314 THE ORCHID REVIEW. [OcTOBER, 1907. 
SOME OTHER NoRTH AMERICAN ORCHIDS. — 
This photograph was accompanied by some interesting notes, which we 
here summarise. They were received some time ago, and relate to the 
summer of Igot. 
Having been engaged upon some field work here in the low mountains. 
of Northern Tennessee, writes Mr. Le Moyne, I have kept a good watch for 
native Orchids. The work began after the middle of July, and conse- 
quently those species that bloom in the spring and early summer were not 
met with in flower, though six of these were found and identified by their 
growth. | 
Of the later blooming kinds two Habenarias were found in some ; 
abundance towards the end of August, generally growing in the open space 
along the sides of the railroad, where their bright colours were conspicuous. 
among the many other flowers. They were, H. cristata, with its crowded 
heads of orange-coloured blooms, and H. ciliaris, with heads of larger rather 
paler flowers, but much prettier, by reason of their longer very deeply 
fringed lip. Both were growing in clear open spaces, generally without 
shade other than that given by the grass or other low plants growing with 
them. The soil is a good open loam, which is wet for a good part of the 
year. : 
Early in September Pogonia pulchella was found growing in shady 5 
woods, the flowers being sometimes white, sometimes pale pink, always very 
pretty and delicate. The finest specimen found was eight or ten inches. 
high, and bore two large seed pods. In one or two localities it was found in 
considerable numbers, growing in the light leaf-mould which lies in 4 
thin layer over the clayey loam. 2 
At the same time two plants of Tipularia discolor was found growing 
in the same kind of soil, but in even deeper shade. It is very graceful and 
delicate, as may be seen by the photograph, though the colour is not at 
all bright. Two of the flowers had been fertilised, and I have since 
gathered two good seed pods from the plant. 
Early in September Spiranthes simplex was found, and a few days lates - 
S. gracilis. They are much alike, both growing in open grassy plains in 
rather sandy loam, but have not hitherto been found intermixed. | 
They are easily distinguished, the flower of S. simplex being Pure. — 
white, while those of S. gracilis have a decidedly green throat, and the: 
roots are markedly different, the first having a single tuber, the other thick | 
forked roots in a fascicle. P| 
About the end of the month Corallorhiza odontorhiza was found. i 
grows abundantly over the mountains here in shady places, and in the light : 
leaf-mould. A few days ago a colony of what seemed to be some hundreds: 
Sia: 
