GLOSSARY 



Stem. — Here used to designate the connecting parts between 



the stalk and the leaves and flowers. 

 Sterile. — Unproductive, as a flower without a pistil or a stamen 



without an anther. 

 Stigma. — The tip or side of a pistil through which the pollen is 



received which by means of minute tubes penetrates the 



style and conveys the minute grains to fertilize the seed- 

 sacs within the ovary. 

 Stipule. — A tiny leaflet borne at the base of a petiole. 

 Style. — The usually slender part of a pistil connecting the 



stigma and the ovary. 

 Terete. — Circular in cross-section. 

 Terminal. — Borne at the summit of the stem. 

 Tuber. — A short, thick, underground branch having eyes, like 



a potato. 

 Tufted. — Growing in clusters or clumps. 

 Umbel. — A terminal floral cluster in which the stems spring 



from the same point, like the ribs of an umbrella. 

 Utricle. — A bladder-like cover to a one-seeded fruit. 

 Veinlet. — A branch of a vein. 

 Veins. — The threadlike branching parts in the fibre or tissue 



of the leaf. 

 Venation. — The arrangement of the veins. 

 Whorl. — An arrangement of leaves in a circle around the stem. 

 Winged. — Having a thin expansion on either side of the stem, 



or of the petiole, or of a dry fruit. 



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