GLOSSARY. 



Aculeate. — Armed with prickles. 

 Acuminate. — Tapering to a slender point. 

 Acute. — Pointed ; ending in a sharp point. 



Adventitious. — That which comes from abroad ; as a plant intro- 

 duced by chance. 

 ADVENrrnous Buds. — Buds produced without order on any part 



of the plant. 

 Amphibious. — Said of plants that are covered with water for a part 



of each year. 

 Anastomosing. — Forming a network ; as veins uniting with one 



another. 

 Androspore. — The smaller spore in Isoetes and various other fern 



allies ; a microspore. 

 Annulus. — A ring, especially that which surrounds the spore-cases 



in most ferns. 

 Antheridia. — The male organs on the prothallium. 

 Apiculate. — Terminating abruptly with a small point. 

 Appres.sed. — Turned upward against the stem ; said of small leaves. 

 Archegonia. — The female organs on the prothallium. 

 Areol.i (Pl. Areol/E). — A space enclosed by anastomosing veinlets- 

 Areolate. — Having areola;. 



Articulated. — Jointed or having the appearance of a joint. 

 Auricled. — Eared. 



Auriculate. — With ear-like appendages. 

 Bast. — Strands of strengthening tissue. 

 BlPiNNA'lE. — Twice pinnate. 

 Bipinn.vtifid. — Twice pinna tifid. 

 Blade. — The expanded, leafy portion of a frond. 

 Bristle. — A stiff hair; any slender outgrowth from the plant, as in 



the fruiting parts of filmy ferns. 

 Bulbiferous. — Bearing little bulblets. 



