404 
LXXXV. SALICACEiE. 
[ Salix. 
S. repens L. : E. B. t. 183 (with young leaves only). — 7 . stem 
prostrate with elongated straight branches, leaves elliptic-oblong 
with a curved point. S. prostrata Sm. : E. B. t. 1959. — d. stem 
recumbent, leaves elliptical. S. fcetida Sm. E. FI. vol. iv. p. 
208. S. ascendens Sm. : E. B. t. 19G2. subvar. leaves smaller. 
S. fcetida /3. Sm. E. FI. vol. iv. p. 208. S. parvifolia 
Sm.: E. B. t. 1961. : Salict. Wob. p. 161. t. 81. — e. stem pro- 
cumbent or erect, leaves elliptic-lanceolate with a recurved 
point. S. incubacea L. : E. B. S. t. 2600 (soon glabrous 
above). — subvar. leaves long, covered with dense gray pube- 
scence above, and sometimes narrow. — £. stem erect or spread- 
ing leaves elliptical, with a recurved point very silvery beneath 
usually long, covered with gray pubescence above. S. argentea 
Sm. : E. B. t. 1364. 
Moist and dry heaths, moors, and sandy situations. h • 4, 5. — 
Usually a small shrub, with rather long straight branches, hut varying 
exceedingly, according to situation and other circumstances; as do the 
leaves, which are more or less glabrous above in the first four varieties, 
while in the last two they are often* downy above for a much longer 
period, and do not acquire by drying the dark colour of the others : 
all are more or less silky beneath where the nerves are prominent, and 
prominently reticulate above. 
18. S. ambigua Ehrh. (ambiguous TU. ); “leaves oval obovate 
or lanceolate pubescent slightly toothed with a recurved point 
somewhat rugose above glaucous with prominent veins beneath, 
catkins stalked erect cylindrical, ovaries stalked densely silky, 
style very short, stigmas short at length cloven.” Borr. in E. 
B. S. t. 2733. — a. leaves oval or obovate moderately hairy. S. 
ambigua Ehrh. (not of Pursh). S. versifolia Ser. — /3. leaves 
obovate .very silky on both sides. — 7 . leaves obovate lanceolate 
or oblong moderately hairy or silky. S. spathulata Willd. 
a. Gravelly heaths. Sussex, Essex, Suffolk. Perthshire, Aber- 
deen, Inverness, Angus, Caithness, Orkney, and the Hebrides. — /3. 
Hogs near Forfar. — 7 . Epping Forest; Hopton, Suffolk. Between 
Balnagard and Aberfeldie, Scotland. h- 5 — A straggling shrub, 
with branches sometimes procumbent, sometimes rising a foot or two 
from the ground ; at other times it is of an upright growth, 3 — 4 feet 
high. Young twiys downy. Leaves thin, somewhat rugose, with 
veins sunken above and prominent beneath ; upper side variable as to 
pubescence and silkiness; under sometimes quite bare and glaucous, 
but usually with copious adpressed silky or cottony hairs ; edges 
more or less recurved. “ S. ambigua approaches on the one side to S. 
aurita, with the smallest varieties of which it is most likely to be con- 
founded, and on the other to S. fusca.’’ (Borr.) Koch regards it as a 
hybrid between the two. They are altogether extremely ambiguous 
plants. The var. /3. has a very peculiar aspect: we have never seen 
any specimens, except those from Mr. Drummond, and what we our- 
selves collected in Ilestennet Moss near Forfar. 
