APPENDIX. 



393 



Pinnate, A leaf is pinnate when the 

 leaflets are arranged in two rows on 

 the side of a common petiole ; as in 

 the rose. 



Pinic, Relating to pine. 



Pistil, The central organ of most 

 flowers, consisting of the germ, style 

 and stigma. 



Pistillate, Having pistils but no sta- 

 mens. 



Pith, The spongy substance in the 

 centre of the roots and stems of most 

 plants. 



Plaited, Folded like a fan. 



Plane, Flat with an even surface. 



Plumula or Plume, The ascending 

 part of a plant at its first germination. 



Pod, A dry seed vessel, not pulpy, 

 most commonly applied to legumes 

 and siliques. 



Poles, Shoots from coppice stools on 

 the stems of young trees of various 

 lengths, according to the purpose for 

 which they are wanted ; those for 

 hops should be from ten to eighteen 

 feet long. 



Pollen, The dust which is contained 

 within the anthers. 



Polygamous, Having some flowers 

 which are perfect, and others with 

 stamens only or pistils only. 



Pome, A pulpy fruit, containing a 

 capsule ; as the apple. 



Porous, Full of holes. 



Prickle, Differs from the thorn in 

 beinc fixed to the bark : the thorn is 



_ 



fixed to the wood. 

 Prinvs, The ancient name of an oak 



which inhabited moist places ; the 



Holm Oak. 

 Prismatic, Having several parallel flat 



sides. 

 Process, A projecting part. 

 Prop, Tendrils and other climbers. 

 Pscudo, when prefixed to a word it 



implies obsolete or false. 

 Pubescent, Hairy ; downy or woolly. 

 Pulmonary, Relating to the lungs ; 



affecting the lungs. 

 Pulp, The juicy cellular substance of 



berries and other fruits. 

 Pungent, Sharp ; acrid ; piercing. 

 Purgative, See Cathartic. 



Radiate, The ligulate florets around 

 the margin of a compound flower. 



Radicula:, The ramifications, or smaller 

 fibres of the root. 



Radix, A root. 



Radical, Growing from the root. 



Radicle, The part of the corculum 



50 



which afterwards forms the root ; 

 also the minute fibres of a root. 



Ramify, To shoot into branches. 



Ray, The outer margin of a compound 

 flower. 



Receptacle, The end of a flower stalk; 

 the base to which the different 

 parts of fructifications are usually 

 attached. 



Reclined, Bending over with the end 

 inclining towards the ground. 



Refrigerant, Cooling ; allaying the 

 heat. 



Resin, An inflammable substance, hard 

 when cool, but viscid when heated, 

 exuding in a fluid state from certain 

 kinds of trees, as pine, either spon- 

 taneously or by incision. 



Rhomboid, Diamond-form. 



Rib, A nerve-like support to a leaf. 



Rigid, Stiff, not pliable. 



Ring, The band around the capsules 

 of ferns. 



Root, The descending part of a vege- 

 table. 



Rootlet, A fibre of a root ; a little root . 



Rosaceous, A corolla formed of round- 

 ish spreading petals without claws, 

 or with very short ones. 



Rubefacient, In "medicine a substance 

 or external application which excites 

 redness of the skin. 



Rubra, Red. 



Rugose, Wrinkled. 



Rupcstris, Growing among rocks. 



Saccharine, Pertaining to sugar or 

 having the qualities of sugar. 



Sap, The watery fluid contained in 

 thetubesandlittle cells ofvegetables. 



Sapling, A young tree under six 

 inches diameter at four feet from 

 the ground ; in some places it is 

 used to denote a young tree raised 

 immediately from the seed, which is 

 them termed a maiden tree ; in 

 others it is considered a young tree, 

 the produce of a coppice stool, old 

 root, or stub, and, by a few, a long 

 young tree, the produce of either. 



Savanna, An extensive plain or mead- 

 ow. 



Scions, Shoots proceeding laterally 

 from the roots or bulbs of a root. 



Secernent, That which promotes se- 

 cretion. 



Segment, A part or principal division 

 of a leaf, calyx or corolla. 



Seminal, Pertaining to seed, or to the 

 elements of production. 



Serrate, Notched like the teeth of a saw. 



