ANALYSIS OF SUBJECTS. 11 



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

 late — G, Oboviite — 7, Spatluilate — &, Cordate — 9, Auriculatc — 10, Hastate — 11, 

 Sagittate — 12, Kcniform — <?, Korms dependent on the dcvelonment of the tissue — 

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

 from radiate venation — 17, Palmate — IS, Digitate — 19, Pedate — 20, Lacinate — 

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

 21, Oval, &c. — 25, Cordate — 26, Acerose. 



§5. MARGIN.— 90. 



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

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



§6. APEX. — 90. 



236, Tei-mination of leaf — 1, Acute — 2, Obtuse — 3, Acuminate — 4, Emargin- 

 Jite — 5, Retuse — G, 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 — S, To- 

 mentose — 9, Rugose — 10, Punctate. 



§8. COMPOUND LEAVES. — 91. 



238, Leaf becomes compound on what principle. 239, Leaflets — articulated. 

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

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

 foliate — single — 5, bipinnate — 6, tripinnate — 7, biternate — 8, triternate. 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 sub. 



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



244, Leaves of Teazel — Tillandsia — Arum. 245, Ascidia, — a, of the San-acenia, 

 hoAV formed, &c. 246, Nepenthes. 247, Dischidia. 248, Diona?a. 249, Stipules, — 

 varieties — positions. 250, Their nature. 251, Leaves stipulate — exstipulate — 

 stipels. 252, Bracts, — 253, their nature. 254, Involucre — involucel, — 255, of the 

 Compositoe. 256, Glume — awn — palas — 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, — «-, of the lamina. 261, Parenchyma disposed in two 

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

 rangement of the cells, — a^ chlorophyll. 264, Stomata 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. — 99. 



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 — 

 a, in germination, — ^, flowering — proportion of oxygen evolved. — Notf^ illustra- 

 tion. — 2S0, Life of the plant dependent on. 281, ^Digestion — the process. 282, 

 Cai-bon — its sources, — a, illustration. — Plants blanched in the dark. 2S3, Fixation 

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

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



