Glossary of Special Terms 



863 



Samara. A simple indehiscent winged fruii. 



Scabrous. Rough. 



Scale. A minute, rudimentary or vestigial leaf. 



Scarioiis. Thin, drj', and translucent, not 

 green. 



Scorpioid. Coiled up in the bud, or in the be- 

 ginning of growth, unrolling in expanding. 



Secund. Borne along one side of an axis. 



Segment. A division of a leaf or fruit. 



Sepal. One of the leaves of a calyx. 



Septate. Provided with partitions. 



Septicidal. A capsule which splits longitudi- 

 nally into and through its dissepiments. 



Serrate. With teeth projecting forward. 



Serrulate. Diminutive of serrate; serrate with 

 small teeth. 



Sessile. Without a stalk. 



Sinuate. With strongly wavy margins. 



Sinuous. In form like the path of a snake. 



Sinus. The space between the lobes of a leaf. 



Spathe. A bract, usually more or less concave, 

 subtending a spadix. 



Spatulate. Shaped like a spatula; spoon- 

 shaped. 



Spicule. Arranged in a spike; like a spike. 



Spike. An elongated flower-cluster or cluster 

 of sporanges, with sessile or nearly sessile 

 flowers or sporanges. 



Spinose. With spines, or similar to spines. 



Spinule. A small sharp projection. 



Spinulose. With small sharp processes or 

 spines. 



Spreading. Diverging nearly at right angles; 

 nearly prostrate. 



Spur. A hollow projection from a floral organ. 



Squarrose. With spreading or projecting parts. 



Stamen. The organ of a flower which bears 

 the microspores (pollen-grains). 



Staminode. A sterile stamen, or other organ 

 in the position of a stamen. 



Standard. The upper, usually broad, petal of 

 a papilionaceous corolla. 



Stellate. Star-like. 



Sterigmata. The projections from twigs, bear- 

 ing the leaves, in some genera of Pinace^e. 



Sterile. Without spores, or without seed. 



Stigma. The summit or side of the pistil to 

 which pollen-grains become attached. 



Stipules. Appendages to the base of a petiole, 

 often adnate to it. 



Stipulate. With stipules. 



Stolon. A basal branch rooting at the nodes 

 Stoloniferous . Producing or bearing stolons. 

 Stoma (Stomata). The transpiring orifices in 



the epidermis of plants. 

 Strict. Straight and erect. 

 Strigose. With appressed or ascending stiS 



hairs. 

 Style. The narrow top of the ovary. 

 Subulate. Awl-shaped. 

 Succulent. Soft and juicy. 

 Sulcate. Grooved longitudinally. 

 Superior. Applied to the ovary when free 



from the calyx; or to a calyx adnate to an 



ovary. 

 Suture. A line of splitting or opening. 

 Symmetrical. Applied to a flower with its 



parts of equal numbers. 

 Syncarp. A fleshy multiple or aggregate fruit. 



Terete. Circular in cross-section. 



Ternate. Divided into three segments, or 



arranged in threes. 

 Thyrsoid. Like a thyrsus. 

 Thyrsus. A compact panicle. 

 Tomentose. Covered with tomentum. 

 Tomentulose. Diminutive of tomentose. 

 Tomentum. Dense matted wool-like hairs. 

 Tortuous. Twisted or bent. 

 Trimorphous. Flowers with stamens of three 



different lengths or kinds; in three forms. 

 Truncate. Terminated by a nearly straight 



edge or surface. 

 Tiiberculate. With rounded projections. 

 Turbinate. Top-shaped. 



Umbel. A determinate, usually convex flower- 

 cluster, with all the pedicels arising from the 

 same point. 



Umbellate. Borne in umbels; resembling an 

 umbel. 



Uncinate. Hooked, or in form like a hook. 



Undulate. With wavy margins. 



Urceolate. Urn-shaped. 



Valvate. Meeting by the margins in the bud, 

 not overlapping; dehiscent by valves. 



Vascular. Relating to ducts or vessels. 



Vein. One of the branches of the woody por- 

 tion of leaves or other organs. 



Veinlet. A branch of a vein. 



Venation. The arrangement of veins. 



