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GLOSSARY. 



Septifragal. Breaking away from the partitions 

 on dehiscenee ; terms applied to the valves of 

 a loculicidal capsule. 



Septum. Any kind of partition dividing a cavity. 



Scriceom. Silky ; covered with soft straight ap- 

 pressed hairs. 



Scries. A row, circle, or rank. 



Serotinous. Produced la.te in the season. 



Serrate. Having teeth directed forward, like 

 the. teeth of a saw. 



Serratures. Teeth like those of a saw. 



Serrulate. Finely serrate. 



Sessile. Attached immediately to the point of 

 support without footstalk. 



Seta. A bristle. 



Setaceous. Bristle-like. 



Setigerous. Bristle-bearing. 



Setose. Beset with bristles. 



Sheath. A tubular envelope, investing a stem. 



Sheathing. ( Enfolding like a sheath. 



Shield-shaped. Flattened and rounded or polygo- 

 nal, and borne by a stalk attached to the 

 under surface. 



Shrub. A plant woody throughout, of less size 

 than a tree. 



Shrubby. Having the character of a shrub. 



Sigmoid. Doubly curved, like the letter S, or 

 the Greek sigma, 2. 



Silicle. A short cruciferous pod, not many 

 times longer than wide. 



Silique. The usually elongated pod in Cruciferae, 

 having two valves separating from two parietal 

 placentae. 



SUky. See Sericeous. 



Simple. Of one piece ; not compound. 



Sinistrorse. Turned to the left, as seen from 

 the outside ; but often used in the opposite 

 sense. 



Sinuate. With a strongly wavy margin. 



Sinuous. Flexuose ; curving back and forth. 



Sinus. A depression, either angular or rounded, 

 separating lobes or segments. 



Smooth. Not rough ; sometimes used as equiv- 

 alent to glabrous. 



Sorus, pi. Sori. In ferns, a cluster of sporangia. 



Spadix. A spike with usually a thickened 

 fleshy rhachis and subtended by a spathe. 



Span. The distance between the extremities of 

 the thumb and little finger when extended ; 

 about nine inches. 



Sparse. Thinly scattered. 



Spat/iaceous. Bearing or resembling a spathe. 



Spathe. One or more clasping and often sheath- 

 ing bracts inclosing a flower cluster or inflo- 

 rescence and mostly colored. 



Spatulate. Narrowly attenuate downward from 

 an abruptly rounded summit. 



Species. A group of things of the same kind, 

 having essentially the same characters. 



Specific. That which relates to or defines a 

 species. 



Spicate. In spikes or resembling a spike. 



Spike. Resembling a raceme but the flowers 

 sessile or very nearly so. 



Spikelet. A secondary spike ; in grasses, the 

 flowers subtended by a common pair of glumes. 



Spindle-shaped. See Fusiform. 



Spine. A sharp woody or rigid outgrowth from 

 the stem, a modification of a branch, leaf or 

 stipule. 



Spiuescent. Ending in a spine or rigid point. 



Spinose, Sirivy. Furnished with or resembling 

 spines. 



Spinulose. Having diminutive spines. 



Spiricles. The microscopic spiral cells within the 

 hairs upon the seeds or akenes of some plants 

 (as Collornia), which are discharged and un- 

 coil when wetted. 



Sporangium. In the higher cryptogams, the 

 case which contains the spores. 



Spores. In cryptogams, the minute bodies 

 which are the result of fructification and 

 which correspond to some extent to the seeds 

 of phsenogams, though without embryo and 

 reproducing the plant only indirectly. 



Spur. A usually slender tubular process from 

 some part of a flower, often nectariferous. 



Squamose. Furnished with scales. 



Squarrose. Roughened and jagged with projec- 

 tions spreading every way, as by the divari- 

 cately spreading ends of crowded leaves or 

 bracts. 



Squarrulose. Diminutive of the last. 



Stamen. The pollen -bearing organ of the flower, 

 consisting of an anther usually supported upon 

 a stalk or filament. 



Stamineal. Relating to or consisting of the 

 stamens. 



Staminiferous. Stamen-bearing. 



Staminodium. A sterile stamen or something 

 taking the place of a stamen. 



Standard. The broad upper petal of a papilio- 

 naceous flower. 



Stellate. Star-shaped ; radiating in fine lines 

 from a centre, like the rays of an asterisk. 



Stem. The main axis of a plant. 



Stemless. Without manifest stem above ground. 



Sterile. Barren ; not capable of producing seed ; 

 a sterile stamen is one not producing pollen. 



Stigma. That portion of the pistil without 

 epidermis through which the pollen-tubes 

 effect entrance to the ovules, very variable in 

 shape and position. 



Stigmatic. Belonging or relating to the stigma. 



Stings. Stinging hairs, seated upon a gland 

 which secretes an acrid liquid. 



Stipe. The footstalk of a pistil raising it above 

 the receptacle ; in ferns, the naked stalk of 

 the frond. 



Stipitate. Borne upon a stipe. 



Stipular. Belonging to stipules. 



Stipulate. Possessing stipules. 



Stipule. An appendage to the base of a petiole, 

 very various in form and character. 



Stock.' A caudex or rhizome ; the persistent 

 base of an herbaceous perennial. 



Stolon. A horizontal prostrate offshoot from 

 the base of a plant. 



Stoloniferous. Bearing or propagating by 

 stolons. 



Stoma, pi. Stomata. Microscopic openings or 

 "breathing- pores" in the epidermis of leaves, 

 etc., allowing interchange between the outer 

 air and that within the leaf. 



