578 MICROSCOPIC FORMS OF VEGETABLE LIFE THALLOPHYTES 



and often of a bright red colour, have an envelope made up of eight 

 triangular plates or 'shields' (B, C), often curiously marked, which 

 encloses a central portion of a light reddish colour ; this central 

 portion is principally composed of a mass of filaments rolled up 

 compactly together. From the centre of the inner face of each 

 shield a cylindrical cell termed a, manubriu/m projects inwards nearly 

 to the centre of the .sphere. The antherid is supported on a short 



FIG. 485. Generative organs <>f Cl'iini frui/ilm: A, antherid or globule developed 

 at the base of archegone or nucule; B, nucule enlarged, and globule laid open by 

 the separation of its valves; C, one of the valves, with its group of antheridial 

 filaments each composed of a linear series of cells, within every one of which an 

 antherozoid is formed ; in 1), E, and F the successive stages of this formation are 

 seen ; and at G is shown the escape of tin- mature antherozoids, H. 



flask-shaped pedicel, which also projects into the interior. At the 

 apex of each of the eight manubria is a roundish hyaline cell, called 

 .1 I'li/iitnl a in. and at the apex of each capitulnm six smaller cells or 

 ' secondary capitula. 1 From the centre of each of these secondary 

 capitula grow four long whip-shaped filaments (C). constituting the 

 mass already referred to. The number oflhe.se lilaments in each 

 antherid is about 200, and each of these filaments divides by 



