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. 

 ADVENTITIOUS 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. 

 APPRESSED. Turned upward against the stem ; said of small leaves. 

 ARCHEGONIA. The female organs on the prothallium. 

 AREOLA (PL. AREOL^E). A space enclosed by anastomosing veinlets- 

 AREOLATE. Having areolae. 



ARTICULATED. Jointed or having the appearance of a joint. 

 AURICLED. Eared. 



AURICULATE. With ear-like appendages. 

 BAST. Strands of strengthening tissue. 

 BIPINNATE. Twice pinnate. 

 BIPINNATI FID. Twice pinnatifid. 

 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. 



