Vol. I. 



GLOSSARY OF SPECIAL TERMS. 



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. 



Setaceous. Bristle-like. 



Setose. Bristly. 



Silicle. A silique much lbnger than wide. 



Silique. An elongated two-valved capsular fruit, 

 with two parietal placentae, usually dehiscent. 



Sinuate. With strongly wavy margins. 



Sinuous. In form like the path of a snake. 



Sinus. The space between the lobes of a leaf. 



Sorus (Sori). A group or cluster of sporanges. 



Spadiceous. Like or pertaining to a spadix. 



Spadix. A fleshy spike of flowers. 



Spathaceous. Resembling a spathe. 



Spathe. A bract, usually more or less concave, 

 subtending a spadix. 



Spatulate. Shaped like a spatula ; spoon-shaped. 



Spermatosoids. Cells developed in the antherid, 

 for the fertilization of the oosphere. 



Spicate. Arranged in a spike ; like a spike. 



Spike. An elongated flower cluster or cluster of 

 sporanges, with sessile or nearly sessile flow- 

 ers or sporanges. 



Spikelet. Diminutive of spike; especially ap- 

 plied to flower-clusters of grasses and sedges. 



Spinose. With spines or similar to spines. 



Spinule. A small sharp projection. 



Spinulose. With small sharp processes or spines. 



Sporange. A sac containing spores. 



Spore. An asexual vegetative cell. 



Sporocarp. Organ containing sporanges or sori. 



Sporophyte. The asexual generation of plants. 



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). 



Staminodium. 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 Pinaceae. 



Sterile. Without spores, or without seed. 



Stigma. The summit or side of the pistil to 

 which pollen-grains become attached. 



Stipe. The stalk of an organ. 



Stipitate. Provided with a stipe. 



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 stiff 

 hairs. 



Strophiole. An appendage to a seed at the hilum. 



Strophiolate. With a strophiole. 



Style. The narrowed top of the ovary. 



Stylopodium. The expanded base of a style. 



Subacute. Somewhat acute. 



Subcordate. Somewhat heart-shaped. 



Subcoriaceous. Approaching leathery in texture. 



Subfalcate. Somewhat scythe-shaped. 



Subligneous. Somewhat woody in texture. 



Subterete. Nearly terete. 



Subulate. Awl-shaped. 



Subversatile. Partly or imperfectly versatile. 



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. 



Tendril. A slender coiling organ. 



Terete. Circular in cross section. 



Ternate. Divided into three segments, or ar- 

 ranged in threes. 



Tetradynamous. With four long stamens and 

 two shorter ones. 



Thallus. A usually flat vegetative organ with- 

 out differentiation into stem and leaves. 



Thyrsoid. Like a thyrsus. 



Thyrsus. A compact panicle. 



Tomentose. Covered with tomentum. 



Tomentulose. Diminutive of tomentose. 



Tomentum. Dense matted wool-like hairs. 



Torsion. Twisting of an organ. 



Tortuous. Twisted or bent. 



Tracheae. The canals or ducts in woody tissue. 



Tracheids. Wood-cells. 



Triandrous. With three stamens. 



Tricarpous. Composed of three carpels. 



Trimorphous. Flowers with stamens of three 

 different lengths or kinds; in three forms. 



Triquetrous. Three-sided, the sides channeled. 



Truncate. Terminated by a nearly straight 

 edge or surface. 



Tuber. A thick short underground branch or 

 part of a branch. 



Tubercle. The persistent base of the style in 

 some Cyperaceae ; a small tuber. 



Tuberculate. With rounded projections. 



Turbinate. Top-shaped. 



Uliginous. Inhabiting mud. 



Umbel. A determinate, usually convex flower- 

 cluster, with all the pedicels arising from the 

 same point. 



Umbellate. Borne in umbels; resembling an 

 umbel. 



Umbellet. A secondary umbel. 



Umbelloid. Similar to an umbel. 



Uncinate. Hooked, or in form like a hook. 



Undulate. With wavy margins. 



Urceolate. Urn-shaped. 



Utricle. A bladder-like organ; a one-seeded 

 fruit with a loose pericarp. 



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. 



Velum. A fold of the inner side of the leaf- 

 base in Isoetes. 



Velutinous. Velvety ; with dense fine pubes- 

 cence. 



Venation. The arrangement of veins. 



Vernation. The arrangement of leaves in the 

 bud. 



Versatile. An anther attached at or near its 

 middle to the filament. 



Verticillate. With three or more leaves or 

 branches at a node ; whorled. 



Vestigial. In the nature of a vestige or rem- 

 nant. 



Villous. With long soft hairs, not matted 

 together. 



Whorl. A group of three similar organs or 

 more, radiating from a node. Verticil. 



Whorled. See Verticillate. 



Winged. With a thin expansion or expansions. 



