214 GLOSSARY AND INDEX. 



Ooulate, with eye-shaped marking. 



Officinal, used in medicine, therefore kept in the stLope. 



Offset, short branches next the ground which take root, 40. 



Oides, termination, from the Greek, to denote likeness; so Dicmthoidei, Pink-like. 



Oleraceous, esculent, as a pot-herb. 



Ollgos, Greek for few ; thus Oligamthous, few-flowered, &c. 



Olivaceous, olive-green. 



Oophoridium, a name for spore-case containing macrospores. 



Opaque, applied to a surface, means dull, not shining. 



Operculate, furnished with a lid {Operculum), as the spore-case of Mosses, 163. 



Opposite, said of leaves and branches when on opposite sides of the stem from each 



other (i. e. in pairs), 29, 68. Stamens are opposite the petals, &o., when they 



stand before them. 

 Oppositi/'olius, situated opposite a leaf. 

 Orbicular, Orbiculate, circular in outline, or nearly so, 52. 

 Order, group below class, 178. Ordinal names, 180. 

 Organ, any member of the plant, as a leaf, a stamen, &c. 

 Organography, study of organs, 9. Organogenesis, that of the development of 



organs. 

 Orgyalis, of the height of a man. 

 Orthos, Greek for straight; thus, Orthocarpous, with straight fruit; Orthostichous, 



straight-ranked. 

 Orthoiropous (ovule or seed), 111. 

 Osseous, of a bony texture. 



Outgrowths, growths from the surface of a leaf, petal, &c. 

 Oval, broadly elliptical, 62. 



Ovary, that part of the pistil containing the ovules or future seeds, 14, 80, 105. 

 Ovate, shaped like an egg, with the broader end downwards; or, in plain surfaces, 



such as leaves, like the section of an egg lengthwise, 52. 

 Ovoid, ovate or oval in a solid form. 



Ovule, the body which is destined to become a seed, 14, 80, 105, 110. 

 Ovuliferous, ovule-bearing. 



Palate, a projection of the lower lip of a labiate corolla into the throat, as in Snap- 

 dragon, &c. 



Palea (plural pnZeiB), chaff; the inner husks of Grasses; the. chaff or bracts on the 

 receptacle of many Compositse, as Coreopsis, and Sunflower. 



Paleaceous, furnished with chaff, or chaffy in texture. 



Paleolate, having Paleoke or paleae of a second order, or narrow palese. 



Palet, English terra for palea. 



Palmate, when leaflets or the divisions of a leaf all spread from the apex of the 

 petiole, like the hand with the outspread fingers, 57, 68. 



PainuUely (veined, lobed, &c.), in a palmate manner, 51, 56. 



Pahnatifid, -lobed, -sect, palmately cleft, or lobed, or divideld. 



Paludose, inhabiting marshes. Palustrine, same. 



Pandurijorm, or Pandurate, fiddle-shaped (which see). 



Panicle, an open and branched cluster, 81. 



Panicled, Panioulate, arranged in panicles, or like a panicle. 



Pannose, covered with a felt of woolly hairs. 



Papery, of about the consistence of letter-paper. 



Papilionaceous, butterfly-shaped ; applied to such a corolla as that of the Pea, 91. 



Papilla (plural papillcB), little nipple-shaped protuberances. 



Papillate, Papillose, covered with papillep. 



Pappus, thistle-down. The down crowning the achcnium of the Thistle, Groundsel, 

 &c., and whatever in Composite answers to calyx, whether hairs, teeth, or 

 scales, 121. 



Papyraceous, like parchment in texture. 



ParaUel-veined or nerved (leaves), 60. 



