118 Rhodora [JULY 
were very probably due to crossing. Many bees were at work on the 
flowers and appeared to visit both forms indiscriminately.' 
The colors developed in these variants occur normally in other 
species of the genus. I. racemosa DC., I. Dalzellii H. f. & T., I. repens 
Moore, etc. are yellow; I. porrecta Wall., I. laevigata Wall., I. longipes 
H. f. & T. and others are cream-color; J. capensis Thunb., I. modesta 
Wight, and J. diversifolia Wall., pink. We have here, as in Gratiola 
aurea, a series of variants correlated with ancestral tendencies in the 
genus, and perhaps arising from the loss of elements present in the 
typical form. z 
Water-color drawings of formae albiflora and citrina have been 
kindly made for me by Miss Una L. Foster and are deposited in the 
Gray Herbarium. It is hoped to complete the series of drawings as 
opportunity offers to get fresh material. 
East HARTFORD, CONNECTICUT. 
1 Both honey-bees and a small species of humble-bee visited the flowers. The honey-bees 
invariably plunged into them in the fashion needed for effecting pollination, pushing their way 
into the sac until only their “business ends” were visible. The humble-bees, on the other hand, 
alighted in the same position as the honey-bees, but instantly and with entire unanimity, 
turned over, hung upside down beneath the flower and tried to pierce the spur and extract the 
nectar from the outside. So far as I could judge, the swaying of the flower and the elasticity 
of the spur, frequently defeated this attempt. Some insect rifles the nectaries of Habenaria 
blephariglottis after the same fashion and with better success. In some dozens of spikes of 
this species which I examined last summer, nearly all the spurs were punctured, but I could not 
catch the burglar at work. 
