Trees of New York State 417 



GLOSSARY 



Abaxilly. On the side ;i\v;i_v from the nxis; on tlie lower surface. 



Abortion. The arrested develojmieiit or non-development of an organ. 



Abortive. Jiiij)erfectly developed; non-functioning; non-fertile. 



Accessory. Something additional; of the nature of an appendage. 



Acicular. Slenderly needle-shaped. 



Acidulous. Somewhat sour. 



Acorn. The fruit of the oak, consisting of a nut with its base enclosed in a 



cup of imbricated scales. 

 Acrid. Bitterly pungent; irritatiiig. 

 Acuminate. Ending in a, tajtering point. 



Acute. Tai>ering to a point at an angle less than a right angle. 

 Adnate. Said of unlike parts which grow together. 



Adaxilly. Borne on tlie side nearest the axis, as the upper side of a leaf. 

 Albumen. Nutritive material surrounding the embryo in seeds. 

 Albuminous. Furnished with albumen. 

 Alternate. Placed singly along a primary axis. 

 Ament. A scaly spike generally with a lax axis. 

 Anastomosing. Uniting to form reticulations. 



Androgynous. Composed of both staminate and pistillate flow-ers. 

 Angiospermous. Having the seeds borne vvithin a pericai-p. 

 Anther. The pollen-bearing portion of the stamen. 

 Anthesis. The time of expansion of a tiower. 

 Apetalous. Without petals or corolla. 



Apex. Top; tip; that portion farthest from the point of attachment. 

 Apiculate. Ending in a short pointed tip. 

 Apophysis. An enlargement or swelling on the surface of an organ at some 



particular part. 

 Appressed, Lying flat against or together for the whole length. 

 Arborescent. Tree-like in growth or general appearance. 

 Arcuate. Moderately curved. 

 Aril. An extraneous or late-foi"med seed coat or covering; an appendage 



growing from the stalk of the ovule prior to ripening. 

 Aromatic. Fragrant; spicy. 



Ascending. Curving or rising obliiiuoly u})ward. 

 Attentuate. Slenderly tapering. 



Auriculate. Furnished with ear-shaped appendages or auricles. 

 Awl-shaped. XarroAV, terete or somewhat so, and attentuate from a broader 



base to a slender or rigid point. 

 Awn. A bristle-shaped appendage. 

 Awned. Provided with or bearing an awn. 



Axil. The upper angle between a lateral organ and tlie main axis. 

 Axillary. In, or growing from the axil. 

 Axis. The central line or longitudinal support on which organs or parts are 



arranged. 



