GLOSSARY OF SPECIAL TERMS 



Acaulescent. With stem subterranean, 

 or nearly so. 



Accumbent. Cotyledons with margins 

 folded against the hypocotyl. 



Achene. A dry one-seeded indehiscent 

 fruit with the pericarp tightly fitting 

 around the seed. 



Acicular. Needle-shaped. 



Acuminate. Gradually tapering to the 

 apex. 



Acute. Sharp pointed. 



Adnate. An organ adhering to a con- 

 tiguous differing one; an anther at- 

 tached longitudinally to the end of the 

 filament. 



Adventive. Not indigenous, but appar- 

 ently becoming naturalized. 



Albumen. See Endosperm. 



Alliaceotis. Onion-like, in aspect or 

 odor. 



Alternate. Not opposite; with a single 

 leaf at each node. 



Alveolate. Like honeycomb; closely 

 pitted. 



Ament. A spike of imperfect flowers 

 subtended by scarious bracts, as in 

 the willows. 



Amphibious. At times inhabiting the 

 water. 



Amphitropous. Term applied to the 

 partly inverted ovule. 



Amplexicaul. Clasping the stem, or 

 other axis. 



Anastomosing. Connecting so as to form 

 a well-defined network. 



Anatropous. Applied to an inverted 

 ovule with the micropyle very near 

 the hilum. 



Androgynous. Flower-clusters having 

 staminate and pistillate flowers. 



Angiospermous. Pertaining to the An- 

 giospermae; bearing seeds within a 

 pericarp. 



Anther. The part of the stamen which 

 contains the pollen. 



Antherid. The male organ of repro- 

 duction in Pteridophyta and Bryo- 

 phyta. 



Anthesis. Period of flowering. 



Apetalous. Without a corolla. 

 Apical. At the top, or referring to the top. 

 Apiculate. With a minute pointed tip. 

 Appressed. Lying against another or- 

 gan. 



Arborescent. Tree-like, in size or shape. 

 Archegone. The female reproductive 



organ in Pteridophyta and Bryo- 



phyta. 



Areolate. Reticulated. 

 Areolation. The system of meshes in 



a network of veins. 



Areole. A mesh in a network of veins. 

 Aril. A fleshy organ growing about 



the hilum. 



Arillate. Provided with an aril. 

 Aristate. Tipped by an awn or bristle. 

 Aristulate. Diminutive of aristate. 

 Ascending. Growing obliquely upward, 



or upcurved. 

 Asexual. Without sex. 

 Assurgent. See Ascending. 

 Atiricled. (Auriculate). With basal, 



ear- like lobes. 



Awn. A slender bristle-like organ. 

 Axil. The point on a stem immediately 



above the base of a leaf. 

 Axile. In the axis of an organ. 

 Axillary. Borne at, or pertaining to, an 



axil. 



Baccate. Berry-like. 

 Barbellate. Furnished with minute 



barbs. 



Basifixed. Attached by the base. 

 Berry. A fruit with pericarp wholly 



pulpy. 



Bilabiate. With two lips. 

 Bipinnate. Twice pinnate. 

 Bipinnatijid. Twice pinnatifid. 

 Blade. The flat expanded part of a leaf. 

 Bract. A leaf, usually small, subtend- 

 ing a flower or flower-cluster, or a 



sporange. 



Bracteate. With bracts. 

 Bracteolate. Having bractlets. 

 Bractlet. A secondary bract, borne on 



a pedicel, or immediately beneath a 



flower; sometimes applied to minute 



bracts. 



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