376 
GLOSSOLOGY. 
BOOK III. 
arc of a circle ; as the fruit of Astragalus liamosus, Medicago 
falcata, &c. 
36. Scimitar-shaped (acinaciformis) ; curved, fleshy, plane on the 
two sides, the concave border thick, the convex border thin ; 
as the leaves of Mesembryanthemum acinaciforme. 
37. Axe-shaped (dolabriformis) ; fleshy, nearly straight, some- 
what terete at the base, compressed towards the upper end ; 
one border thick and straight, the other enlarged, convex, 
and thin ; as the leaves of Mesembryanthemum dolabri- 
forme. 
38. Falcate (falcatus) ; plane and curved, with parallel edges, 
like the blade of a reaper's sickle ; as the pod of Medicago 
falcata : any degree of curvature, with parallel edges, re- 
ceives this name. 
39. Tongue-shaped [linguiformis) ; long, fleshy, plain convex, 
obtuse ; as the leaves of Sempervivum tectorum, and some 
aloes. 
40. Angular (angulosus); having projecting longitudinal angles. 
We say obtuse-angled when the angles are rounded, as in the 
stem of Salvia pratensis ; and acute-angled when they are 
sharp, as in many Carices. Some call these angles the 
acies, 
41. Three-cornered (trigonus); having three longitudinal angles 
and three plain faces, as the stem of Carex acuta. 
51 52 53 54 56 
42. Three-edged {triangularis y triqueter) ; having three acute 
angles with concave faces, as the stems of many plants; 
generally used as a synonyme of trigonus. 
43. Two-edged (^anceps) ; compressed, with two sharp edges, as 
the stem of an Iris. 
44. Keeled (carinatus) ; formed in the manner of the keel of 
