210 BOTANICAL GAZETTE. [ September, 
long. However, corpuscula are found more frequently on 
the pulvilli and on the hairs near the claws than on the 
claws. Even when small and short-legged insects succeed 
in extracting pollinia and inserting them into the stigmatic 
cula, and often lose their lives in consequence. Hive-bees 
are frequently killed when most of their feet are entangled. 
On June 24 I picked thirty dead hive-bees from the flowers.’ 
I have also found five species of flies and four species of 
moths killed on the flowers. 
The hoods, although hardly longer than the anthers, are 
comparatively broad and deep, favoring long-tongued bees, 
which are the most abundant visitors. 
As butterflies have been found on the preceding plants, 
they would be expected to occur on A. Cornuti. H. Miller 
ives a list of thirty-one species of insects observed on the 
owers in Europe.’ No butterflies are mentioned, but three 
species of Lepidoptera of other families, on which pollinia 
were not found. In Illinois I caught seventeen species OP 
_ the flowers, six of these showing pollinia. 
Notes were made on twenty-two days, between June 21 
and July 22, 
= F a F £ 
Bye ap Ggebown gers 
2 8 se} 3 3 E 
= Steel 2 | 3 
& 5 a ceed So 
With pollintei008- me erry ¢ | 1 bd 
Without pollinia ............... Pare 11 5 | 46 1 “i 
| lor 
ee Te eee” | | 
mtu |e. is | 6 | ..e 
a be 
ase The few small insects which occur on 
arely get their claws caught, and,when they do, rarely escape 
LOPS WRIST weeremea rec nt en ee ee ee 
1 
not Pin Denwett found dead hive-bees on some Asclepias, probably Cornuti, put doe> 
Sherine oa See Amer. Naturalist, iii, 358. : 1» 996, 008 
ee Wellies Beobachtungen 1 a1. 899, 400; also, ‘‘ Befruchtung der Blumen, ' 
See Boranican Gazerre, xi, plate viii. 
