10 GLOSSARY. 



Sernnenf. division of a leaf or perianth. reachin<!; nearly or 



quite to the midrib or base, but not separable from the 



axis, as leaflets are, without tearing. 

 Sepal, one of the divisions of the calyx. 

 Sessile, without any stalk. 

 Simple, leaf not divided into leaflets, although a simple 



leaf may be entire, toothed or lobed ; (of other organs) 



not lobed, divided or compound. 

 Sinuate, leaf whose edge consists of shallow, irregular lobes 



or teeth, with rounded spaces, called sinuses, between 



them. 

 Spathe, (1) a large bract enclosing the flower-spike (spadix) 



of Araceo'; (2) tAvo or more bracts enclosing the flowers 



of Iriilacea'. 

 Species, a division of the genus, each species possessing 



characters which distinguish it from other species of 



the same genus, and bearing two names, the first the 



generic name, the second the specific one. 

 Spike, an undivided axis or peduncle bearing sessile flowers. 

 SjyikeJet, a small spike of the grass family, bearing one or 



several flowers. 

 Spine (thorn), a sharp point proceeding from the stem or 



other organ, and not detachable without tearing. 

 Spinvie, a small spine. 

 Stamen, male organ of the flower, consisting of a short 



or long stalk (sometimes wanting) called the filament, 



which supports the anther. The latter is composed of 



1 or 2 pouches or cells, containing the pollen, by means 



of which the pistil is fertilised. 

 Stellate liairs. hairs with branches radiating like a star. 

 Stigtna, see pi.stil. 

 Stipides, 2 small appendages growing at the base of the 



petiole. 

 Stolon, a creeping runner or sucker growing at the base 



of the stem, rooting at intervals and producing new 



plants. 

 Striate, marked with parallel, longitudinal lines. 

 Style, see pistil. 

 Sub, a prefix meaning (1) slightlii. almost, as in siiherect; 



(2) under, infeiior, as in subfamily. 

 Tomentose , densely covered with short, soft, matted hairs. 

 Toothed (dentate), notched so as to resemble a row of 



teeth. 

 Trichidomons, .stem or branches divided into thiee, once or 



several times. 

 Trifid, cut into 3 parts. 

 Truncate, cut off squarely. 

 Tuber, a swollen, fleshy root or rootstock. 

 Tubercle, a small wartlike protuberance. 

 Tuberculatr, covered with tubercles. 

 Tunic, nu^nibranous envelope of a bulb. 



