342 GLOSSARY 



Spi'reme ((T7reip>7jaa. a thing wound or coiled ; a skein), the skein or "Knauel" 



stage of the nucleus in mitosis, during which the chromatin appears in the form 



of a thread, continuous or segmented. (Flemming. 1882.) 

 Spon'gioplasm {(nroyyiov, a sponge; 7rAacr/x,a, a thing formed), the cytoreticulum. 



(Levdig, 1885.) 

 Ste'reoplasm {uTepto'i, solid), the more solid part of protoplasm as opposed to the 



more fluid " hygroplasm." (Nageli, 1884.) 

 Substantia hyalina, the protoplasmic ground-substance or "hyaloplasm." 



(Levdig. 1885.) 

 Substantia opaca, the protoplasmic reticulum or " spongioplasm." (Leydig, 



1885.) 

 Te'loblast (re'Aos, end; /^AacrTo?, a germ), large cells situated at the growing end 



of the embryo (in annelids, etc.), which bud forth rows of smaller cells. 



(Whitman, Wilson, 1887.) 

 Telole'cithal (reAos. end ; AeKt^os. yolk), that type of ovum in which the yolk is 



mainlv accumulated in one hemisphere. (Balfour, 1880.) 

 Telophases. Telokine'sis (reAos, end), the closing phases of mitosis, during 



which the daughter-nuclei are re-formed. (Heidenhain, 1894.) 

 To'noplasts (two?, tension ; TrAao-ro?, form), plastids from which arise the vacuoles 



in plant-cells. (De Vries, 18S5.) 

 Trophoplasni (rpocfiy, nourishment ; irXdafxa) . 1 . The nutritive or vegetative 



substance of the cell, as distinguished from the idioplasm. (Nageli, 1884.) 



2. The active substance of the cytoplasm other than the •• kinoplasm " or 



archoplasm. (Strasburger, 1892.) 

 Tro'phoplasts (rpocfyy]. nourishment; TrAao-ro?, form), a general term, nearly equiv- 

 alent to the "plastids" of Schimper, including '■ anaplasts " (amyloplasts), 



"autoplasts" (chloroplasts), and chromoplasts. (A. Meyer, 1882-83.) 

 Yolk-nucleus, a word of vague meaning applied to a cytoplasmic body, single or 



multiple, that appears in the ovarian egg. [Named "Dotterkern" bv Carus, 



1850.] 

 Zy'gote or Zy'gospore (^uyoV, a yoke), the cell produced by the fusion of two 



conjugating cells or gametes in some of the lower plants. 



