THE WILLOWS OF OHIO. 309 
be distinguished by its sharp fine serration contrasted with the 
distant blunt and often coarse teeth of the pussy willow. The 
habits of the two are sufficientiy different to put aside all confu- 
sion when the plants are seen together. From S. sericea it can 
generally be distinguished by the absence of the silvery white 
pubescence on the under surface. The shape of the leaves is also 
different, in most cases in that species the leaf is widest near the 
middle; in this it is widest below the middle. Salix cordata also 
lacks the peculiar leaf habit of Salix sericea. The flowers come 
very early from small pussies. As they mature the carpellate 
aments come to be supported by large leaves and much of the 
wool of the pussy drops off from the fruiting rachis. The anthers 
just before the elongation of the filaments are almost as red as 
those of Salix sericea. The capsules are green and glabrous, 
the stigmas frequently red. 
Salix cordata angustata Anders. includes the narrow leaved 
forms of the species. In Ohio most plants have leaves wider 
than those of the typical angustata but decidedly narrower than 
the typical specific form. It is therefore difficult to distinguish 
two forms in our area and since the leaf variation may be con- 
sidered as accidental and without significance it is perhaps hardly 
advisable to separate them. 
Salix cordata is abundant all over the state. Its usual 
habitat is along streams while the other species with a similar 
habit and leaf are typically swamp plants. This is not to say 
that the present species never grows in swamps nor that S. sericea 
and S. discolor never grow along river banks—for they do—but 
that they attain their best development in the habitats given 
and are usually found there. 
To increase the difficulty of dealing with Salix cordata it 
hybridises very freely. It forms with S. candida a fine series of 
connecting forms., With S. sericea hybrids occur though not so 
frequently as has been supposed. It is also said to mix with S. 
discolor but I have seen no unquestioned specimens from Ohio. 
SALIX ADENOPHYLLA Hooker. Furry WILLOW. 
A straggling shrub of about the same size as S. cordata 
which it resembles most closely. It looks like a xerophytic 
adaptation of that species. The leaves are thicker, shorter and 
broader, ovate, more or less tomentose on both sides, with an 
emarginate base, very sharply serrate or entire; ordinarily in 
rank growth with the leaves closely crowded on the twigs and 
Plate XIV. Salix adenophylla. 
__ Typical leaves, flowers and fruit, showing fruiting aments with and 
without bracts; a bract from a fruiting ament in the upper corner; natural 
size; capsule enlarged three times. 
