1020 Tabor.—-The Leaf Buds of Archytaea alternifolia . 
Summary. 
I. The leaf buds of Archytaea alternifolia , Szyszyl., have a trumpet¬ 
shaped structure, are upright and filled with water. 
II. The young leaves possess a number of marginal teeth which are 
probably hydathodes. 
III. The hydathodes are connected with vascular bundles by epithemoid 
tissue, and provision is made for the escape of water by intercellular spaces 
between the epidermal cells of the teeth. 
IV. Colleters are borne in the axils of the leaves on the leaf bases. 
They are probably concerned in the secretion of mucilage. 
V. A mucilaginous hypoderm is present towards the upper side of the 
leaf, and mucilaginous cells in the mesophyll and in the epidermis of the 
lower side. 
In conclusion I desire to record my appreciation of Prof. Groom’s 
kindness in handing me the material for investigation, and to express to 
him, and to Prof. Farmer, my thanks for much helpful advice and criticism. 
Bibliography. 
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