332 



GLOSSARY. 



quin cun'^ial, having the leaves of a pentam- 

 erous calyr or corolla so imbricated that 

 two are exterior, two interior, and the fifth 

 has one edge exterior and one interior. 



quin'tu pie, five-fold. 



R. 



race, a variety of stich fixed character that 



it may be propagated by seed. 

 raceme', a flower cluster with an elongated 



axis and many one-flowered lateral ped- 

 icels. 

 rSg'e mose, groiving in the form of a raceme. 

 ra'ehis, or rha'chls, the principal axis in a 



spike, raceme, panicle, or corymb. 

 ra'dial, consisting of, or like, radii or 



rays. 

 ra'di ant, having a ray-like appearance. 

 ra'di ate, diverging from a common center. 

 rad'i o.al, belonging to or proceeding from the 



root. 

 rad'i cant, taking root on or above the ground; 



rooting from the stem. 

 rad'i cle, the rudimentary stem of a plant 



which supports the cotyledons in the seed, 



and from ivhich the root is developed 



downward ; a rootlet. 

 ra'mal, pertaining, to a branch. 

 ram en ta'ceous, beset with thin brownish 



scales (ramenta), as the scales of many 



ferns. 

 ram'i fi ca'tion, process of branching. 

 raiii'u lose, having many small brunches. 

 ra'phe, the continuation of the seed stalk 



along the side of an anatropous ovule 



or seed, forming a ridge or seam. 

 rays, radiating branches of an umbel. 

 re gep'ta cle, the apex of the flower stalk, 



from, which the organs of the flower groiv, 



or into ivhich they are inserted. 

 rec^ti nerved, having the nerves or veins 



straight. 

 re cQrved', curved in an oppo.iite direction ; 



bent back. 

 re du'pli cate, ra/m/e, icith the margins 



curved ontirardly, — said of the cestiva- 



tion of certain flowers. 

 re flexed', bent backward excessively. 

 re fract'ed, bent backicard angularly, as if 



half-broken. 

 reg'ma, a dry fruit consisting of three or 



more cells, each of ivhich at length breaks 



open at the inner angle. 

 reg'u lar, having all the parts of the same 



kind alike in size and shape. 

 ren'i form, kidney-shaped. 

 repand', having a slightly undulating 



margin. 

 re'pent, prostrate and rooting. 

 re'plum, the framework of some pods {as of 



the Prickly Poppy and Cress), persistent 



after the valves fall aicay. 



rep'tant, repent; creeping. 



res pi ra'tion, breathing ; the absorption by 

 plants of oxygen, the oxidation of assimi- 

 lated products, and the release of carbon 

 dioxide and watery vapor. 



resu'pinate, inverted; appearing to be up- 

 side down or reversed. 



re tic'u late, netted. 



ret'i nerved, having reticulate veins. 



re'tro flexed, bent or turned abruptly back- 

 ward. 



re tr6rse', bent backward or downward. 



re tuse', having the end rounded and slightly 

 indented. 



rev'o lute, rolled backward or downward. 



rha'chis, see rachis. 



rha'phe, the continuation of the seed stalk 

 along the side of an anatropous ovule or 

 seed, forming a ridge or seam. 



rhaph'i des, minute, transparent, often 

 needle-shaped crystals, found in the tis- 

 sues of plants. 



rhi zan'thous, producing flowers from a 

 rootstock, or apparently from a root. 



rhizo'ma, or rhizome', a rootstock; a stem 

 which has the appearance of a root. 



rhom'bic, .shaped like a rhomb. 



rhomboid'a], shaped like a rhomboid. 



ribs, the chief reins of a leaf; ridges. 



ri mose', full of fissures or chinks. 



rtn'gent, gaping, like an open mouth. 



rings of wood, circular rings which appear 

 in a cross section of an exogenous stem. 



ri pa'ri ous, growing along river banks. 



root, the desceiiding axis of a plant ; the part 

 of a plant that groivs doivnward into the 

 ground. 



root' cap, a mass of dead cells which cover 

 and protect the growing cells at the end, 

 of a root. 



root'lets, .<iingle roofs or roof liranches. 



rdot'stoek, a perennial underground stem, 

 producing leafy stems or fiower-sfpms 

 from year to year. 



rosa'ceous, like a ro.se in shaj)P or 

 appearance. 



ros'tellate, having a ro.^teUum, or small 

 beak; terminating in a beak. 



rostel'lum, a small beak-like extension of 

 some part. 



ros'trate, beaked; having a process resem- 

 bling the beak of a bird. 



ro'su late, arranged in little rose-like clus- 

 ters, — said of leaves and bracts. 



ro'tate, having the parts spreading out tike 

 a wheel ; ivheel-shaped. 



ro ta'tion, circulation of fluids in the cell. 



ro'tund, round or roundish in outline. 



rii'bicund, red; ruddy. 



ru'di ment, an imperfect organ or part ; a 

 minute part. 



ru fes'cent, reddish ; tinged with red. 



rugose', irrinkled; having the veinlets sunken 

 and the spaces between them elevated. 



