1887. | BOTANICAL GAZETTE. 245 
serve, as in Asclepias, to guide the legs over the slits. 
The anther wings, from the corpusculum to the angle, 
measure hardly one millimetre, and are adapted to catch fine 
hairs, not the coarser processes. : 
_ Bumble-bees insert their tongues into the closed nectaries 
With great facility. They are the most common visitors, and 
the flowers seem to be especially adapted to them. A bumble- 
bee clasps several flowers between its legs, and, as it moves 
Over the umbel, the abundant hairs on the under side of the 
thorax, abdomen and basal joints of the legs enter the slits 
and draw out the pollinia; so that the ventral surface of the 
bee fairly bristles with them. Fig. 4 is a sketch of Bombus 
Scutellaris, showing the positions of attachment of the cor- 
Puscula, The specimen from which it was drawn has more 
than one hundred pollinia, with many corpuscula which have 
lost their pollinia, and is not an uncommon case Hive-bees 
Sometimes visit the flowers. On one I found thirty-three pol- 
= Hildebrand found pollinia of A. Cornuti on tongueso/ bees. Bot. Zeit.,1866, No. = 
figure references are to plate xii, issued with the September number. 
