TO BOTANY. 135 



Teretes*, round like a pillar ; when they are for 

 the most part cylindric. 



Semicylindric, like a halved cylinder; when they 

 are round on one side, and flat on the other. 



Tubulose, like a tube or pipe ; when upon cutting 

 them they appear to be hollow within. 



Carnose, fleshy or succulent ; when they are filled 

 with a pulp. 



Compressed, flatted ; when they are so compress- 

 ed by their opposite marginal sides, that the sub- 

 stance of the leaf becomes greater than the disk. 



Plane, le\ 7 el ; when they have both surfaces every 

 where parallel. 



Gibbous, bunched ; when by the plenty of pulp 

 both the surfaces are rendered convex. 



Convex, rounding; when the disk rises higher 

 than the sides. 



Deprest, pressed down ; when the sides rise higher 

 than the disk. 



Canaliculate, channelled ; when a deep furrow 

 runs along it, and sinks it almost to a half cylinder. 



Ancipites, double-faced ; when the disk is convex, 

 and there are two prominent longitudinal angles. 



Ensiform, sword-shaped ; when they are ancipites, 

 and grow narrower from the base to the apex. 



Acinaciform, faulchion or scymitar-shaped ; when 

 they are fleshy and compressed, with one edge convex, 

 and narrow, and the other straighter and broader. 



Dolabriform, hatchet shaped ; when their figure is 

 roundish, compressed and obtuse, gibbous outwardly 

 with a sharp edge, and taper round the lower part. 



Linguiform, tongue-shaped ; when they are linear, 



* Round one way and long the other : our language has no 

 distinct term to express roundness in this sense ; the figure is 

 by Mathematicians called a cylinder, from a Grc.ok word sig- 

 nifying to roll, a body of this figure being the best adapted to 

 that sort of motion. 



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