GLOSSARY AND INDEX, 



OB 



DICTIONARY OF THE PRINCIPAL TERMS IN DESCRIPTIVE 

 BOTANY, COMBINED WITH AN INDEX. 



For the convenience of unclassical students, the commoner Latin and Greek words (or 

 their equivalents in English form) which enter into the composition of botanical names, as 

 well as of technical terms, are added to this Glossary. The numbers refer to pages. 



A, at the beginning of words of Greek derivation, commonly signifies a negative, 

 or the absence of something; as apetalous, without petals; aphyllous, leaf- 

 less, &c. In words beginning with a vowel, the prefix is an; as awantherous, 

 destitute of anther. 



Abnormal, contrary to the usual or the natural structnre. 



Aoonginal, original in the strictest sense; same as indigenous, 



Abortive, imperfectly formed, or rudimentary. 



Abortion, the imperfect formation or the non-formation of some part, 



Abrupt, suddenly terminating ; as, for instance, 



Abruptly pinnate, pinnate without an odd leaflet at the end, 68. 



Acantho-, spiny. 



A caulescent (acaulis), apparently stemless; the proper stem, bearing the leaves 

 and flowers, being very short or subterranean. 



Accessory, something additional; as Accessory buds, 30, 31 \ Accessory fruits, 118. 



Accrescent, growing larger after flowering. 



Accrete, grown to. 



Accumbent, lying against a thing. The cotyledons are accumbent when they lie 

 with their edges against the radicle, 128. 



Acephalous, headless. 



Acerose, needle-shaped, as the leaves of Pines. 



Acetabuliform, saucer-shaped. 



Achcenium, or Achenium (plural achenia), a one-seeded, seed-like fruit, 120. 



Achlamydeous (flower), without floral envelopes, 86. 



Acicular, needle-shaped; more slender than acerose. 



Acinaciform, scimitar-shaped, like some bean-pods. 



Acines, the separate grains of a fruit, such as the raspberry. 



Acorn, the nut of the Oak, 122. 



Acotyledonous, destitute of cotyledons or seed-leaves. 



Acrogenous, growing from the apex, as the stems of Ferns and Mosses. Acrogens, 

 or Acrogenous Plants, a name for the vascular cryptogamous plants, 156. 



Aculeate, armed with prickles, i. e. aculei ; as the Rose and Brier. 



Aculeolate, armed with small prickles, or slightly prickly. 



Acuminate, taper-pointed, 54. 



Acute, merely sharp-pointed, or ending in a point less than a right angle, 54. 

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