GLOSSARY 



Abortion, (li. dborior, abortus ; ab, orior, to rise, 

 to grow; ab reverses the meaning.) Failure 

 to complete development. 



Accrescent. (L. accreseo, 1 am added, joined to ; 

 ad, in addition; cresco, to grow.) Parts 

 growing together externally. 



Acerose. (L. acer, sharp; ae, sharp.) Sharp- 

 pointed or needle-like leaves. (Plate I., 

 Pig. A.) 



Achene. (Gr. a, not; chaino, to open.) A dry 

 fruit which does not open. 



Acicular. (L. acicula, a small pin ; acnn, a needle; 

 root af, sharp.) Needle-shaped leaves. (Plate 

 L. Fig. A.) 



Acuminate. (L. acuminatus, p.p. of acumino; 

 aevo, I sharpen.) Apex of leaf gradually 

 pointed. (Plate I., Fig. E.) 



Acute. (L. acutus, p.p. of wiio, I sharpen.) 

 Pointed at the apex. (Plate VII., Fig. A.) 



Adnate. (L. adnatus, p.p. of adnascor ; ad, to ; 

 nascor, to be born.) Growing near to, as 

 when the filament grows up against the 

 anther. 



Adpressed, Appressed. (L. ad, to; pressus, -a, -um, 

 compressed, close, — premo, I press.) Closely 

 pressed to the surface. 



£!cidiospore. (Gr. aikia, injury ; spora, a seed.) 

 A spore formed by abstriction in an secidium. 



.Scidium. (Gr. aikia, injury.) The cup-shaped 

 organ in which the spores are produced. 



Alternate. (L. alternatus, p.p. of allerno ; alter, 

 another.) Placed one above the other on 

 opposite sides of the stem. (Plate VII.) 



Amentum or Catkin. (L. amentum, a strap or 

 thong.) A deciduous spike bearing uni- 

 sexual flowers. (Plate II., Figs. D 1 , D 2 .) 



Amplexicaul. (L. amplexus, p.p. of amplector ; 

 ambi, around, plecto, I twine ; caulis, a stem.) 

 Leaves encircling the stem at their base. 



Andro-dioecious. (Gr. aner, andros, a man, a 

 male ; di, twice ; oikos, a house.) Having 

 perfect flowers in one individual, and stami- 

 nate only in another. 



Androecium. (Gr. andreios, male ; oikos, a house.) 

 The outermost whorl of the reproductive 

 organs of the flower, consisting of one or 

 more stamens. 



Anemophilous. (Gr. amnios, wind; philos, loved.) 

 Fertilised by the wind. 



Anthers. (Gr. an/heros, flowery, blooming; anthos, 

 a flower.) The hollow pollen box at the 

 summit of the stamen ; usually divided by 

 the filament into two halves or lobes. 



Apetalous. Without petals. 



Apiculate. (L. apex, -ids, a point.) Terminated 

 in a little point. 



Apocarpous. (Gr. apo, separate ; karpos, a fruit.) 

 Pistils having separate carpels. (Plate 

 XVIII.) 



Appendiculate. (L. appendicula, dim. of appen- 

 dix ; ad, to ; pendere, to hang.) With appen- 

 dages at the throat. 



Approximate. (L. approximatns, p.p. of ap- 

 proximo ; ad, to; prorimus, nearest.) Near 

 together. 



Arborescent. (L. aborescens, pr.p. of arboreseo, to 

 grow to a tree). Having a tendency to 

 become a tree. 



Aril. (L.L. arilli, dried grapes ; L. areo, I 

 am dry.) An extra covering of the fertilised 

 ovule or seed, usually fleshy and coloured, 

 often falling off when dry. 



Ascus. (Gr. askos, a bag, a wine-skin.) A 

 large cell or spore-case, within which spores, 

 usually eight in number, are developed. 



Astringent. (L. asiringo ; at/, to ; stringo, I 

 close.) Rough to the taste, causing contrac- 

 tion. 



Attenuate. (L. attenuatus, p.p. of attenuo ; ad, 

 to; tenuis, thin.) Tapering off. 



Awns. (M.E. axon; aijun ; Ice. iign, chaff, husk ; 

 Ger. aline, beard of corn or grass; ac, sharp.) 

 Small bristle-like appendages. 



Axil. (L. axilla, the armpit.) The angle be- 

 tween leaf oi' bract and the axis bearing it. 



Axillary. (L. axilla, the armpit.) Growing in 



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