40 PRINCIPLES OF BOTANY, ETC. 
thick leaf, on one side sharp and arched, on the 
other, straight and broad. | 
120. Axe-shaped, (dolabriforme), when a fleshy 
leaf is compressed, circular on the upper part, con- 
vex on the one side, sharp-edged on the other, and 
cylindrical at the base, fig. 244. 
121. ‘Tongue-shaped, (/inguiforme), when a long 
compressed leaf ends in a round point. 
122. ‘Three-sided, (¢riquetrum), when the leaf is 
bounded by three narrow sides, and is at the same 
time long. 
123. Deltoid, (delteides), when a thick leaf is 
bounded by three broad surfaces, and is at the 
some time fhort, fig. 231. 
124. Four-cornered, (setragonum), when a leat, 
long in proportion, 1s bounded by four narrow sur- 
i as in the Pinus nigra. 
25. Warty, (verrucosum), when short, fleshy 
eh are truncated, and stand in thick heaps, as in 
some Euphorbia, fig. 228 
126. Hook-shaped, Ain tianos when a fleshy 
leaf is flat above, compressed. at the sides, and 
bent back at the point, fig. 280%. 
E. In respect of Situation and Position. 
127. Opposite, (jolie opposita), § 13; No. 10; 
198. Alternate, (alierna), § 13; No.9; fig. 23. 
129. Scattered, (sparsa), when the leaves stand 
thick on the stem, without any order. 
AVES 
* All these leaves, from Nos. 111 to 126, are thick and 
fleshy; only Nos. r12, 122 and £24 are sometimes in certain 
plants membranaceous, 
130. Crowd- 
