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glands described by Hanstein, and the droplets which occur at the 
apices of the leaves, have here again the same origin as in Kerria 
japonica. 
Syringa vulgaris. 
During the bud-stage the leafapex of Syringa vulgaris exactly 
resembles that of Kerria japonica ; the epidermal and sub-epidermal 
cells are in this case unusually large and they are filled with highly 
refractive contents. They secrete mucilage but soon degenerate. In 
consequence there is later no secretion of waterdrops. There are 
no leafteeth. 
The upper and lower surface of the young leaf, especially the 
upper surface and the margin, are covered with numerous mucilage 
secreting trichomes, which have been described and figured by 
Hanstein (l.c. p. 733) and which during the bud stage secrete con¬ 
siderable quantities of mucilage. 
If a cut branch is placed in a moist space the leaflets are soon 
covered by a layer of moisture. In the bud the young leaves are 
rolled up over one another; the intervening spaces are filled with 
water. The mucilage-glands (Keulenzotten of Hanstein) which therefore 
behave as water-glands, can be easily observed on the young leaves 
with a lense; they no longer occur on the adult leaflets. 
Forsythia viridissima. 
Forsythia viridissima in the main resembles Syringa vulgaris. 
The mucilage-glands have here a different form and do not mutually 
resemble each other. 
They are generally made up of a stalk, which some times consists 
of one and some times of two rows of three cells, and of an almost 
spherical head of gland-cells proper. 
Their number is if possible even larger than in Syringa and when 
there is secretion of water in a moist space there is not unfrequently 
formation of actual drops. 
In conclusion I wish to append a note on Fuchsia, the plant which 
has first been mentioned in the literature on this subject, but which 
nevertheless cannot be reckoned among those plants which clearly 
show the phenomenon. 
Fuchsia. 
It has already been stated, that Wilson’s observation on the water- 
secretion of cut branches of Fuchsia in a very moist space has been 
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