ANALYSIS OF SUBJECTS. IX 



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

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

 Sagittate — 12, Reniform — 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 — IS, Digitate — 19, Pedate — 20, Lacinate — 

 21, Peltate — 22, Reniform, &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. 



5 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, WooUy — 8, To- 

 mentose — 9, Rugose — 10, Punctate. 



§8. coMPOu^^D leaves.— oi. 



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

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

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

 loliate — single — 5, bipinnate — 6, tripinnate — 7, bitemate — S, triteniate. 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 Sarracenia, 

 how formed, &c. 246, Nepenthes. 247, Dischidia. 24S, Dionsea. 249, Stipules, — 

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

 stipels. 252, Bracts, — 25.3, their nature. 254, Involucre — involucel, — 255, of the 

 Compositse. 256, Glume — awn — pate — valves. 



§10. DURATION.— 90. 



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

 of the leaf — previoiis changes. 259, Cause of defoliation. 



§11. PHYSIOLOGICAL STRUCTURE. — 96. 



260, Of the frame-work, — a, of the lamina. 261, Parenchyma disposed in two 

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

 rangement of the cells, — «, chlorophyll. 264, Stomata communicate with what — 

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

 Oleander — air ceUs. 



§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, Absoi-ption, — a, illustration. — 274, 

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

 constant — the result — 27S, illustration — 279, two periods of its greatest activity — 

 », in germination, — 5, flowering — proportion of oxygen evolved. — Notn, illustra- 

 tion. — 2S0, Life of the plant dependent on. 281, Digestion — the process. 2S2, 

 Carbon — 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. 



