GLOSSARY 



Abnormal. Differing from the usual struc- 

 ture. 



Abortion. Imperfect development or non- 

 development of an organ. 



Abortive. Imperfectly formed, rudimen- 

 tary, or barren. 



Abruptly pinnate. Pinnate without an 

 odd leaflet at the end. 



Acaulescent. Stemless or apparently so. 



Accrescent. Growing larger after flower- 

 ing. 



Accumbent (cotyledon). Having the edges 

 against the radicle or hypocotyl. 



Acerose. Needle-shaped, as the leaves of 

 pines. 



Achene. A small, dry and hard, 1-celled, 

 1-seeded, indehiscent fruit. 



Acicular. Slender needle-shaped. 



Aculeate. Prickly; beset with prickles. 



Acuminate. Tapering at the end. 



Acute. Sharp-pointed, but less so than 

 acuminate. 



Adnate. An organ adhering to a different 

 one; united, as the inferior ovary with 

 the calyx-tube. Adnate anther, one 

 attached for its whole length to the 

 filament. 



Adsurgent = assurgent. 



Adventitious. Out of the usual place. 



Adventive. Not indigenous, but appar- 

 ently becoming naturalized. 



Aequilateral. Equal-sided. 



Aerial. Growing in or pertaining to the 

 air; hence above the groimd or the 

 water. 



Aestivation. The arrangement of the parts 

 in a flower bud. 



Alate. Winged. 



Albumen. See Endosperm. 



Alliaceous. Onion-like, in aspect or odor, 

 or taste. 



Alternate. Not opposite to each other. 



Alveolar. Containing sockets or pits. 



Alveolate. Honeycombed; having angular 

 depressions separated by thin parti- 

 tions. 



Ament. A catkin, or peculiar scaly uni- 

 sexual spike. 



Amentaceous. Catkin-like, or catkin-bear- 

 ing. 



Amphitropous (ovule or seed). Half-in- 

 verted and straight, with the hilum 

 lateral. 



Amplexicaul. Clasping the stem. 



Anastomosing. Connecting so as to form 

 a well-defined network. 



Anatropous (ovule). Inverted and straight, 

 with the micropyle next the hilum. 



Androecium. The whole set of stamens. 



Androgynous. Having both staminate 

 and pistillate flowers in the same in- 

 florescence, or in Caret in the same spike- 

 let, the former above the latter. 



-androus (in compounds) . Having stamens. 



Angiospermous. Having the seeds borne 

 within a pericarp. 



Annual. Of only one year's duration. 

 Winter annual, a plant from autumn- 

 sown seed which blooms and fruits in 

 the following spring. 



Annular. In the form of a ring. 

 Annulate. Furnished with a ring or an- 

 nul us. 



Annulus. A ring, like that of the spore- 

 case of most ferns. 

 Anterior (in the flower). The side towards 



the bract (external). 

 Anther. The part of the stamen which 



contains the pollen. 

 Antherid, Antheridium (-a) . The male organ 



of reproduction in ferns and mosses. 

 Anther iferous. Anther-bearing. 

 Anthesis. The time of expansion of a 



flower. 



Apetalous. Having no petals. 

 Aphyllopodic. Without leaves at the base. 

 Aphyllous. Destitute of leaves, at least 



of green leaves. 



Apical. Situated at the apex or tip. 

 Apiculate. With a minute point. 

 Appressed. Lying close and flat against. 

 Approximate. Near together. 

 Arachnoid. Cobwebby; of slender en- 

 tangled hairs. 



Arborescent. Tree-like, in size or shape. 

 Archegone, or Archegonium (plural arche- 



gonia) . The female organ in mosses and 



ferns. 



Arcuate. Bent or curved like a bow. 

 Areola (-ae). A little, usually angular, 



space on the surface. 

 Areolate. Marked out into little areas; 



reticulate. 

 Aril. A fleshy organ growing about the 



hilum. 



Ariliform. Resembling an aril. 

 Arillate. Having an aril. 

 Aristate. Tipped by an awn or bristle. 

 Aristulate. Diminutive of aristate. 

 Articulate. Jointed; having a node or 



joint. 

 Ascending. Growing obliquely upward, 



or upcurved. 

 Asexual. Without sex. 

 Assurgent. Ascending. 

 Attenuate. Slenderly tapering; becoming 



very narrow. 



Auricle. An ear-shaped appendage. 

 Auriculate. Furnished with auricles. 

 Awl-shaped. Sharp-pointed from a broader 



base. 



Awn. A slender bristle-like organ. 

 Axial= Axile. 

 Axil. The upper angle formed by a leaf 



or branch with the stem. 

 Axile. In the axis of an organ. 

 Axillary. Borne at or pertaining to an 



axil. 

 Axis. The central line of any organ or 



support of a group of organs; a stem, 



etc. 



Baccate. Berry-like. 



Banner. Upper petal of the papilion- 

 aceous flower; vexillum or standard. 



Barbed. Furnished with rigid points or 

 short bristles, usually reflexed like the 

 barb of a fish-hook. 



Barbellate. Finely barbed. 



Barbulate. Finely bearded. 



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