November, 1921.] THE ORCHID REVIEW. 
NATURAL HYBRID ORCHIDS FROM ARRAN. 
By Rev. T. Stephenson, D.D., and Mr. T. A. Stephenson, M.Sc. 
C WO photographs are here reproduced of hybrids found this summer in 
Arran. (i). Gymnad.enia conopsea X Orchis maculata, s.s. 
ericetorum. The photograph shows a reduced figure of the flower- 
head. The whole plant was 
about 2.5 dm. high, with 
long narrow, rather fleshy, 
unspotted leaves. The 
flowers were pale lilac, of 
one tint all over, spur long, 
lip rounded, with centre-lobe 
rounded and slightly pro¬ 
minent. Each lip had about 
half-a-dozen tiny spots, in 
two lines, which have not 
come out in the photograph. 
The flower was slightly 
scented. It is the most 
beautiful plant of this type 
we had ever seen, and the 
largest. In a note in the 
Orchid Review, 1919, p. 170, 
the late Mr. R. A. Rolfe 
noted some records of this 
type, under the name Orchi- 
gymnadenia Heinzeliana, 
Camus. This evidently in¬ 
cludes hybrids of Gym- 
nadenia conopsea with aggre¬ 
gate maculata; but seeing 
that individuals of these. I# gymnadenia conopsea x orchis ericetorum 
plants are fairly numerous (Photo k w. Tatumu. jm. n.b ) 
it is desirable to distinguish 
hybrids of O. ericetorum from those of O. Fuchsii, Druce. As it happens- 
both forms were growing in the swampy field, where the specimen 
described was found, and the points that lead us to refer it to O 
ericetorum are the very small area of the centre lobe, and the minute, 
spots on the lips. In all undoubted hybrids of O. Fuchsii, of which 
we have seen a good many, the centre-lobe is far more prominent, and 
