GLOSSARY. 391 



MammiUatedj hemispherical^ with a wart on its tip. 

 Midrib, a large vein^ termed percurrent when continuing 



the whole length of the frond. 

 Mitriform, mitre-shaped. 

 Moniliform, beaded like a necklace. 

 Mucroiiatedy rounded apex armed with a spine. 

 Nerve, a faint vein. 

 Obsolete, when wearing away. 

 Parasite, Parasitic, growing on another plant. 

 Patent, spreading. 



Pedicel, Peduncle, the stalk of the fruit. 

 Peripltery, an envelope. 

 Plienogamous, flowering plants. 

 PinncE, winged leaflets or portions of the frond. 

 Placenta, a pillar often formed by the thickening of the 



partitions of the pericarp : the part to which the spores 



are attached. 

 Polymorphous, many-shaped. 

 Process, any projecting part. 

 Piilvinate, shaped like a cushion. 

 Pyriform, pear-shaped. 

 Retiform, like net-work. 

 Revolitte, rolled back. 

 Rotund, round. 



