248 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



Woods; common. Very variable in height and size of flowers, 

 perhaps including more than one species. 



H. lacera (Michx.) R. Br. Ragged Fringed Orchis. — (Blephari- 

 glottis lacera 111. Fl. ed. 2.) 



Wet meadows; frequent. On Greylock in elekrings over 3000 feet 

 (Andrews). 



H. macrophylla Goldie. — Rich woods. Savoy; Lanesboro 

 (Churchill); Dalton (Lincoln); Sandisfield. 



H. obtusata (Pursh) Richards. — (Lysiella obtusata 111. Fl. ed. 2.) 



Bog, Hinsdale (H. L. Moody). 



H. orbiculata (Pursh) Torr. Large Round-leaved Orchis. — 

 {Lysias orbiculata 111. Fl. ed. 2.) 



Rich woods; frequent. 



H. psycodes (L.) Sw. Smaller Purple Fringed Orchis. — 

 {Blephariglottis psycodes 111. Fl. ed. 2.) 



Swamps and wet meadows; common. Altitude 2000 feet, Hancock. 

 A form with pale sepals from Becket. A spike from Sheffield with 144 

 flowers. 

 ' forma albiflora, f. nov. — Corollis albis. Flowers white. 



Type in N. E. B. C. herbarium, collected in Stockbridge, August 12, 

 1914 (R. Hoffmann). 



LIPARIS. TWAYBLADB. 



L. liliifolia (L.) Richard. — Rich woods in the western part of the 

 valley; occasional. Williamstown, lower wooded slope of Greylock 

 (Andrews); Stockbridge (Miss Helen Kobbe); West Stockbridge; 

 Alford; Mt. Washington (Walters). 



L. loeselii (L.) Richard. — Bogs and wet roadsides; frequent. 



MICROSTYLIS. Adder's Mouth. 

 (Malaxis III. Fl. ed. 2.) 



M. monophyllos (L.) Lindl. — Cold bogs; occasional. Williams- 

 town, upper wet slopes of Greylock, also in one dry grass-covered 

 meadow (Andrews); North Adams (White); Pittsfield; Stockbridge. 



M. unifolia (Michx.) BSP. — Bogs, wet woods, or dry slopes and 

 ledges; frequent. 



