GLOSSARY, 321 



otiptjles. — Small leafy organs placed at the base of the footstalks 



of the leaves in many plants. 

 oTYLE. — The middle portion of the perfect pistil, which rises like 



a column from the ovary and supports the stigma at its 



summit. 

 SuBCDTAUEous.— Situated beneath the skin. 

 Suctorial.— Adapted for sucking. 

 SuTDEEs (in the skull).— The lines of junction of the bones of which 



the skull is composed. 



Tarsus (pi. Tarsi).— The jointed feet of articulate animals, such 



as Insects. 

 Teleostean Pishes.— Fishes of the kind familiar to us in the 



present day, having the skeleton usually completely ossified 



and the scales homy. 

 Tentacula or Tentacles. — Delicate fleshy organs of prehension 



or touch possessed by many of the lower animals. 

 Tertiary. — The latest geological epoch, immediately preceding 



the establishment of the present order of things. 

 Trachea. — The windpipe or passage for the admission of air to 



the lungs. 

 Teidactyle. — Three-fingered, or composed of three movable parts 



attached to a common base. 

 Trilobites. — A peculiar group of extinct Crustaceans, somewhat 



resembling the Woodlice in external form, and, like some of 



them, capable of roiling themselves up into a ball. Their 



remains are found only in the Palaeozoic rocks, and most 



abundantly in those of Silurian age. 

 Teimorphic. — Presenting three distinct forms. 



Umbellifee^. — An order of plants in which the flowers, which 

 contain five stamens and a pistil with two styles, are supported 

 upon footstalks which spring from the top of the flower stem 

 and spread out like the wires of an umbrella, so as to bring all 

 the flowers in the same head (umbel) nearly to the same level. 

 (Examples, Parsley and Carrot). 



Ungulata. — Hoofed quadrupeds. 



Unicellulae. — Consisting of a single cell. 



Vascular. — Containing blood-vessels. 

 Vermipoem. — Like a worm. 



