! WITH A HAND-LENS 



'•5 



Vesicular^ inflated like a bladder. 

 II 'dry, see undulate. 

 TERMS USED IN CONNECTION WITH THE REPRODUCTIVE ORG 



. It rocarpous, having the sporophyte 

 terminal on a stem or ordinary branch. 

 Acrocarpous mosses can usually be easily 

 distinguished by the erect habit as shown 

 in the figure. (Fig. iS.) The old sporo- 

 phyte often seems lateral in acrocarpous 

 mosses, because the stem grows on the 

 next year from a point just below the 

 base of the sporophyte. 



Aggregate, clustered ; usually ap- 

 plied to two or more sporophytes from 

 one perichsetium. 



Amentula, applied to the special an- 



theridia-bearing branches of Sphagnum. 



Androgynous, with antheridia and 



archegonia in the same cluster of leaves; 



/. e., either synoicous or paroicous. 



Antkeridium, the male reproductive 



organ containing the antherozoids. ( Fig. 



19.) 



Antkerozoid, the small flagellate male cell which escapes 



from the antheridium, and in wet weather swims to the arche- 



gonium and down its neck to the egg cell in the bottom. 



Archegonium, the flask-shaped female reproductive organ. 

 See also antherozoid. 



Autoicous or auta-cious, having 

 male and female organs on the same 

 plant. According to Braithwaite there 

 are three forms. 



1. Clad autoicous, with the male 

 organs on a special proper branch. 



2. Gonio autoicous, with the male 

 organs in a bud-like cluster, and ax- 

 illary on a female branch. 



3- Rhiz autoicous, male branch very short and cohering to 

 the female by the rhizoids. 

 Bisexual, synoicous. 



Cladocarpous, having the sporophyte terminatinga short spec- 

 1 fertile branch; somewhat like half-way between acrocarpous 



20 



and pleurocarpous 



Fontinalis. 



