Glossary xxxi 



SINUS: the recess between the lobes of a leaf. 



SORI: the fruit-dots of ferns. 



SPADIX : a fleshy spike as in the Araceae. 



SPATHE: a large bract or pair of bracts enclosing a 



flower or an inflorescence. 

 SPATULATE : spoon-shaped. 



SPIKE: a flower-cluster in which the flowers are stalk- 

 less on an elongated axis. 

 SPORANGES : the sacs containing the spores. 

 SPORE: the reproductive body of ferns. 

 SPOROPHYLL: leaf-like organ or receptacle containing 



spores. 

 STAMEN: the organ of the flower which produces the 



pollen. 

 STAMINODIA: sterile stamens or structures which are 



developed in the place of stamens. 

 STELLATE : star-shaped. 

 STIPE: the leaf-stalk of a fern. 

 STIPULE : an appendage such as is found at the base of 



many leaf-stalks. 



STOLON : a trailing and rooting shoot. 

 STRIATE: marked with slender, longitudinal stripes. 

 STRICT : straight and upright. 



STYLE : (of pistil) the elongated portion at top of ovary. 

 SUBULATE : awl-shaped. 

 SUPERIOR: (side of flower) the one next the axis of a 



flower-cluster; (ovary) free from calyx tube. 

 TERETE: cylindrical, circular in cross-section. 

 TERNATE: in threes. 



TOMENTOSE: clothed with matted wool-like hairs. 

 TORULOSE: knobby; swollen at intervals. 

 TRUNCATE: as if cut off at the top. 

 TUBERCLE: a small knob-like outgrowth. 

 TURBINATE: top-shaped. 

 UMBEL: an umbrella-like flower-cluster. 



