78 Rhodora [APRIL 
H. ciliaris (L.) R. Br. Bogs and meadows. Dedham (E. & C. E. 
Faxon, Aug. 9, 1888; E. H. Hitchings, Aug., 1889; G. С. Kennedy, 
Aug. 5, 1894); Lexington (W. Boott, 1862); Sharon (E. H. Hitchings, 
July, 1871). 
Н. clavellata (Michx.) Spreng. Wet woods and swamps, occa- 
sional throughout. 
H. fimbriata (Ait.) R. Br. Wet woods and grassy swamps, occa- 
sional. | 
Н. flava (L.) Gray. Wet fields and woods, generally rare, but 
locally abundant. 
Н. Hookeri Torr. Dry or rich woods. Big Hill, Acton (J. R. 
Churchill & W. Deane, June 27, 1885); Georgetown (Mrs. C. N. S. 
Horner, no date); Middleton (J. H. Sears, no date); Bear Hill, 
Stoneham (Mrs. P. D. Richards, June 17, 1881); Hopkinton (C. W. 
Swan, according to Dame & Collins, Fl. Middlesex Co. 103. 1888); 
Blue Hill (according to Deane, Fl. Metrop. Park Comm. 79. 1896); 
West Boxford and Groveland (according to Baldwin, Orchids of N. E. 
137. 1884). 
H. lacera (Michx.) К. Br. Wet fields, meadows, and bogs, common. 
H. orbiculata (Pursh) Torr. Rich woods northward, rare. 
Н. psycodes (L.) Sw. Wet meadows and swamps, common but not 
abundant. 
LIPARIS. 
L. liliifolia (L.) Richard. Wet woods, rare. 
L. Loeselii (L.) Richard. Wet fields, rare. 
LISTERA. 
L. cordata (L.) R. Br. Deep mossy woods and bogs. — *'Not rare, 
Magnolia, Gloucester” (C. J. Sprague & J. H. Sears, 1880 and 1884); 
Purgatory Swamp, Norwood (А. W. Cheever, June 4, 1903); Great 
Swamp, Walpole (J. R. Churchill, May 30, 1887); West Boxford and 
Hamilton (according to Baldwin, Orchids of N. E. 140. 1884). 
MICROSTYLIS. 
M. unifolia (Michx.) B S P. Wet fields, bogs, and open woods, 
very rare. It has been found at various stations scattered over the 
area. 
