306 



INDEX AND GLOSSARY. 



Node, 227, 202. 



Normal, regular, according to rule. 



Number of Genera, 24ii. 



Number of Species, 24fi. 



Aut^ a simple, 1-seeded, bard fruit. 



Oh fin composition) implies inversion.^ as 



Ohcordate, 'nversely beart-sbaped, 34. 



ObUinceolate, 17. 



Oblique, unequal, one-sided 



Obloncr, 16. 



Obovate, 17. 



Obsolete, indistinct, as if worn out. 



Obtuse, blunt, 33. 



Obvolute, 138. 



Oclirese, 47. 



Odd-pinnate, 87. 



Off-set, a sbort, thick runner. 



Opercular dehiscence, 104. 



Opposite, 50. 



Orbicular, rounded, 16. 



Orders, 247. 



Ordiaal, relating to the orders. 



Oval, 16. 



Ovary, 121, 123. 



Ovate, 2. 



Ovoid, egg-shaped. 



Ovules, 123. 



Pales, the inner chaff' of grass flowers. 

 Palmate, hand-shaped. 

 Palmate venation, 10. 

 Palmately ternate, 38. 

 Panduriform, fiddle-shaped. 

 Panicle, 153. 



Papilionaceous, 89. [cesses. 



PapiUous, with small, gland-like pro- 

 Pappus, 18S. 

 Parallel venation, 11. 

 Parasite, a plant living on other plants. 

 Parietal, of, or adjoining the wall ; as 

 Parietal placentae — Fig. 26t>. 

 Pectinate, comb-liice, with long, narrow 



segments. 

 Pedate, foot-shaped, 26. 

 Pedicel, 143. 



Pedicellat'i, furnished with a pedicel. 

 Peduncle, 143, 

 Pellucid, transparent. 

 Peltate, 20.— Fig. 25. 

 Pendulous, drooping, hanging down. 

 Pentaiidruus, with 5 stamens. 

 Pepo, 175. 



Perennial, enduring 3 years or more, 213. 

 Perfect flower, 110. 

 Perfoliate, 42. 



Perianth, 66. 



Pericarp, 166. 



Ptvigynous, inserted into the calyx, 83. 



Persistent, permanent, not falling off. 



Personate, i)7. 



Petal, 65. 



Petaliferse, 257. 



Petaloid, resembling petals. 



Petiole and Petiolate, 3. 



Petiolule, 35. 



Phfenoganiia, 250. 



Pilous, 62. 



Pine-apple, 183. 



Pinna, (wings), segments of a pinnate 



leaf. 

 Pinnate, 36. 

 Pinnatelv ternate, 38. 

 Pinnatifi'd, 24. 

 Pinnatisect, 25. 

 Pistil, 68.— Lesson 18. 

 Pistillate, bearing pistils. 

 Pith, the central cellular substance of the 



stem. 

 Placenta, a lobe or fleshy ridge bearing 



the seeds. 

 Plaited, same as Plicate. 

 Plan of the flower. — Lesson 17. 

 Plicate, folded like a fan. 

 Plumous, feathery or feather-like. 

 Plumule, 190, 191. 



Pod, dry fruit ; as capsule, legume, (fee. 

 Pollen, 100, 



Poly (in composition) signifies many ; as 

 Polyandrous, with many stamens. 

 Polyadelphous, 107. 

 Polygamous, having perfect flowers, with 



staminate or pistillate flowers on the 



same plant. 

 Polypetalce. See Dialypetalas, 258. 

 Polypetalous, 75, 258. 

 Polysepalous, 75. 

 Pome, 176. 



Porous dehiscence, 104. 

 Premorse, abrupt at end, as if bitten off. 

 Prickles, 57. 



Process, any projection from the surface. 

 Procumbent, 224. 

 Prostrate, 224. 

 Pubescent, 61. 



Pulp, the soft, juicy parts of fruits. 

 Punctate, dotted as if with points. 

 Pyrifonn, pear-shaped. 

 Pyxis, 17S. 



Quaternate, growing in fours. 

 Qainate, growing in fives, 40. 



