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GLOSSARY. 



Pridnose ; covered with a glaucous meali 

 ness, like a plum. 



Pseudo pinnate ; falsely or imperfectly 

 pinnate, — the leaflets (or rather segments) 

 not articulated at base : See Pinnatuect. 



PuMnolent ; covered with a minute, short 

 and fine pubescence. 



Pubescence. A general term for th.e hairy 

 covering of plants. 



Pahescent; clothed with hairs, — especially 

 with short weak hairs. 



Palp. A soft, fleshy or juicy ma.\s. 



Pulverulent; dusty; composed ot, or cov- 

 ered with, a fine powder. 



Punctate; appearing as if pricked full of 

 small holes, or covered with indented 

 points. 



Punctieulate; having very minute punc- 

 tures, or indented points. 



Pungent; sharp-pointed, prickly at apex ; 

 also acrid. 



Pyramidal ; tapering npwai-ds ; nsually 



applied to 4-sidcd solids'which diminish 



to the apex. 

 Pyriform; shaped like a pear; laorgest at 



the upper end. 

 Quadrd/ngnlar ; foux-angled. 

 Quadrifarious ; in 4 rows, or dii'ections ; 



facing or pointing 4 ways. 

 Quadrifid; 4-cleft. 



Quaternate; 4 together ; arranged in fours. 



Quinate ,• 5 together; an-anged in fives. 



Pace of plants. A fixed and peculiar form 

 or modification,— produced by tlie cross- 

 ing or blending of distinct A'arieties ; or 

 sometimes, perhaps, accideatal forms 

 rendered permanent by culture, or other 

 influences. 



Uaceme. A mode of flowering, in which 

 the common peduncle- is" elongated, 

 with tlie flowers on short lateral simple 

 pedicels. 



Racemose; having the flowers in racemes. 



RacJds or Ithachis. The common pedun- 

 cles, or elongated receptacle, on wlueh 

 florets are collected in a spike; also the 

 midrib of a pinnatisect frond. 



Pddiate; having raj-s (i. e. spreading lign- 

 late florets) at the circumference ; as the 

 heads of many Composit<r. 



JtacUate-veined; where the veins of a leaf 

 diverge from a common centre, or point, 

 at the summit of the petiole. 



Radiatiform; a term applied to heads of 

 compound flowers in which all the florets 

 are ligulate, and directed towards the 

 circumference. 



Radical; belonging to, or growing imme- 

 diately from, the'root. 



Radicating; sending out roots, or striking 

 root at the nodes. 



Radicle. A little root ; the slender fibrous 

 branch of a root. 



Raiveal; pertaining or belonging to the 

 branches. 



Ramification. The branching or division 

 of an organ into several parts. 



Ramose; branching. 



Rank, A row, or arrangement in a line 



Raphe. The line, or little ridge, on oii« 

 side of auatropous (i. e., inverted) ovules 

 and seeds, — formed by the adhesion of a 

 portion of the funiculus. 



Eatoon (Span. Retono). A sprout from the 

 root of a plant which has been cut otf 

 (chiefly used in reference to the Sugar- 

 cane). 



Bays. The spreading ligulate florets 

 round the disk of a compoimd flower ; 

 also, the footstalks, and enlarged mar- 

 ginal flowers, of an umbel. 



Receptacle. The apex of the peduncle 

 (much dilated in the CoMPoeiT ] ), on 

 which the parts of a flower (or entire 

 florets) are inserted; the seat of the 

 fruit, or of seeds and their equivalents. 



Recurved; curved backwards. 



Reflexed; bent or doubled backwards. 



Re<jular; having the parts uniform and 

 equal among themselves,— as the lobes or 

 petals of a corolla. 



Remote ; seated or growing at an nuusual 

 distance. 



Reniform; kidney-shaped. 



Repdnd ; having the margin Elightly in- 

 dented with shallow sinuses. 



Replicate; folded back on itself. 



Replmn. A name given to parietal pla- 

 centic when separated from the valves; 

 also, the persistent border of a fallen le- 

 gume. 



Resupinate; turned upside down. 



Reticidate ; netted ; having veins or 

 nerves crossing each other, or braiiching 

 and reuniting, like network. 



Retrorse, or retrorsely ; pointing back- 

 vrards or downwards. 



Retiise; having a shallow sinus at (he end. 



RcDohite ; rolled backwards, or ontwai d». 



RJiiidma. A root-stock, — or root-like sub- 

 terraneous stem. 



Rhombic, or vhomTjoid ; rhomb-shnped ; 

 liaving four sides, with unequal aif- 

 gles. 



Ribbed ; having ribs, or longitudinal 

 parallel riflges. 



Ribs. Parallel ridges, or nerves, exiending 

 from the base to, or towards, the apex. 



Rigid; stitf, inflexible, or not pliable, 



Ringent: gaping, with an open throat. 



Root-stock. See Rhizoma. 



Rostrate; beaked; having a process re- 

 sembling the beak of a bird. 



Rbsulate: in a rosette; arranged in circular 

 series, like the petals of a double rose. - 



Rotate corolla. AVheel-shaped ; monopet- 

 alous (or gamopetalous) and spreading 

 almost flat, with a very short tube. 



Rough; covered with dots, points, or short 

 hairs, which are harsh to the touch. 



Round ; circular, or globular; not angular. 

 See glodose, orbicular, and terete. 



Rudim.ent. An iiaperfcctly developed 

 organ. 



