GLOSSARY. 



A- (or an-), a prefix in words of Greek deriva- 

 tion, the a privative, having a negative signifi- 

 cation and denoting the absence of some or- 

 gan or quality. 



Abnormal. Contrary to rule ; deviating from 

 the normal or usual. 



Abortion. The suppression or imperfect develop- 

 ment of any part. 



Abortive. Imperfectly developed. 



Abrupt, abruptly. Indicating a sudden transi- 

 tion or termination ; abruptly pinnate, pin- 

 nate without a terminal leartet. 



Acaulesceni. Stemless or apparently so. 



Accumbent cotyledons. Having an edge against 

 or towards the radicle. 



Acerose. Needle-shaped, as a pine-leaf. 



Achcnium. See Akcne. 



Achlamydeous. Without perianth. 



Acicular. Needle- or bristle-shaped ; more 

 slender than acerose. 



Acinaciform. Scymetar-shaped. 



Acotyledon. A plant whose embryo is without 

 cotyledons, as Cuscuta; applied also to cryp- 

 togams as plants without seed or embryo. 



Acrogenous. Growing by terminal buds. 



Aculeate. Having sharp points or prickles. 



Acuminate. Tapering to a point. 



Acute. Sharp at the end, or at the edge or 

 margin. 



Adnate. United ; used properly of the surfaces 

 of different organs, as of calyx and ovary. 



Adventive. Accidentally present. 



Estivation. The arrangement of leaves or of 

 the parts of the perianth in the bud. 



Aggregated. Crowded together, but not cohe- 

 rent. 



Akene ; Achenium. A dry hard indehiscent 

 1-celled and 1-seeded seed-like fruit. 



Ala, pi. Alee. A wing, or sometimes an axil ; 

 in mosses, applied to the basal lobes or auri- 

 cles of the leaves. 



Alar. In the axils or forks ; also belonging to 

 the wings or auricles. 



Albumen. The nutritive material of the seed, 

 within its coats and exterior to the embryo. 



Albuminous. Provided with albumen. 



Alliaceous. Applied to the peculiar smell and 

 taste of garlic and onions. 



Alpine. Peculiar to high altitudes, above the 

 line of tree-growth. 



Alternate. Following one another at intervals, 

 as leaves upon a stem ; following by turns ; 

 not opposite ; intermediate. 



Alveolate. Honey-combed ; deeply and closely 

 pitted. 



Ament. A unisexual spike with scaly bracts, 

 as in the willow. 



Amorphous. Without definite form ; of abnor- 

 mal form. 



Amphigastria. In Hepaticte, small stipule-like 

 accessory leaves on the under side of the stem. 



Amphitropous. Applied to an inverted ovule or 

 seed with the hilum lateral. 



Arnplexicaul. Of leaves, clasping the stem. 



Anatropous. Of an inverted ovule or seed with 

 the rhaphe extending its whole length. 



Ancipital. Two-edged. 



Androgynous. Having both male and female 

 flowers. 



Angiospermous. Bearing seeds in a closed peri- 

 carp. 



Annual. Of only one year's duration. 



Annular. Having the form of a ring. 



Annulus. Ill mosses, the ring of cells between 

 the operculum and the orifice of the capsule. 



Anterior. Equivalent to inferior or lower, in 

 the sense of away from the axis and toward 

 the bract. 



AntJicr. That part of the stamen which contains 

 the pollen. 



Antheridium. In cryptogams, the male organ 

 of inflorescence, corresponding to the anther. 



Anther if 'erous. Bearing anthers. 



Antherizoids. In cryptogams, the minute usually 

 ciliated organs developed by the antheridia, 

 corresponding to pollen-grains. 



Apetaloux. Having no corolla or inner perianth. 



Apex. The tip or summit of a thing. 



Aphyllous. Not bearing leaves. 



Apical. At the apex. 



Apiculale. Abruptly terminated by a short 

 point or tip. 



Apophiisis. In mosses, an enlargement of the 

 pedicel at the base of the capsule. 



Appendage. Something added or attached to an 

 organ, but unessential to it. 



Appressed. Pressed close. 



Apterous. Not winged. 



Aquatic. Growing in water. 



Arachnoid. Resembling cobweb. 



Arborescent. Becoming a tree or tree-like. 



Archegonium. In mosses, the rudimentary or- 

 gan which develops into the fruit. 



Arcuate. Arched ; bent like a bow. 



Areola, pi. AreolcK. The suaces in any reticu- 

 lated surface. 



