GLOSSARY 



Peduncle The supporting stem of a flower or seed 



Pelagic On or near the high seas 



Pellucid Clear, admitting light 



Perforate Pierced through 



Peristome A cap, or cover of a cup, in plants 



Persistent Continuing through life 



Pigment Coloring matter 



Pinnate Shaped like a feather 



Pinnatified Divided in a feathery manner 



Pistillate Having a pistil and no stamens 



Plastron Lower shell of turtle 



Plicate Folded; forming folds or wn-inkles 



Plumbeous Lead-colored; dull bluish-grey 



Poissons French for fishes 



Prehensile Clasping 



Protuberance A small excrescence like a pimple 



Pubis Lower part of the pelvis 



Pulmonary Pertaining to the lungs 



Punctate Dotted with points 



Pupa An immature form ; transformation after the larval stage 



Pyloric csca Glandular appendage or sac opening into the alimentary canal, in fishes 



Pylorus The orifice through which food passes out of the stomach 



Quadrangular Having four angles 



Quadrilateral Having four sides 



Ray Cartilaginous rods in the fins, of fishes; arm of a star fish; the star fish 



Rhizomes A creeping branch or stem 



Rudimentary Undeveloped 



Rugose Rough with wrinkles 



Sagittate Lance or sword-shaped 



Sepal A leaf or division of the calyx 



Serrate Notched, like a saw 



Sessile Without a stem or peduncle 



Setiform Bristle- like 



Sinistral Left-handed 



Soft rays Branched fin-rays 



Specific gravity A weight which belongs to an equal bulk of each body 



Spiked A fin in which the main rays extend considerably beyond the tissue or web. 



single-rayed fin 

 Spikes Alternated growths on a common stem, in plants 

 Spinous Stiff or composed of spines 

 Stamen Male organ of flowers 

 Stamenate Furnished with stamens 

 Sternum The breast bone 

 Striate Striped or streaked 

 Sub Less than; not quite; under 

 Subulate Awl-shaped 

 Suture A grove or line in snail shells 

 Synonym A different word having the same meaning 



360 



