268 
(2) Salix discolor Muhl. Entomophilous, but probably de- 
scended from anemophilous ancestors. Dioecious, blooming in 
early spring before the appearance of the leaves, when the bright 
yellow anthers render the staminate plants very conspicuous, odor 
marked and agreeable, honey and pollen abundant. A staminate 
ament about 1’ long contained 270 flowers. The pollen is not 
easily dislodged when a branch is shaken, and it is often retained 
by the silky hairs with which the ament is clothed after it has fal- 
len from the anthers. 
In a pistillate ament 1’ 1/ long there were 142 pistils, stigmas 
two, bilobed, nearly sessile, honey-yellow, papillose; the honey is 
Secreted on the tip of a small flat gland at the base of the ovary 
on the inner side. 
Owing to the pollen, of which there is a large store, the stami- 
hate aments attract a more numerous company of insects than the 
Pistillate. Both bees and diptera are very common. Numerous 
black ants climb the stems and steal the honey, I have alao seen 
them Struggling over and carrying off living Rhamphomyia. 
According to H. Muller (Fertilization, p. 524) many species of 
Andrena visit the willows almost exclusively in search of food for 
their young, 
Visitors: A. Hymenoptera—{1) Apis mellifica 3 , (2) Andrena 
SP. (3) Halkictus parallelus’s, (4) Nomada bisignata; B. Diptera— 
(5) Myops vicaria, (6) Pristiphora tdiota, (7) Borlorus sp. (8) Goma 
Jrontosa, (9) Lucillia cornicina, (10) Homalomyia scalaris, (11), (12) 
(13) Rhamphomyia three species ; C. Coleoptera—{ 14) Cyphon ob- 
scurus, (15) Dorytomus sp. D. Hemiptera, one species. (Taken 
on aments of both kinds, April 20-24, Waldoboro, Me.) 
Norr.—In the identification of insects I am indebted to Dr 
Henry Skinner, of Philadelphia. Joun H. Lovett. 
WALDOBORO, MAINE. 
