312 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



PYROLA. Wintergreen; Shin Leaf. 



P. asarifolia Michx., var. incarnata (Fisch.) Fernald. — Cold 

 shaded bog, Stockbridge. 



P. chlorantha Sw. — Leaves rounded to base and apex, rather 

 numerous (4 to 11) in a rosette (vid. Rhodora, 22: 51, 1920). 



Woods, often near swamps; common. 



var. paucifolia Fernald. — (P. chlorantha Man. ed. 7 in part.) 



Leaves mostly cuneate at base and truncate or sub-truncate at 

 summit; somewhat flabelliform-obovate, few (1 to 7 or even wanting) 

 in a rosette {vid. Rhodora, 22: 51, 1920). 



Great Barrington. 



P. elliptica Nutt. Woods; common. 



P. rotundifolia L., var. americana (Sweet) Fernald. Round- 

 leaved Shin Leaf. — (P. aviericana Man. ed. 7 and 111. Fl. ed. 2; vid. 

 Rhodora, 22: 122, 1920.) 



Dry open woods; common in the valley, occasional on the plateau. 

 Altitude 2000 feet, Florida. 



P. secunda L. — W'oods; common. 



var. obtusata Turcz. — Cold bogs, in sphagnum; rare. Stock- 

 bridge; Sandisfield. 



RHODODENDRON. 

 {Azalea 111. Fl. ed. 2 in part.) 



R. canescens (Michx.) G. Don. Pink Azalea. — \A. canescens 

 111. Fl. ed. 2.) 



Woods, upland pastures and swamps; common. 



R. maximum L. Great Laurel; Rose Bay. — Swamps. 

 Williamstown (Oakes); Washington (altitude 1750 feet) ; Richmond. 



The Richmond station has been destroyed by gardeners from the 

 Lenox estates who have dug up the plants. Nothing is known of the 

 Williamstown station excepting a sheet in the herbarium of the Boston 

 Soc. Nat. Hist, labelled " Williamstown, Oakes." 



R. nudiflorum. (L.) Torr. Pink Azalea. — {A. nudiflora 111. Fl. 

 ed. 2.) 



Swamp, Sheffield; Mt. Washington (Churchill). 



VACCINIUM. Blueberry; Cranberry. 



V. atrococcum (Gray) Heller, Black High Blueberry. — 

 Swamps and upland pastures; frequent, especially on the plateau. 



