BOTANICAL TERMS. 



31 



O 



Obcordate, Obcordalum ; an obcordate or inversely heart- 

 shaped leaf : having the point of the heart next to the 

 stem or branch. 



Obovate Obovatum; an obovate or inversely egg-shaped leaf : 

 having the narrow end downwards, or next to the branch 

 or stem. 



Obtusus, blunt, terminating in the segment of a circle. 



Octandria, from VK-TU>, eight ; and avijp, a husband : the 

 eighth class in Linneus's Sexual System, consisting of 

 plants with hermaphrodite flowers, which are furnished 

 with eight stamina, or male organs of generation. 



Octofidus, eight-clefted. 



Octopartitus, having eight divisions. 



Oriilus, an eye ; a species of bud. 



Order, smell, which is too variable and indeterminate to be 

 employed in the discrimination of plants. 



Open, (patulus) standing open, or soreading wide. 



Operculatum, covered with a lid, 



Orbiculatus, round and flat. 



Orders, subdivisions of classes. 



Ordo, an order ; the first subdivision of a class, in the Sexual 

 method, which parcelling out the genera of any class into 

 several distinct lots, gives perspicuity to the method, 

 and facilitates its distinctions. 



Ore, rim of the cup. See Fauces. 



Osseous, hard as bone. 



Oval, (ovale) leaf ; as the leaves of the box. 



Ovarium, the ovary ; the germen, or seed-bud, containing 

 the rudiments of the future seed. 



Pagina, surface of a leaf. 



Pairs. See Juga. 



Palatum, the palate of the flower ; the name applied to any 

 prominence or gibbosity in the jaws of the corolla. 



Palea, chaff. 



Palm. See Dodrans. 



Palmate, hand-shaped. 



Palmte, palm-trees ; under this name Linnetis has arranged 

 several genera, which, although admissible into separate 

 classes of his system, he has chosen rather, on account 

 of their singular structure, to place apart in an appendix 

 to his work. 



Pandnriformis, fiddle-shaped. 



Panicula, or panicle, a mode of flowering, in which the 

 fructifications are dispersed upon foot stalks variously 

 subdivided. It is, in fact, a sort of branching, or diffused 

 spike, composed of a number of small spikes, that are 

 attached along a common foot-stalk. 



Papilionaceous, butterfly-shaped. 



Papillosus, pimpled. 



Pappus, down; a sort of feathers or hairy crown, with 

 which many seeds, particularly those of compound flow- 

 ers, are furnished, for the purpose of dissemination. 



Parallelus, parallel. 



Parasitical, (parasiticus) vegetables not taking root in the 

 earth, but growing upon other vegetables. 



Partial, (partialis) expressive of a part, not of the whole. 



Partition, (dissepimentuin) the substance dividing seed- 

 vessels into different cells. 



Parlitus, divided. 



Patens, expanding 



Patulus, open. 



Pectinatum, (pectinate) a comb-like leaf. 



Pedatum, bird-footed. 



Pedicellus, a partial flower-stalk ; the proper stalk of any 

 single flower in an aggregate or head of flowers, 



Pedicle. See Pedunculus. 



Pedunculus, the foot-stalk or fruit-stalk of a flower, or heao 

 of flowers. 



Pelta, a short buckler or target ; the name of the flower, 

 or flat fructification, of the genus lichen, or liver-wort. 



Peltatum, target-shaped leaf. 



Pencil-shaped, (penicilliformis) like a camel-hair pencil : as 

 the summit of a millet. 



Penicilliformis, pencil-shaped. 



Pendant, hanging down. 



Pentagonous, five-cornered. 



Pentagynia, the name of one of the orders in the fifth, tenth, 

 eleventh, twelfth, and thirteenth classes, having five 

 pistils in each flower. 



Pentandria, from irevre, five ; and avijp, a husband : the 

 name of the fifth class in the Linnean system, consisting 

 of plants which have hermaphrodite flowers, with five 

 stamina or male organs. 



Pentapetala, five-petaled. 



Pentapetali, flowers having five petals. 



Pentapliyllous, five-leaved cup. 



Perennial, (perennis) continuing for several years ; at least 

 more than two. 



Perfect, (completus) a flower having both a cup and a blos- 

 som, and also one or more stamina and pistilla. 



Perforated, (perfoliatus) leaves ; when the stem seems to go 

 through the leaves. 



Perfoliatum, perforated leaf. 



Perianthium, the flower-cup, properly so called ; the most 

 common species of calix, placed immediately under the 

 flower, which is contained in it as in a cup. 



Pericarpium, the seed-vessel ; an entrail of the plant, big 

 with seeds, which it discharges when ripe. 



Permanent, (persistens) cup ; remaining till the fruit is ripe. 



Personatus, gaping, (blossom.) 



Pes, a foot ; twelve inches. 



Petaliformis, resembling a petal. 



Petals. See Petalum. 



Petalum, a petal, or coloured leaf of the flower j a single 

 part or subdivision of the Corolla, which see. 



Petiolaris, having leaf-stalks. 



Petiolus, the foot-stalk of the leaves j one of the fulcra, or 

 parts that serve for support, for protection, and for de- 

 fence. 



Phanogamous ; plants in which the parts of fructification are 

 visible and distinct. 



Pileus, a hat or bonnet ; the upper part of a mushroom co- 

 vering the fructification. 



Pili, hairs ; one of the species of pubes, or defensive wea- 

 pons, with which several plants are furnished. 



Pillar, (stipes) the little shaft or pedicle, upon which the 

 down of some seeds is placed, as in dandelion. 



Pilosus, hairy. 



Pimpled, (papillosus) beset with pimples, or hard little pro- 

 tuberances. 



Pinna, a leaflet of a winged leaf. 



Pinnatifid, wing-cleft, cut transversely. 



Pinnatus, winged leaf ; whereas alatus relates only to the 

 seed-stem, or leaf-stalk. See flatus. 



Pinnulatus, when a leaflet of a winged leaf is again subdi- 

 vided. 



Pistil, or pointal. See Pistillum. 



