XXIV 



GLOSSARY. 



Syncarpy. — The union of fruits. 

 Syncotyly. — The union of cotyledons. 



Teleological. — Relating to purpose and utility in organization 

 and function. 



Tendril. — A leaf, leaflet, stipule, shoot, or inflorescence modi- 

 fied for a climbing function. 



Teratology. — Lit. the science of wonders; the department of 

 morphology which treats of the abnormal forms of organs 

 and tissues. 



Ternate. — Of a compound leaf with three divisions. 

 Tetrachotomy . — Apical division of an organ into four equal 



or unequal parts of equal rank. 

 TIi alius. — A plant in which no vascular tissue, or indications 



of such, occur. 



Thorn. — A leaf, part of a leaf, or a shoot or branch which 

 has become radially symmetrical and terminates in a hard 

 prickly point. 



Torsion. — Twisting, without any movement in space of the 



organ involved. 

 Tracheide.— Water-conducting element with closed ends. 

 Traumatic. — Relating to wounds. 



Trichome. — The category to which all organs of hair-nature 



pertain, i. e. a unicellular epidermal outgrowth. 

 Trifoliolate. — Of a compound leaf with three leaflets. 

 Trigonal. — Three-angled. 



Triplets. — Individuals resulting from tripartition of the ovum. 

 Truncate. — Presenting the appearance of having an apical 



portion abruptly cut off. 

 Tuber. — A swollen root or shoot, consisting almost entirely of 



parenchyma stored with food-material. 

 Twins. — Individuals resulting from bipartition of the fertilized 



ovum. 



Umbo. — Apophysis (in Coniferae). 



Vaginula. — The withered basal portion of an archegoniuni 



enclosing the base of the sporogonium. 

 Virescent. — Become green, and more or less foliaceous. 

 Volva. — The envelope enclosing the cap of a toadstool. 

 Whorl (of leaves). — Two or more inserted at the same node. 

 Winding. — A stem-movement due to the bending of the axis 



out of the vertical direction at every turn, as a result of 



the unequal rate of growth of the tissues at different 



points of the circumference. 

 Xp.rophytic. — Adapted to withstand drought. 



