12 



INTRODUCTION. 



PLATE II. 



SIMPLE LEAVES continued. 



Fig. 



39. Folium crispum, a curled leaf. 



40. obtusum, a leaf which terminates obtusely. 



41. acutum, a leaf which terminates in an acute 



angle. 



42. acuminatum, a leaf whose apex is subulate or 



awl-shaped. (Vide Fig. 8.) an acuminate 

 leaf. 



43. obtusum acumine, a sharp-pointed leaf, which 



does not begin to taper till very near the apex 

 obtuse with a point. 



44. emarginatum acute, a leaf, the apex of which 



is deficient in its margin, and ends sharply. 



45. cuneiforme emarginatum, a leaf that is shaped 



like a wedge, and has a rounded notch or 

 deficiency at the apex. 



46. retusum, a leaf which ends in an obtuse sinus. 



47. pilosum, a leaf, from the surface of which pro- 

 ceed long distinct hairs. 



48. tomentosum, a leaf whose surface is covered with 



a beautiful white down. Vide tomentum. 



49. hispidvm, a leaf whose surface is covered with 



hard bristles. 



50. ciliatum, a leaf, the margin of which is fringed 



like an eye-lash, (cilium.) 



51. rugosum, (ruga, a wrinkle) a wrinkled leaf. 



52. venosum, a leaf whose surface abounds with veins 



or branched vessels. 



53. nervosum, a leaf whose surface abounds with 



nerves, ribs, or simple unbranched prolonga- 

 tions of the pedicle. 



54. papillosum, a leaf, from the surface of which 



arise little bladders or blisters, (papilla, a 

 nipple.) 



55. linguiforme, a tongue-shaped leaf. 



56. acinaciforme, a leaf shaped like a Persian sci- 

 mitar, (acinaces.) 



57. dolabriforme, a leaf which in figure resembles a 



hatchet, (dalabra, a carpenter's axe.) 



58: delteides, a leaf imagined to resemble the Greek 



delta, as in black poplar. 



59. triquetrum, a three-sided leaf, as in anthericum 



ossi/ragum. 



60. canaliculatum, (canaliculus, a little pipe, or chan- 

 nel) a channelled leaf; a leaf that has one 

 longitudinal groove, running from the base to 

 the apex on the upper surface, the lower being 

 convex. 



Fig. 



61. Folium sulcatum, a furrowed or fluted leaf; a leaf that 

 has several deep grooves or furrows, and in 

 the same direction as the channelled leaf. 



teres, a cylindrical or pillar-shaped leaf. 



panduraforme, a leaf shaped like a violin, or 



Spanish guitar, as in rumex pulcher, (pandura, 

 a musical instrument with three strings.) 



lyratum, a lyre-shaped leaf. 



62. 

 63. 



64. 



COMPOUND LEAVES. 



1. Folium binatum, a fingered leaf with two leaflets. 



2. ternatum foUolis sessilibus, a fingered leaf with 



three leaflets that are sessile. See fie. 12 



and 14 in Plate VI. 



ternatum foUolis petiolatis, a fingered leaf havino- 



three stalked leaflets ; the reverse of the pre" 

 ceding term. 



digitatum, in general a fingered leaf; in the figure 



before us, in particular, a leaf of that descrip- 

 tion with five sessile leaflets. 



pedatum, a leaf somewhat resembling a bird's 



foot ; exemplified in the passion flower, and 

 black hellebore. 



pinnatum, cum impart, a pinnate or winged leaf 



with an odd leaflet at the apex. 



abrupte pinnatum, a pinnate leaf, which at the 



apex has neither an odd leaflet nor tendril. 



pinnatum, alternatim, a pinnate leaf having the 



leaflets placed alternately along the mid-rib. 



pinnatum foUolis oppositis, a pinnate leaf with 



opposite leaflets. 



interrupte pinnatum, a pinnate leaf with unequal 



leaflets interruptedly winged. 

 pinnatum cirrhosum, a pinnate leaf terminated 

 by a tendril. 



*pinnatum conjugatum, a pinnate leaf with only 



two pair of leaflets. 



pinnatum decursivc, a leaf decursively pinnate, 



that is, in which the leaflets run down or 

 extend themselves into the stalk. 



pinnatum articulate, a pinnate leaf, in which the 



common footstalk connecting the leaflets is 

 articulate or jointed. 



* The reader mast be careful to distinguish betwixt folium binatum and 

 folium conjugatum ; the first being the lowest modification of the digitate or 

 fingered leaf, the second the lowest of the pinnate or winged one. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 12.. 

 13.- 



14. 



