TERMS.] 



GENERAL FORM. 



340 



35. Curved (arcuatus, curvatus) ; bent, but so as to represent the arc of a circle ; 

 as the fruit of Astragalus hamosus, 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 Mesembry- 

 anthemum acinaciforme. 



37. Axe-shaped (dolabriformus) ; fleshy, nearly straight, somewhat 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 

 dolabriforme. 



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, receives this name. 



39. Tongue-shaped (linguiformis) ; long, fleshy, plano-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 

 plane faces ; as the stem of Carex acuta. 



45 



42. Three-edged (triangularis, 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 Iris. 



44. Keeled (carinatus) ; formed in the manner of the keel of a boat ; that is to 

 say, with a sharp projecting ridge, arising from a flat or concave central 

 rib ; as the glumes of Grasses. 



45. Channelled (canaHculatus) ; long and concave, so as to resemble a gutter or 



channel ; as the leaves of Lygeum Spartum, Tradescantia virginica, &c. 



46. Boat-shaped (cymbiformis, navicularis) ; having the figure of a boat in 



miniature ; that is to say, concave, tapering to each end, with a keel 

 externally ; as the glumes of Phalaris canariensis. 



47. Whip-shaped (flagellifonrnis); long, taper, and supple, like the thong of a 

 whip"; as the stem of Vinca. This is confined to stems and roots. 



