144 SUBSTANCE, he. OF LEAVES. 



tima, (76) Engl. Bot. t. 175, and Narcissus poeticm, 

 t. 275. 

 Carmatum, keeled, when the back is longitudinally 



prominent, as Narcissus bijlorus, t. 276. 

 Ensiforme^ sword-shaped, is a two-edged leaf, tapering, 

 to a point, slightly convex on both surfaces, neither of 

 which can properly be called upper or under, as in 

 most of the genus Iris. (77) See Curt. Mag. t. 671, 

 t. 9, &c., and FL Grcec. ?. 39 and 40. 

 Anceps^ two-edged, is much the same as the last. 

 Acinaciformc, scimitar-shaped, compressed, with one 

 thick and straight edge, the other thin and curved, as 

 Mesemhryanthemum acinaciforme above mentioned. 

 Dolahnforme^ f. 98, hatchet-shaped, compressed, with 

 a very prominent dilated keel, and a cylindrical base, 

 as M. dolabriforme. Dill. Elth. t. 191, Curt. Mag. t. 

 32. 



These two last terms might well be spared, as they 

 seem contrived only for the plants in question, and in- 

 deed are not essentially distinct from each other. 

 Trigonum^f. 99, three-edged, having three longitudinal 

 sides and as many angles, like M. deltoides. Dill. 

 Elth. t. 195, Linn. Phil. Bot. t. \.f. 58. Linn^us 

 has erroneously referred to this figure to illustrate his 

 term deltoides ; misled, as it should seem, by the 

 name of the plant to which it belongs ; but his defi- 

 nition is foreign to the purpose, see/?. 133, and alludes 

 to the outline of a flat leaf. 

 Triquetrum differs from trigonum only in being used 

 by Linnaeus for a three-sided awl-shaped leaf, as M. 



(76) [Sea Plantain, native.] (77) [Flag, or Flower dc luce.j 



