ORGANOTOPIC PRANTS. 
91 
leaf-mold or humus is abundant; others are oftener 
found in the open, as in bogs and peaty meadows. Of the 
first genus named we have C. pulchellus (Ihmodorum 
tuberosum), one of the most beautiful of our orchids, some¬ 
times called the grass pink. As the common name indi¬ 
cates, it simulates a grass, after a fashion, sending up from 
a round, solid bulb a scape with a single grass-like leaf. 
The handsome purple flowers are in a loose terminal spike, 
and the lip, instead of being, as in most orchids, turned 
downward by the twisting of the ovary, retains its original 
upright position. 
Of the Pogonias, a most interesting genus, we are so for¬ 
tunate as to possess three species. One of them, P. ophi- 
oglossoides, or adder-tongue Pogonia, is abundant in cer¬ 
tain localities. The flowers are pinkish in hue and very 
delicately scented. Another, P. verticellata, whorled Po¬ 
gonia, is found in at least three places in or near Manches¬ 
ter. It is one of the rarer species, and receives its common 
name from the fact that the leaves grow in a whorl of five 
at the summit of the stem. The flowers are inconspicuous, 
but very striking when closely examined, the three sepals 
being thread-like in form, sometimes two inches long, and 
dark purple in hue. Of the third species, P. pendula (tri- 
anthophora), I know of but one station, which I discov¬ 
ered several years since on the shore of Take Winnipesau- 
kee. It is the same locality where I found the root para¬ 
sites named in my last article. [See October number of 
Nature Study], 
Of the third genus, Habenaria, we have several species, 
including the well-known purple-fringed orchids, H. fim- 
briata (grandiflora) and psychodes. 
How many of the above-named orchids are partially 
saprophytic, and in what degree they are so, cannot at 
present be told. The field for study is a new one. Many 
observations, collections, comparisons and microscopical 
