Ornithophilous Pollination. 683 
. Enlarged ventral view of lower mandible showing 
pollen repository groove. 
Head of T. colubris showing a, side repository, 5, 
repository under the lower mandible. 
Single flower of Trumpet Honeysuckle. 
Two vanes side by side, from main part of a feather 
of T. colubris, showing oneof the ways of carrying 
pollen-grains. 
Two vanes side by side of the same feather from the 
base, showing another way of carrying pollen-grains. 
One-half of a vane showing thistle-like structure at 
end of a feather, also showing another method of 
carrying the pollen-grains between two barbs. Pol- 
len adheres to these feathers by aid of the sticky 
secretion of plants. 
