GLOSSARY 



ol7 



A^nnal. Accordiiif^ to rule or btamlanl ; not 



vaiying from tlic type. 

 Numerous. IiKlcliiiite in number. 

 Nut. A hard imleliiscent one-seeded fruit, 



usually resulting from a compound ovary. 

 Nutlet. A small nut ; also a]ii>iied to tlie hard 



seedlike divisions of the fruit of tlie lialiiatie, 



Verbena, etc. 



Oh-. A Latin prefix usually signifying inver- 

 sion, or tlie reverse of the primary word. 



Ohcomprcsscd. Flattened contrary to the direc- 

 tion of the sides, dorsally, instead of laterally. 



Ohconical. Re.senibling an inveited cone. 



Obcordatc. Inverted cordate, the lobes directed 

 outward. 



Ob/aiiceolate. Inverted lanceolate, with the 

 broadest part toward the ape.x. 



Oblique. Turned to one side ; unequally sided. 



Oblong. Considerably longer than broad and 

 with nearly parallel sides. 



Obovate. Inverted ovate, the broader part to- 

 ward the apex. 



Obovoid. Inverted egg-shaped, the broader part 

 above. 



Obtuse. Blunt or rounded at the end. 



OhvcrseJy. In a reverse manner. 



Oc/iracrous. Ochre-color, light yellow with a 

 tinge of brown. 



Ochroleucous. Yellowish white. 



Ocreate, or Ochreatc. Furnished with an ocrea, 

 a tubular stipule sheathing the stem. 



-Old (-aides). A Greek termination signifying 

 resemblance. 



Opaque. Dull, not shining. 



Opcrculate. Provided with an operculum. 



Operculum. A lid, separating by a transverse 

 line of dehiscence. 



Opposite. Standing against or facing each other, 

 as a stamen against a petal, or two leaves at 

 the same node. 



Orbiculai: Circular or nearly so. 



Order. A principal group next above the genus 

 in rank, and including related genera more or 

 less distinguished from others by certain com- 

 mon characters. 



Ordinal. Relating to orders. 



Organ. Any part of a plant concerned in its 

 growth and welfare, having a special object 

 to serve and more or less essential. 



Orthotropous. Applied to an ovule or seed that 

 is straight and attached immediately by its 

 base. 



Osseous. Bony. 



Ooal. Broadly elliptical. 



Ovary. The dilated portion of the pistil, bearing 

 and containing the ovules. 



Ovate. Shaped like the longitudinal outline of 

 an egg, the broader portion toward the base ; 

 also egg-shaped and applied to solids. 



Ovoid. Egg-shaped. 



Ovule. A rudimentai-y organ which after im- 

 pregnation becomes a seed. 



Ovulijerous. Bearing ovules. 



Palate. A protrusion of the lip of a bilabiate 

 corolla. 



Paha. A ehalf or chairy bract ; in gras.ses, the 

 two inner bracts uf tlie flower. 



Paleaceous. Clialfy or fiiriiislied witli flialF. 



Paid. The same as palca, used esiM-cially of 

 grasses. 



Palmate. Of leaves, compouml with tlic lealleta 

 radiating from the summit of tlie pf-tiide. 



Palmalcli/. In a iiaimate manner. 



Palmatijid. Palniately cleft or divided. 



Panduratc. See Fiddle-sluipcd. 



Panicle. A loose irregularly branclied inflores- 

 cence. 



Paniclcd, Paniculate. After the manner of a 

 panicle ; bearing a panicle. 



Pa/pilionaccous. Butterfly-like ; applied to the 

 peculiar irregular flower common in the Legu- 

 minosae. 



Papillose, Papillate. Bearing minute tliick 

 nil)ple-shaped or somewhat elongated pro- 

 jections. 



Pappus. In Compositie, the hairs, biisth'S, or 

 scales crowning the akene and taking tlic 

 place of a calyx. 



Papyraceous. Having the texture of pajK^r. 



Paraphyscs. In mosses, the minute tilifomi 

 bodies which accompany the male and female 

 organs. 



Parasitic. Growing upon and deriving nourish- 

 ment from another plant. 



Parenchyma. Tlie soft cellular tissue of plants, 

 as i\w green fleshy part of a leaf. 



Pccrcnchymxitous. Like or formed of parenchy- 

 ma ; also applied to cells narrower at the ends 

 and overlapping each other. 



Parietal. Relating to or situate upon the walls 

 of a cavity. 



Paripiinnatc. Evenl}' or abruptly pinnate, the 

 terminal odd leaflet wanting. 



Parted. Cleft nearly to the l>ase. 



Partial. Secondary ivs distinguished from the 

 principal and primary. 



Partition. An inner wall or dissepiment. 



Pa.tcUifor)n. Trencher-shajied, with the margin 

 less raised than in Scutelliform. 



Patent. Widely sjtreading. 



Patulous. Sliglitly or moderately spreading. 



Paucijlorous. Few- flowered. 



Pear-shaped. Obovoid or ohconical with a some- 

 what tapering base and usually oblique or 

 un.symmetrical. 



Pectinate. Comb-like : cleft with narrow closely- 

 set segments. 



Pcdate. Pahnately divided or parted with the 

 lateral divisions again 2-cleft. 



Pedicel. Tlie footstalk or support of a flower. 



Pedicellate. Borne on a pedicel. 



Peduncle. A general or i)rimary flower-stalk. 



Pedunculate. Furnished witli a peduncle. 



Peltate. Shield-shai)ed ; flat and attached to its 

 support by its lower surface. 



Pendent. Hanging (Ui its stalk or sujiport. 



Pendulous. Hanging nearly inverti'tl from its 

 supiKirt ; of ovules, more or less drooping, as 

 distinct from suspended. 



Penicillnte. Resembling a brush of fine Iiairs. 



Pepo. A cui-urbita<eous fruit. 



Perennial. Persistent a .series of years. 



