FAMILY II, OPH IOQLOSSACE/E Lind 
P LANTS near allies of the ferns, but consisting of a, stem with 
a single leaf In Opliioglossum the leaf or sterile segment is 
entire, the veins are reticulated, and the sporangia in a 
simple spike. In Botrychium the sterile segment is more or less 
incised, the veins free, and the fructification in a panicle, or com- 
pound, or rarely simple spike. 
QPHIOGLOSSUM L. 
V 
173. O. vulgatum L. Adders Tongue Stem simple, 2-11 
inches high, bearing one smooth, entire leaf and a terminal spike. 
Usually in meadows in moist, not boggy, places, scattered among 
the grass, etc. Overlooked rather than rare 
“A nearly constant companion plant in eastern Massachusetts 
is Habenaria lacera .” — A A. Eaton. This orchid is quite conspic- 
uous when in bloom, and O. vulgatum may be expected in its vicin- 
ity. Througnout the New England states, and nearly cosmopoli- 
tan. Middle of July. 
Illustrated in Gray’s Manual, and by Knobel. 
BOTRYCHIUM Swartz, Grape Fern. 
• 
177. B. simplex E. Hitchcock. Frond 1-3 inches high, rare- 
ly higher ; sterile segment near the middle, entire or with few 
lobes ; fertile segment simple, or once or twice pinnate ; apex of 
both segments erect in the bud. Dry fields. “Abundantly scat- 
tered over Vermont, its habitat usually poor soil, especially knolls 
