446 APPENDIX. 



Albumen, the substance under the inner coat of the testa of seeds, sur- 

 rounding the embryo ; it is sometimes absent. 



Alburnum, the young wood before it becomes hard and coloured. 



Alternate, placed one above another (as if in a spiral direction) round a com- 

 mon axis ; as many leaves round the stem. 



Alveolate, resembling a honey-comb. 



Amentum, catkin ; — a collection of flowers destitute of calyx and corolla, 

 but furnished with bracteae, and falling off in a single piece ; as in 

 Oak, Willow, &c. 



Amplexicaul, stem-clasping ; — the base of the leaf embracing the stem ; as 

 the leaves of Henbane, Lettuce, White Poppy. 



Anastomosing, the uniting or inosculation of veins in leaves. 



Angular, having angles or forming angles ; as the leaves of Thorn-Apple. 



Angulo-dentate, angularly-toothed ; — having teeth-like angles. 



Annular, having rings or circles. 



Annulations, rings or circles. 



Anterior, growing in front of some other body. 



Anther, the body attached to or situated on the top of the filament, com- 

 posed of two lobes or cells containing the pollen or farina, — the 

 element or semen by which the ovules contained in the germen are 

 fecundated. 



Antheriferous, bearing anthers. 



Anthesis, the period when a flower opens. 



Apetalous, without petals. 



Apex, the summit ;— generally applied to a pointed surface. 



Apiculate, terminating abruptly in a little point. 



Appressed, placed close ; hairs which lie close to the stem in an erect 

 position are said to be appressed. The pods of Mustard are ap- 

 pressed. 



Approximate, near together. 



Apterous, without wings, or membranous margins so called. 



Aquatic, growing in water. 



Arborescent, having a tendency to become a tree. 



Arcuate, curved or bent like a bow. 



Arillate, having the appendage termed arillus. 



Arillus, aril ; a process of the placenta adhering to the hilum of seeds and 

 sometimes enveloping them. 



Aristate, awned; abruptly terminated in a hard straight body, as the 

 glumes of most grasses. 



Articulated, jointed ; having manifest joints ; or falling off at the joints. 



Ascending, at first trailing on the ground, then erect ; as the stems of Wall 



Germander. 

 Attenuate, gradually diminishing in breadth, as the leaves of Hounds- 

 tongue. 

 Auriculate, having auricles or appendages at the base resembling ears. 

 Awn, the arista or beard of the glumes of grasses. 

 Awned, having a beard or awn. 



