GLOSSARY OF TECHNICAL TERMS 



Accrescent. Increasing in size with age. 

 Accumbeat. Lying against, as the radicle against the 



edges of the cotyledons. 

 Acuminate. Gradually tapering to the apex. 

 Acute. Pointed. 



Adnate. Congenitally united to. 

 Adventitious. Said of buds produced without order 



from any part of the stem. 

 Estivation. The arrangement of the parts of a flower 



in the bud. 

 Akene or nchene. A small dry and hard, 1-celled, 



1-seeded, indehiscent fruit. 

 Albumen. The deposit of nutritive material within 



the coats of a seed and surrounding the embryo. 

 Am^nt. A iinisexual spike of flowers with scaly 



bracts, usually deciduous in one piece. 

 Amphitropous. Descriptive of an ovule with the hilum 



intermediate between the micropyle and chalaza. 

 Anatropous. Descriptive of a reversed ovule, with the 



micropyle close by the side of the hilum, and cha- 

 laza at the opposite end. 

 Andro-dioecious. With perfect flowers on one indi- 

 vidual and staminate flowers only on another. 

 A7idrogynous. An inflorescence composed of male 



and female flowers. 

 Angiospermse. Plants with seeds borne in a pericarp. 

 Annular. In the form of a ring. 

 Anterior. The front side of a flower, that is averse 



from the axis of inflorescence. 

 Anther. The part of the stamen containing the pollen. 

 Anthesis. The act of opening of a flower. 

 Apetalous. Having no petals. 

 Apex. The top, as the end of the leaf opposite the 



petiole. 

 Apiculate. Ending in a short pointed tip. 

 Apophysis. An enlargement or swelling of the surface 



of an organ. 

 Arcuate. Moderately curved. 

 Areolate. Marked by areolae or spaces marked out on 



a surface. 

 Aril. An extraneous seed-coat or covering, or an 



appendage growing about the hilum of a seed. 

 Ariloid. Furnished with an aril. 

 Aristate. Furnished with awns. 

 Articulate. Jointed or having the appearance of a 



joint. 

 Auricled or auHculate. Furnished with an auricle or 



ear-shaped appendage. 

 Axil. The angle formed on the upper side of the 



attachment of a leaf with a stem. 

 Axillary. In or from an axil. 



Baccate. Berry-like. 



Bark. The rind or cortical covering of a stem. 



Berry. A fruit with a homogeneous fleshy pericarp. 



Bipinnate. Doubly or twice pinnate. 



Brad. The more or less modified leaf of a flower- 

 cluster. 



Bracteate. Furnished with bracts. 



Bracteolate. Furnished with bractlets. 



Bractlet. The bract of a pedicel or ultimate flower- 

 stalk. 



Branch. A secondary axis or division of a trmik, 



Branchlet. An ultimate division of a branch. 



Bud. The undeveloped state of a branch or flower- 

 cluster with or without scales. 



Bud-scales. Reduced leaves covering a bud. 



Calyx. The flower-cup or exterior part of a perianth. 



Campanulate. Bell-shaped, or elongated cup-shaped. 

 Campylotropous. Descriptive of an ovule or seed 



curved in its formation so as to bring the micropyle 



or apex down near the hilum. 

 Canescent. Hoary, with gray or whitish pubescence. 

 Capsule. A dry dehiscent fruit of more than one 



carpel. 

 Carpel. A simple pistil or an element of a compound 



pistil. 

 Catkin. The same as an ament. 

 Caudate. Furnished with a tail, or with a slender 



tip or appendage. 

 Centripetal. Developing from without toward the 



centre. 

 Chalaza. The part of an o\-ule where the coats and 



nucleus are confluent. 

 Chartaceous. Having the texture of paper. 

 Ciliate. Fringed with hairs. 

 Cinereous. Ashy gray. 



Circinnate. Involute from the apex into a coil. 

 Circumscissile. Circularly and transversely dehiscent. 

 Clavate. Club-shaped. 

 Cocci. Portions into which a lobed fruit with 



1-seeded cells splits up. 

 Cochleate. Siiell-shaped, spiral like the shell of a snail. 

 Columella. The persistent axis of a capsule. 

 Commissure. The face by which 2 carpels unite. 

 Complanate. Flattened. 

 Conduplicate. Folded together lengthwise. 

 Cone. An inflorescence or fruit formed of imbricated 



scales. 

 Conferruminate. Stuck together by adjacent faces. 

 Connate. United congenitally. 

 Connective. The portion of a stamen which connects 



the two cells or lobes of an anther. 

 Contortiiplicate. Twisted and plaited, or folded. 

 Convolute. Rolled up from the sides. 

 Cordate. Heart-shaped. 

 Coriaceous. Of the texture of leather. 

 Corymb. A flat-topped or convex open flower-cluster, 



the flowers opening from the outside inward. 

 Corymbose. Said of flowers arranged in corymbs. 

 Cotyledons. The leaves of the embryo. 

 Crenate. Scalloped. 

 Crenulaie. The diminutive of crenate. 

 Crustaceous. Of hard brittle texture. 

 Cucullate. Hooded or hood-shaped. 

 Cuneate. Wedge-shaped, or triangular with an acute 



angle downward. 

 Cyme. A flower-cluster, the flower opening from the 



centre outward. 

 Cymose. Bearing cymes or relating to a cyme. 



Deciduous. Falling, said of leaves falling in the au- 

 tumn, or of parts of a flower falling after anthesis. 



Declinate. Bent or curved downward. 



Decompound. Several times compound or divided. 



Decurrent. Running down, as of the blades of leaves 

 extending down their petioles. 



Decussate. In pairs alternately crossing at right an- 

 gles. 



Dehiscent. The opening of an anther or capsule by 

 slits or valves. 



Deltoid. Having the shape of the Greek letter A. 



Dentate. Toothed. 



Denticulate. Minutely toothed. 



Diadelphous. Said of stamens combined by their fila- 

 ments into 2 sets. 

 I Dichotomous. Forked in pairs. 



