INDEX AND GLOSSARY. 



A (a, privative), prefixed to a Greek 



word signifies without, as aphyllous, 



without leaves. 

 Abbreviations, page, 189. 

 Abortion, nondevelopment of a part. 

 Absorption, 770, 775, 791. 

 Acaulescent, apparently stemless, 169. 

 Accessory, something superadded. 

 Accrescnt, growing after flowering. 

 Accumbent, lying against a thing, 569. 

 Acerose, needle-shaped, 277. 

 Achenium, plural, achenia, 556. 

 Achlaraydeous, without floral envelopes. 

 Acicular, finely needle-shaped. 

 Acotyledonous, without cotyledons. 

 Acrogens, summit-growers, 899. 

 Aculeate, armed with prickles. 

 Acuminate, drawn out into a point, 283. 

 Acute, ending in a sharp angle, 283. 

 Adherent, growing to, 466. 

 Adnate, growing fast to, 495. 

 Adventitious, growing out of the usual 



or normal position, as roots, 134. 

 Aeration, same as Respiration, 815.' 

 Aerophyta, includes the Lichens, 907. 

 Estivation, 383. 



Affinity, resomblanco in essential organs. 

 Age of trees, 97. 



Aggregate, assembled close together. 

 Aglumaceous, without glumes, the same 



as PetaliferjB, 898. 

 Agricultural Chemistry, 834. 

 Air bladders, 311. 

 Air cells or vessels, 790. 

 Air plants, 841. 

 Ala, wing; Ala?, wings, 474. 

 Albumen, 590. Albuminous, 589. 

 Alburnum, sap-wood, 697. 

 Alga?, sea-weeds, 907. Fig. 545-550. 

 Alternate, 222. 

 Alternate generation, 634. 

 Alveolate, with pits like the honey-comb. 

 Ament, a deciduous spike, 348. 

 Ammonia, 839. 



Amorphous, without definite form. 

 Amphigdstria, 626. 

 Amphitropous, 539. 

 Amplexicaul, stem-clasping, 245. 

 Analysis, Botanical, 915. 



Analytical tables explained, 919. 



Anastomosis, union of vessels or veins. 



Anatropous, 537. 



Ancipital, two-edged. 



Andrcecium, 491. 



Androgenous, stamens and pistils on the 



same peduncle; 



Angiospermas, angiosperms, 898. 

 Angiospores, 900. 

 Annual, yearly, 89. 

 Annular cells, 652. 

 Anterior, parts (of a flower) adjacent to 



the bract. 



Anthelmintic, expelling or killing worms. 

 Anther, 497. 



Anthesis, the opening of the flower; flow- 

 ering. 



Antheridia, 629. 



Apetalse, 903. Apetalous, without petals. 

 Aphyllous, without leaves. 

 Apophysis, a swelling, e. g. under the 



thecee of some Mosses. 

 Apothecia, 631. 

 Appendicular organs, 433. 

 Appressed, closely applied but not adher- 

 f ing to ; the same as adpressed. 

 Apterous, without wings. 

 Aquatic, living in water. 

 Arachnoid, resembling cobwebs. 

 Arboreous, arborescent, tree-like. 

 Archegonia, 629. 



Arcuate, arched or curved like a bow. 

 Areolate, having the surface divided into 



little spaces or areas. 

 Aril, an extra sead-covering, 586. 

 Aristate, with an arista or awn (barley). 

 Armed, bearing prickles, spines, etc. 

 Articulated, jointed, as the culm of wheat. 

 Artificial classes, 877. 

 Artificial orders, 878. 

 Ascending, arising obliquely; assurgent. 

 Ascidia, leaves holding water, 308. 

 Attenuate, becoming slender or thin. 

 Auriculate, ear-bearing, 2G7. 

 Awn, the beard of barley, and the like. 

 Axial root, 122. 

 Axil (arm-pit), the angle between the 



petiole and tho branch on the upper 



side. 



