GLOSSARY. 



Abnormal : contrary to the regular 



(or normal) order of growth. 

 Accessor}/ (ramuli) : branchlets, dif- 



fering from the ordinary branch- 



lets, and fitted to a special pur- 



pose. 

 Acotyledonous (plants) : plants 



which are propagated by spores : 



Cryptogamia. 



Acrogenous : growing from the top. 

 Acuminated: produced into a long, 



slender and, usually, sharp point. 

 Adnate : adhering to an object by 



the whole surface. 

 Air-vessel : a hollow portion of the 



frond, filled with air. 

 Amorphous : without definite shape. 

 Analogue: |when a plant strik- 

 Analogous : jingly resembles ano- 



ther of a different genus, or fa- 



mily, so as to represent it, it is 



said to be the analogue of that 



plant. 

 Anastomose : to grow into another 



body, and unite with it. 



Apex, pi. apices 

 thing. 



the top of any- 



Apical : belonging to the apex. 



Appositional (branches) : when two 

 branches lie together, and partly 

 unite, so as to appear like a com- 

 pound branch. In some Confer- 

 void Algae (Oscillatoriacece), a 

 seemingly branched filament is 

 composed of many simple fila- 



ments, so lying together; such 

 would be called an appositionally 

 branched filament. 



Appressed : closely approximated, 

 or, (in branching), when the small- 

 er branches lie close to the larger 

 ones, standing very erect, 



Areolated: j marked out into regu- 



Areola, ee : Jlar spaces (or areolee), 

 like a pavement. 



Articulation : when a frond consists 

 of a single string of cells, each 

 cell is called an articulation ; lite- 

 rally, a joint. 



Articulated : having a jointed ap- 

 pearance. 



Asci: membranous cases in which 

 the spores of Lichens and Fuugi 

 are contained. 



Axil : the angle formed by the in- 

 sertion of a branch, or division of 

 a frond. 



Axis: a central column; or, the 

 central portion or medullary sub- 

 stance of the frond. 



Base : the bottom of anything. 

 Basal : belonging to the base. 

 Branchlet : (same as ramulus) ; the 



ultimate division of a compound 



frond. 

 Byssoid : exceedingly slender, like 



cobwebs. 



Calcareous : formed of carbonate of 



lime. 

 Calli : hard parts. 



