186 



INDEX AND GLOSSABY. 



Normal, according to rule, regular. 

 Nuoiform, nut-like. 

 . nucleus, kernel (sc. ovule), SST. 

 Nut. See Glans, 562. 



Ob (in composition), denotes inversion ; as, 

 Obcompressed, flattened back and front. 

 Obcordate, 284. Oblaneeolate, 266. 

 Oblique, unequal-sided (so. leaves). 

 Oblong, 265. Obovate, 266. Obtuse, 283. 

 Obvolute (in sestivation), 214. 

 Ochrea, sheathing stipules, 249. 

 Oohroleilcons, cream-color, pale yellow. 

 Octo (in Greek composition), eight. 

 Octandria, 877. Octandrous, 8-stamened. 

 Oct6gynous, 8-styled, 878. 

 Offset, a short lateral shoot, 159. 

 Oligos (in Greek composition), few ; as, 

 Oligandria, witli few stamens. 

 Olivaceous, olive-green, brownish-green. 

 Opaque, dull, not shining. 

 Opercular, with a lid, 496. 

 Opposite, two at a node, 153, 222. 

 Orbicular, Orbiculate, circular, 265. 

 Orchidaceous, 484. 

 Organogens, 829. 

 Organography, 39. 



Organic world, 30. Organic soil, 837. 

 Orth6tropous (ovule), erect, 536. 

 Osseous, bony, as the peach-stone. 

 Oval, 265. Ovate, 265. 

 Ovary, 515. Ovule, 532. 

 Ovoid, egg-shaped as in fruits. 

 Oxygen, 831. 



Palese or Pales, 339, 489. 



Paleaceous, chaffy, having pales. 



Palmi-veined, 260. Palmate, 272. 



Panduriforin, fiddle-shaped. 



Panicle, 352. Paniculate, panicled. 



Papilionaceous, 475. 



Pappus the calyx of Composites, 485. 



Parallel-veined, 258. 



Pardphyses, jointed threads arouna the 



antheridia of mosses. Pig. 522. 

 Parasites, 144. 

 Parenchyma, 664, 730. 

 Parietal, on the wall (paries), 526. 

 Parted, deeply divided into parts. 

 Patent, wide open. Patulous, half open. 

 Pear-shaped, ohovoid, larger above. 

 Pectinate, combed, finely pinuatifid. 

 Pedate, shaped like a bird's -foot, 273. 

 Pedicel, 328. Peduncle, 327. 

 Peltate, shield-form, 2'71. 

 Pendent, Pendulous, hanging, drooping. 

 Penioillate, with a tuft of hairs, as if a 



camel's-hair pencil. 

 Pente (in Greek composition), five ; as, 

 Pentamerous, B-parted. 

 Peutandrous, 503. Pentandria, 877. 



Pepo, a fruit like a melon, 568. 

 Perennial, living several years, .92. 

 Perfect flower, with both stamen aa:id 



pistil. 

 Perfoliate (through the leaf), 293. 

 Peri (in Greek composition), around. 

 Perianth, 402; forms o^ 469. 

 Pericarp, 547. 

 Perigynium, 488. 

 Perigynous, 464. 

 Period of flowering, 365. 

 Perisperm, same as Albumen, 590. 

 Peristome, 632. 



Persistent, remaining long in place. 

 Personate, 480. 

 Petals, 401 ; forma o^ 455. 

 Petaliferas, 898. 

 Petaloid, with the form or texture of 



Petiole, 243. Petiolate, 239. 



Petiolule, 246. 



Phsenogamia, 89, 895. 



Phyllodium, plur. PhyUodia, 307. 



Phyllotaxy, leaf-arrangement, 220. 



Physiology, 41, 736. 



Phytology, 43 (Greek, phytos, a plant). 



Pileorhiza, cap of a rootlet, 725. 



Pileus, cap of some Pungals. Fig. 537, c 



Pilous, with erect, thin hairs, 298. 



Pine, size o^ 101, — Califomian, 101. 



Pinnate, 287. Pinuatifid, 268, 269. 



Pistil, 407, 511. 



Pitchers (leaves). See Asoidia, 308. 



Pith, 692. Pitted cells, 650, 667. 



Pitted, with depressions or excavations. 



Placenta, 520 ; free axile, 528. 



Pleurenchyma, 666. 



Plicate, plaited lengthwise as a fan, 394. 



Plumous, feathery. 



Plumule (a little plume), 103, 593. 



PoUeu, 508. Pollen tube, 756. 



PoUinia, masses of pollen, 500. 



Poly (in Greek compounds), 'many. 



Polyadelphous, 506,-877, § 3. 



Polygamous, Polygamia, 877, § 5. 



Polypetalse. Sec Dialypetalse, 903. 



Polypetalous, Polysepalous, 458. 



Pome, a fruit like an apple, 569. 



Posterior, next the axis. 



Potato, manner of its growth, 188. 



Precocious, flowering before the leaves. 



Praefoliation, vernation, 209. 



Premorse, ending abruptly, 185-. 



Press for drying plants, 57. 



Prickles, 18, 684. 



Primine, same as Testa, 535. 



Primordial utricle, 645. 



Prismdtie, prism-shaped, having several 



parallel, longitudinal angles. 

 Procumbent (stem), 148. Fig. 38. 

 Produced, extended more than usual. 



