1G6 Wiegand: A Revision of the Genus Listera 



row sinus, lobes narrowly oblong obtuse, not ciliate ; sinus'tooth 

 prominent; a longitudinal fold along the midrib: column very 

 short and stout (i mm. long). 



Damp woods ; central and northern Europe. 



The largest of all species of Listera, and to a certain extent a 

 transition to the group with longer columns. 



Specimens examined : Scandinavia, Ahlberg ; Alps, Revcrchon ; 



France, Germany. 



6. Listera auriculata sp. nov. 



Stem slender (12-1S cm. high), glabrous below, glandular- 

 pubescent above the leaves ; bracts below the raceme absent : 

 leaves large (35-50 mm. long), elliptic-oval or elliptic-ovate, 

 acutish (rarely obtuse), inserted above the middle of the stem : 

 raceme many-flowered but not dense : rachis pubescent : bracts 

 not large, oblong-lanceolate, often obtuse, glabrous : flowers of 



medium size on stoutish glabrous pedicels which are mostl}- shorter 

 than the glabrous ovaries, and scarcely exceed the bracts : sepals 

 lance-ovate: petals oblong-linear, large (>^ length of lip), 

 longer than the ovary, spreading, mostly obtuse : lip of medium 

 size {6-% mm. long), slightly ciliate, oblong, not dilated above, 

 cleft Yi^-Yi the way down by a narrow sinus, not .contracted at 

 the base and without projecting teeth, more or less auriculate, the 

 auricles incurved-clasping, a fold between the lateral veins near the 



) 



Quebec 



]\Iaine. 



Specimens examined : Quebec, Miss Percival (Torr. Herb.). 

 Notre Dame du Lac, Quebec, Northrop, 1889 (Columb. Herb.). 

 White Mountains, N. H., Mann (Cornell Herb.). Maine, Fort 

 Kent, Furbish ; Jerusalem, Fernald ; Woodstock, Parlin. 



7. Listera borealis Morong, Bull. Torr. Bot. Club, 20 : 31. 1893. 



Plant small but not slender (7-15 cm. high), pubescent above 

 the leaves, no bracts below the raceme : leaves very small (12-25 

 mm. long), elliptic-ovate, abruptly contracted at the base, obtuse 

 at the apex and not mucronate, borne above the middle of the 

 stem but one inserted slightly above the other : raceme few- 

 flowered, open ": rachis glandular-pubescent : bracts small, oblong, 

 obtuse : flowers of medium size, on short rather stout glabrous 

 pedicels, which equal the glabrous ovaries (3.5 mm. long), but arc 

 several times the length of the bract : the lanceolate sepals and ob- 



