76 BRITISH CHAEOPHYTA. 



scuta [scutum, a shield), see under shields. 



shields or scuta, the eight shield-like plates which unite to 

 form the exterior of the antheridium. 



spermatozoids {avipfia, a seed ; Zwov, an animal ; eiSog, re- 

 semblance), another term for antherozoid. 



spine-cells, spines, cells growing outwards from the nodal-cells 

 of the stem-cortex. 



spiral-cells, the five cylindrical cells which clasp the egg-cell. 



sporangium {(mopa, a seed ; uyytlov, a vessel), a term applied 

 to the oogonium. 



sporocarp [crwopa, a seed ; Kapwog, a fruit), the fertilised and 

 matured oosphere. Another term for the oospore. 



sporophyas, sporophydium {airopa, a seed ; <jf>vac, a shoot), a term 

 applied to the oogonium. 



sporostegium {airopa, a seed ; o-rEyj), a covering), a term applied 

 to the oogonium. 



stipulodes [stipula, little stalk or blade), certain small cells in 

 a single or double circle arising below, and very occa- 

 sionally also above, the whorl of branchlets in the Gharese 

 and growing outwards as papillae or more or less elongated 

 processes. 



streaming, a term for cyolosis. 



strise {lat. furrows), a term applied to the spiral ridges of the 

 oospore. 



sulci [lat. grooves), the spaces between the ridges of the 

 oospore; termed also fossulae. 



triplostichous [Tpnikooq, triple ; o-ti^, a row), having three rows 

 of cortical- cells to each branchlet or bract-cell. Triplo- 

 stichsB, a subsection of Char a. 



tubercle, a term sometimes applied to a bulbil. 



tylacanthous (ruAoc, a ridge; oKavda, a spine), having a stem- 

 cortex in which the primary cells are more prominent 

 than the secondary, so that the spine-cells appear to be 

 seated on ridges. Tylaranthie, a subsection of Chara. 



unistipulate [unus-, one; stipiila, a little blade), having a single 

 sfcipulode at the base of each branchlet. 



