundant in shrub 

 zone of Bog Succession, in all bog localities; also occasionally on rock pool 

 margins. 



416. Chamaedaphne calyculata (L.) Moench. Leather Leaf. The most 

 abundant of the bog shrubs. 



417. Arctostaphylos Uva-urisi (L.) Spreng. Bearberry; Kimiikimiick. 

 Important rock shore crevice plant, becoming one of the principal consti- 

 tuents of the heath mat, and persisting into the xerophytic forest stage; 

 a'so upon bare burned ridges. 



418. Chiogenes hispidula (L.) T. and G. Creeping Snowberry. Bog for- 

 est; sphagnum-shrub zone of Bog Succession. 



419. Vaccinium pennsylvanicum Lam. Early Blueberry. Rock shore cre- 

 vice plant and a constituent of the heath mat. 



420. Vaccinium canadense Kalm. Velvet-leaf Blueberrj'. Heath mat and 

 rock shore crevices. 



421. Vaccinium uliginosum L. Bog Bilberry. Rock shores, especially 

 around rock pools. 



422. Vaccinium Oxycoccos L. Small Cranljerry. Sphagnum zone of Bog 

 Succession. 



423. Vaccinium Oxycoccos L. var. intermedium Gray. 



424. Vaccinium macrocarpon Ait. Large Cranberr}-. Bog northwest of 

 Tobin's Harbor. 



Primulaceae. Primrose Family. 



425. Primula mistassinica Michx. Mistassini Primrose. Sheltered shore 

 crevices and margins of rock pools. 



426. Lysimachia terrestris (L.) BSP. Loosestrife. Sedge zones of Bog 

 and Delta Swamp Successions. 



427. Lysimachia thyrsiflora L. Tufted Loosestrife. Shallow water in bog 

 lakes and sheltered bays. 



428. Trientalis americana (Pers.) Pursh. Star Flower. Climax forest; 

 bog forest. 



Oleaceae. Olive Family. 



429. Fraxinus americana L. AVhite Ash. Very old burn west of Sumner 

 Lake; bog forest: Lake Eva. Rare. 



430. Fraxinus nigra Marsh. Black Ash. Delta swamp forest, common 

 and characteristic. 



Gentianaceae. Gentian Family.- 



431. Gentiana linearis Froel var. latifolia Gray. Gentian. Park Place; 

 McCargoe's Cove; Sargent Lake trail near Rock Harbor. 



