314 GLOSSARY. 



Serrate: toothed like a saw. 



Shaft'; the stem or straight part between the ends. 



Silicious: resembling or formed of silica. 



Spherical: round like a ball. 



Spinous: bearing spines. 



Spiral: winding like a screw. 



Spore: the minute seed of flowerless plants. 



Statoblast: the winter egg of the Polyzoa. 



Striated: finely streaked. 



Sub: in compound words, meaning under, or less than. 



Submerged: under water. 



Sulcation: a groove. 



Tortuous: winding, twisting. 

 Translucent : semitransparent. 

 Truncate: as if cut off square. 

 Tubercle: a small, knob-like elevation. 

 Tubular : resembling or formed of a tube. 



Utricle: a little sack or bladder. 



Ventral: pertaining to the lower surface; opposed to 



dorsal. 

 Ventrum: the concave side of Closteriuni (as here used). 

 Viscera: the intestines, or abdominal contents. 

 Visor: the fore-piece of a cap. 



Who7i: several leaves in a circle around the stem. 



Zoophytet a word applied to certain plant-like animals. 



