GLOSSARY 



285 



which would give a feeling 

 of roughness. Used in charac- 

 terizing leaf surfaces; almost 

 equivalent to glabrous. 

 Spatulate. Shaped like a spoon. 

 Used for leaves that are wide 

 and round at the apex and 

 taper gradually to the peti- 

 ole. 

 Spike. An inflorescence with a 

 long central axis upon which 

 numerous flowers are borne 

 without pedicels. 

 Spine. A sharp-pointed, rigid, 

 thornlike structure. Used in 

 this text only for modified 

 leaves and stipules. Inter- 

 mediate between prickle and 

 thorn. 

 Spinulose. Bearing small 



spines. 

 Spur. A hollow, elongated ex- 

 tension from a petal or sepal, 

 which contains nectar. Each 

 petal in a Columbine flower 

 has a spur. 

 Stamen. The pollen-producing 



organ of a flower. 

 Staminate. Stamen-bearing. 

 Used to designate flowers that 

 bear stamens, and plants that 

 bear stamen-bearing flowers. 

 Standard. The broad, top petal 

 of the flower of a plant be- 

 longing in the pea family. 

 Stellate. Star-shaped. Used in 

 this text particularly to desig- 

 nate plant hairs that have 

 broad or slender branches 

 arranged like the points of 

 a star. 

 Sterile. Not capable of pro- 

 ducing seed. Used in this 

 text for flowers that lack 

 pistils and for branches that 

 do not bear flowers. 

 Stigma. That part of a pistil, 

 usually the apex, that re- 

 ceives pollen. 

 Stipitate. Stalked. 

 Stipulate. Bearing stipules. 



Stipule. A small or large, leaf- 

 like outgrowth at the base of 

 the petiole. 

 Striate. Marked with fine par- 

 allel lines. Used in this text 

 to characterize the surfaces 

 of stems and certain seeds. 

 Strigose. Covered with stiflF, 

 straight, sharp hairs, which 

 are closely appressed. Most 

 commonly used in describing 

 branchlets. 

 Style. The part of the pistil 

 connecting the base, where 

 the ovule is situated, with 

 the stigma. 

 Sub- A prefix meaning almost, 

 nearly, or somewhat. Used in 

 this text with such terms as 

 cordate, coriaceous, conical^ 

 dentate, and glaucous, to 

 mean, a little less definitely, 

 the same as the stem word 

 would mean by itself. 

 Superior. Indicates that the 

 ovary is set above and free 

 from the base of the calyx. 

 Superposed. One above an- 

 other. Used in this text to 

 indicate that two or more 

 buds stand in a row above 

 a leaf-scar. 

 Suture. The line of union be- 

 tween parts. In this text, the 

 junction of carpels in a com- 

 pound fruit. 

 Terete. Approaching cylindri- 

 cal ; at least, circular in cross 

 section. Used to describe 

 twigs ; contrasting words are 

 angled and square. 

 Ternately. Having parts ar- 

 ranged in threes. Used in 

 this text to indicate that a 

 compound leaf is composed 

 of 3 leaflets. 

 Thorn. A large, sharp-pointed, 

 woody spine. Used in this 

 text only for spines resulting 

 from the growth of a bud. 

 Technically, such thorns are 



