ANALYSIS OF SUBJECTS. 1 1 



feather venation 1, Orbicular 2, Elliptic 3, Oblong 4, Ovate 5, Lanceo- 

 late 6, Obovate 7, Spathulate 8, Cordate 9, Aunculate 10, Hastate 11, 

 Sagittate 12, Eeniform a, Forms dependent on the development of. the tissue 

 13, Runcinate 14, Lyrate 15, Pinnatifid 16, Sinuate. 233, Forms resulting 

 from radiate venation 17, Palmate 18, Digitate 19, Pedate 20, Lacinate 

 21, Peltate 22, Eeniform, &c. 234, Forms of parallel-veined leaves 23, Linear 

 24, Oval, &c. 25, Cordate 26, Acerose. 



5. MARGIN. 90. 



235, How modified 1, Entire 2, Dentate 3, Serrate 4, Crenate 5, Erose 

 6, Undulate 7, Spinous 8, Incised 9, Laciniate 10, Crisped 11, Repand. 



6. APEX. 90. 



236, Termination of leaf 1, Acute 2, Obtuse 3, Acuminate 4, Emargin- 

 ate 5, Retuse 6, Mucronate. 



$7. SURFACE 90. 



237, Terms descriptive of the epidermis on the leaf or elsewhere 1, Glabrous 

 2, Pubescent 3, Rough 4, Pilose 5, Hoary 6, Villose 7, Woolly 8, To- 

 mentose 9, Rugose 10, Punctate 



8. % COMPOUND LEAVES. 91. 



238, Leaf becomes compound on what principle. 239, Leaflets artictilated. 

 240, Forms resulting from the feather-veined arrangement 1, Pinnate 2, Equalh 

 pinnate unequally cirrhose 3, interruptedly 4, Number of leaflets tri- 

 foliate single 5, bipinnate 6, tripinnate 7, biternate 8, triternatc. 241, 

 Forms resulting from radiate venation 9, Quinate 10, Septinate. 242, Leaf 

 with regard to insertion 1, Amplexicaul 2, Perfoliate 3, Decurrent 4, Con- 

 nate. 243, Combined terms, a, the preposition su-b. 



9. ASCIDIA, STIPULES, AND BRACTS. -93. 



244, Leaves of Teazel Tillandsia Arum. 245, Ascidia, a, of the Sarracenia, 

 how formed, &c. 246, Nepenthes. 247, Dischidia. 248, Dion sea. 249, Stipules, 

 varieties positions. 250, Their nature. 251, Leaves stipulate exstipslate 

 stipels. 252, Bracts, 253, their nature. 254, Involucre involucel, 2o5, of the 

 Composite. 256, Glume awn palae valves. 



10. DURATION. 96. 



257, Leaves temporary 1, Fugacious 2, Deciduous 3, Persistent. 258, Fall 

 of the leaf previous changes. 259, Cause of defoliation. 



11. PHYSIOLOGICAL STRUCTURE. 96. 



260, Of the frame-work, : rr, of the lamina. 261, Parenchyma disposed in two 

 layers, c, how covered. 262, Internal structure of the parenchyma. 263, Ar- 

 rangement of the cells, a, chlorophyll. 264, Stornata communicate with what 

 found on which surface. 265, Vessels of the latex their course. 266, Leaf of 

 Oleander air cells. 



12. OF THE FUNCTIONS OF LEAVES. 93. 



267, Enumerated result latex. 268, Crude sap consists of. 269, Exhala- 

 tion 270, distinguished from evaporation 271, takes place through the stoma- 

 ta occurs only in the light why a, illustration. 272, Exhalation dependent 

 on absorption quantity illustration. 273, Absorption, a, illustration. 274, 

 by their lower surface illustration. 275, Respiration 276, consists in 277, 

 constant the result 278, illustration 279, two periods of its greatest activity 

 o, in germination, , flowering proportion of oxygen evolved. Note, illus'tra- 

 tion. 280, Life of the plant dependent on. 281, Digestion the process. 2S2, 

 Carbon its sources, a, illustration. Plants blanched in the dark. 283, Fixation 

 of carbon relative amount absorbed and evolved. Experiments of Dr. Daubeny. 

 284, Relation of animal to vegetable kingdom in regard to carbon Reflections. 



