278 AMERICAN VINES. 



STAMENS The male organs of flowering plants, standing in a circle 

 within the petals. They usually consist of a filament and an 

 anther, being the essential part in which the pollen or fecundat- 

 ing dust is formed. 



STERILE Incapable of reproduction; not able to germinate or bear 

 fruit, as a sterile flower, which bears only stamens. 



STIGMA The apical portion of the pistil in flowering plants. 



STOCK, grafting Part which bears the scion in plants. 



STRATA, sing, stratum (Geol.) Beds of earth or rock of one kind 

 formed by natural causes, and consisting usually of a series of 

 layers. 



STRIATED Marked with striae, or fine grooves or lines; showing narrow 

 structural bands of lines. 



STYLE (,Bot.) The middle portion of the perfect pistil, which rises 

 like a column from the ovary and supports the stigma at its 

 summit. 



SUBEROUS TISSUE (suberous or suberose) Having a corky texture. 



SUB-MEDIUM Under the average. 



SUB-ORBICULAR Having an elliptic outline. 



SUB-RIBS Secondary ramifications of the ribs of a leaf. 



SUB-VEINS Same meaning as sub-ribs. 



SULPHATE OF COPPER Compound of sulphuric acid and copper, com- 

 monly called bluestone. 



SULPHATE OF IRON Compound of sulphuric acid and iron, commonly 

 called green vitriol. 



TENDRIL (Bot.) A slender leafless portion of a plant, by which it 

 becomes attached to a supporting body, after which the tendril 

 usually contracts by coiling spirally. The tendrils of a vine are 

 metamorphosed grapes. 



TERNARY HYBRID Hybrid resulting from the crossing of three 

 c<pages. 



TERTIARY The latest geological epoch, immediately preceding the 

 establishment of the present order of things. 



TOMENTOSE (Bot ) Covered with matty woolly hairs. 



TOMENTUM (Bot.) The closely matted hair or downy nap covering 

 the leaves or stems of some plants. 



TOOTH Angular or rounded prominence on the margin or edge of a 

 leaf. 



TRILOBATE Having three lobes. 



TUBEROSITIES Knob-like prominences developing on vine roots 

 attacked by phylloxera. 



TUFA See quaternary tufa. 



UNDULATING LEAF Rising and falling like waves. 



VARIATION A varied form of a variety. 



VARIETY Differs from a species in that when propagated by seed it 

 will revert to another form. See species. 



