GLOSSARY. 73 



branchlets, the whorled processes of limited growth, produced 



at the stem-nodes, and bearing the reproductive organs; 



by some authors styled "leaves." 

 bulbils (bulbulus, a little bulb), agglomerations of cells 



containing starch granules developed at the root- and 



stem-nodes of some Charophytes. 



capitula (lat. little heads) , the head-cells in the antheridium. 

 charads, a name for the group of Charophytes. 

 tclonarium (K/\WV, a young branch), a term applied to the 



oogonium . 



fcondylium (KOV$U\O, a knuckle), a term applied to the 

 antheridium. 



conoid (Kivvog, a cone; JSoc, resemblance), cone-shaped. 

 Conoidese, a section of Tolypella having conical ultimate 

 cells to the rays of the branchlets. 



coronula (lat. a little crown), the small crown-like process of 

 five or ten cells surmounting the spiral-cells of the 

 oogonium, sometimes styled corona or crown. 



cortex (lat. bark, rind), the cellular sheath surrounding the 

 stem and branchlets of some Charese ; cortical-cells, the 

 cells of which it is composed, distinguished as primary 

 and secondary; the primary representing* the axis of each 

 cortical series, and consisting of nodal and internodal 

 cells ; the secondary consisting of the lateral cells given off 

 by the nodal cells, and lying alongside the primary series. 



cyclosis (KVK\OQ, a circle), the rotation of protoplasm within 

 the cell. 



dactyl (SaKTuAoc, finger), an ultimate ray of the branchlet of a 

 Nitella. 



diarthrodactylous (Stc, twice; cipOpov, a joint; SajcruAoe, a 

 finger), having each dactyl composed of two cells. 

 Diarthrodactylse, a section of Nitella [Braun]. 



diplostephanous (StirXoog, double ; oT</>avoc, a crown), having 

 a double circle of stipulodes at the base of each whorl of 

 branchlets. Diglostephanae, a section of Cham. 



diplostichous (cWAooc, double; or<, a row), having a cortex 

 in which there are two rows of cells to each branchlet or 

 bract-cell. Diplostichse, a subsection of Char a. 



tepigone (STH, upon ; yovi}, offspring), a term applied to the 



oogonium. 



flabellate (flabellum, a fan), having the secondary rays of the 

 branchlet once or repeatedly furcate. FlabellatsBj a 

 subsection of Nitella. 



flask-cell, the stalk-cell of the antheridium. 



