252 Rhodora IDecember 



TIARELLA. 



T. cordifolia L. Rich woods, rare; Salisbury, Amesbury, New- 

 buryport, Danvers, Norwood; Groton (C. W. Jenks) according to 

 Dame & Collins, Fl. Middlesex Co. 35, 1888; '"Rare in Lynn, Dr. 

 Holder legit ' (Tracy) ", according to Robinson, Fl. Essex Co. 52, 1880. 



HAMAMELIDACEAE. 

 HAMAMELIS. 



H. virginiana L. Swamps and moist open woods; frequent 

 throughout. 



PLATANACEAE. 



PLATAN US. 



P. occidentalis L. Moist soil, especially by streams; occasional 

 throughout, native in some places, transplanted to others. 



C. H. Knowlton I Committee on 

 Walter Dkane ( Local Flora. 



ANOMALOUS FLOWERS OF POGONIA VERTICILLATA. 



Frank Walters. 



On June 1st, 1916, I went to Mt. Washington, Berkshire County, 

 Massachusetts, and visited a colony of Pogonia vrrtirillata which I 

 located there the preceding summer. I wanted to see if any of the 

 plants were in flower, as 1 could find no evidence last year that any 

 had flowered that season. A fair proportion of the plants were in 

 flower. I found one plant 2-flowered, with flowers on separate pe- 

 duncles, and a remarkable series of six plants each with two flowers 

 on one thickened peduncle. As the plants vary somewhat 1 will 

 .describe them. 



