428 



GLOSSARY. 



Pruinose ; 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 Finnatisect. 



Puberulmt ; covered with a minute, short 

 and fine pubescence. 



Pubescence. A general term for the hairy 

 covering of plants. 



Pubescent; clothed with hairs, — especially 

 with short weak hairs. 



Pulp. A soft, fleshy or juicy mass. 



Pulverulent ; dusty ; composed of, or cov- 

 ered with, a fine powder. 



Punctate; appearing as if pricked full of 

 small holes, or covered with indented 

 points. 



Puncticulate; having very minute punc- 

 tures, or indented points. 



Pungent; sharp-pointed, prickly at apex; 

 also acrid. 



Pyramidal; tapering upwards; nsually 



applied to 4-sided solids Avhich diminish 



to the apex. 

 Pyrifbrm; shaped like a pear; largest at 



the upper end. 

 / Quadrangular ; four-angled. 



Quadrifarious ; in 4 rows, or directions ; 



facing or pointing 4 ways. 

 Quddrifid ; 4 cleft. 



Quaternate; 4 together ; arranged in fours. 



Quinate ; 5 together ; arranged in fives. 



Bace of plants. A fixed and peculiar form 

 or modification,— produced by the cross- 

 ing or blending of distinct varieties ; or 

 sometimes, perhaps, accidental forms 

 rendered permanent by culture, or other 

 influences. 



Baceme. A mode of flowering, in which 

 the common peduncle is elongated, 

 with the flowers on short lateral simple 

 pedicels, 



Pacemose; having the flowers in racemes. 



Eachis or Ehachis. The common pedun- 

 cles, or elongated receptacle, on which 

 florets are collected in a spike ; also the 

 midrib ofa pinnatisect frond. 



Pddiate; having rays (i. e. spreading ligu- 

 late florets) at the circumference ; as the 

 heads of many Compot^ita: 



Eadiate-vei)ied; where the veins of a leaf 

 diverge from a common centre, or point, 

 at the summit of the petiole. 



Eadiatiform; a term applied to heads of 

 compound flowers in which all the florets 

 are ligulate, and directed tow^ards the 

 circumference. 



Eadical; belonging to, or growing imme- 

 diately from, the root. 



Eadicafing ; sending out roots, or striking 

 root at the norles. 



Eddicle. A little root ; the slender fibrous 

 branch of a root. 



Eameal\ pertaining or belonging to the 

 branches. 



Eamificaiion. The branching or division 

 of an organ into several parts. 



Eaonose; branching. 



RanJc. A row, or arrangement in a line. 



Raphe. The line, or little ridge, on one 

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

 and seeds, — formed by the adhesion of a 

 portion of the funiculus. 



Ratoon (Span. Retono). a sprout from the 

 root of a plant which has been cut oflF 

 (chiefly used in reference to the Sugar- 

 cane). 



Eays. The spreading ligulate florets 

 round the disk of a compound flower ; 

 also, the footstalks, and enlarged mar- 

 ginal flowers, of an umbel. 



Receptacle. The apex of the peduncle 

 (much dilated in the Composite ), on 

 which the parts of a flower (or entire 

 florets) are inserted; the seat of the 

 fruit, or of seeds and their equivalents. 



Eecurved: curved backwards. 



Eeflexed; bent or doubled backwards. 



Eegular; having the parts uniform and 

 equal among themselves, — as the lobes or 

 petals of a corolla. 



Eemoie ; seated or growing at an unusual 

 distance. 



Reniforin; kidney-shaped. 



Eepdnd ; having the margin slightly in- 

 dented with shallow sinuses. 



Eeplicate; folded back on itself. 



Eeplum. A name given to pa''ietal pla- 

 centae when separated from the valves; 

 also, the persistent border of a fallen le- 

 gume. 



Resupinatt; turned upside down. 



Eeticulate ; netted ; liaving veins or 

 nerves crossing each other, or branching 

 and reiiniting, like network. 



Eetrorse, or retrorsely ; pointing back- 

 wards or downwards. 



Eetuse; having a shallow sinus at the end. 



Eevolute ; rolled backwards, or outwards. 



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

 terraneous stem. 



Ehombic, or rhomboid ; rhomb-shaped; 

 having four sides, with unequal an- 

 gles. 



Eihbed ; having ribs, or longitudinal 

 parallel ridges. 



Ribs. Parallel ridges, or nerves, extending 

 from the base to, or towards, the apex. 



Eigid ; stiff", inflexible, or not pliable, 



Eingent : gaping, with an open throat. 



Eoot-stock. See Ehizoma. 



Rostrate ; beaked ; having a process re- 

 sembling the beak of a bird. 



Edsulate; in a rosette; arranged in circular 

 series, like the petals of a double rose. 



Edtate corolla. Wheel-shaped ; monopet- 

 alous (or gamopetalous ) and spreading 

 almost flat, with a very short tube. 



Eough; covered with dots, points, or short 

 hairs, M-hich are harsh to the touch. 



Eound : circular, or globular; not angular. 

 See globose, orbictdar, and terete. 



Eudiment. An imperfectly developed 

 organ. 



