542 



GLOSSAKr AND INDEX. 



Okra, 398. 



Oleaceae, 459. 



Oleraceoiis : of the nature of, or fit for, 

 pot-herbs. 



Oligo-, in Greek derivatives : few ; as 



Oligandrous : having few stamens. 



Oligosp&mous ; few-seeded. 



Olive, Olive-oil, 460. 



Onagracete, 419. 



One-celled plants, 61. 



One-sided: see Secund and Unilateral. 



Oiiphondia : the larger and eompound 

 spores of Lycopodiaceae. 



Opaque : the reverse of shining ; dull. 



Op^rculate: furnished with a, lid or 



Operculum: a lid, such as that of the 

 spore-case of Mosses, 502. 



Ophioglossete, 501. 



Opium, 389. 



Opposite (leaves, &c.) : opposed to alter- 

 nate, that is, placed over against 

 each other, 78,97, 133, 141. A 

 stamen, &c. is said to be opposite 

 a petal, when it stands before it 

 (248), as in fig. 435 and 670. 



Oppositi/olious : opposite a leaf, as the 

 tendrils of Vitis, fig. 767, and the 

 peduncles of Phytolacca, fig. 1086. 



Orange, 401. 



Orbicular : circular in outline. 



Orchidaceaa, 488. 



Orders, 359. 



Ordinal : relating to orders. 



Organic constituents, 179, 180. 



Organization, 17. 



Organography, 14, 60. 



Organogeny : the development oT- for- 

 mation of organs, 268. 



Organs^ 18. 



Organs of Reproduction, 70. 



Organs of Vegetation, 68, 70, 204. 



Orobanchacese, 446. 



Orris-root, 491. 



OrthopUceous (embryo) : with incum- 

 bent and conduplicate cotyledons, 

 as in Mustard. 



Orthdlropous, or orthdtropal ovale ; 298, 

 fig. 526. The term when applied 

 to the embryo is used as the con- 

 trary of antitropous, i. e. having 

 the radicle next the hilum, as in 

 an anatropous seed. 



Osage Orange, 475. 



Osmundaceae, or Osmimdinere, 501. 



Osseous : of the texture of bone. 



Ouarl Poison, 434. 



Oval: broadly elliptical ; 157, fig. 229. 



O'vary : the ovule-bearing portion of a 

 , pistil, 223, 287. 



Ooate : egg-shaped, or like the longitu- 

 dinal section of an egg, fig. 241. 



Omid : a, solid ovate or oval. 



Ovulate, ovuled, or ovuliferous : bear- 

 , ing ovules. 

 Ovule : an unimpregnatcd seed or body 



destined to become a seed, 223, 



297. 

 Oxalidacese, 404. 



Palate : an inward projection of the 

 lower lip of a personate corolla ; 

 278, fig. 459, 460. 



Pdlea, or paid: a chaff; one of the 

 bracts on the receptacle of Com- 

 posita!, 215, 435 ; one of the inner 

 bracts or glumes of Grasses, 497. 



Paleaceous : chaff-like, or bearing chaff. 



Pate'ola : diminutive of palea; one of 

 the minute innermost scales of the 

 flower of' Grasses. See Squa- 

 mella. 



Palmoe (Palms), 484. 



Palmate : lobed or divided so that the 

 sinuses all point to the apex of the 

 petiole, either moderately, as in a 

 Maple-leaf, or so as to make the 

 leaf compound, as in Horsechest- 

 n ut, when it is the same as Digitate ; 

 161, 163,164. 



Palmatelu lobed, cleft, parted, &c., 161. 



Palmateh/ 2 - plurifoliolate, 164. 



Palmatelij veined, 156. 



Pahndtijid : palmatcly cleft ; fig. 265. 



Pahndtiseot : palmately divided; fig. 

 267. 



Paludose, palustrine .-inhabiting marshes. 



Pandanaceae, 485. 



Pdndurate, or pandiiriform ; same as 

 fiddle-shaped. 



Panicle : a raceme, branched irregular- 

 ly; 216, fig. 326. 



Panicled, or paniculate: arranged in a 

 panicle. 



papaveraceie, 388. 



Papaw, 383, 422. 



Papayace£e, 422. 



Papery : of the consistence of letter- 

 paper. 



Papilionacese, 413. 



Papilionaceous : butterfly-like, 253. 



Papillose, or pdpillate: bearing small, 

 soft projections (papillse, nipples 

 or pimples). 



Pappose, or pappiferous : bearing a 



Pappus (thistle-down), 260, 314, 435. 



Papyraceous : papery. 



Papyrus, 496. 



Paracorolla : an appendage or duplicate 

 of a corolla, such as was once 

 called a nectary. 



Parallel-veined -6^ nerved, 154. 



Pardphysis : jointed thread-like bodies 

 accompanying the pistillidia of 

 Mosses. 



