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GLOSSARY 



Culm. The stem of grasses and sedges. 

 Cuneate, Cuneiform. Wedge-shaped. 

 Cupule. A little cup; the cup of the acorn. 

 Cuspidate. Tipped with a sharp and stiff 



point. 

 Cut. Same as incised; or applied generally 



to any sharp and deep division. 

 Cyathiform. With the shape of a cup, or 



particularly of a wineglass. 

 Cymbiform. Boat-shaped. 

 Cyme. Like a corymb, but with centrifugal 



blooming. 

 Cymose. Furnished with cymes, or like a 



cyme. 



Deciduous. Falling off, or subject to fall; 

 applied to leaves which fall in autumn, 

 and to a calyx and corolla which fall 

 before the fruit forms. 



Decompound. Several times compounded 

 or divided. 



Decumbent. Reclined on the ground, the 

 summit tending to rise. 



Decurrent (leaves). With blade-like exten- 

 sion on the stem beneath the insertion, 

 as in thistles. 



Decussate. Arranged in pairs (or whorls) 

 which are successively at right angles (or 

 alternate) with each other. 



Deflexed. Bent downwards. 



Dehiscence. The natural opening of a closed 

 vessel, as of an anther or a pod. 



Dehiscent. Opening by some method of 

 dehiscence. 



Deltoid. Triangular in shape, like the Greek 

 capital A. 



Dentate. Toothed. 



Denticulate. Furnished with very small 

 teeth; a diminutive of dentate. 



Depauperate (impoverished or starved ) . Be- 

 low the natural size. 



Depressed. Flattened, or as if pressed down 

 from above; flattened vertically. 



Dextrorse. Turned to the right. 



Di-, as a prefix in compounds, means two 

 or twice. 



Diadelphous (stamens). United by fila- 

 ments in two sets. 



Diandrous. Having two stamens. 



Dichotomous. Two-forked. 



Dicotyledonous (embryo). Having a pair 

 of cotyledons. 



Didymous. Twin. 



Didynamous. With two stamens longer 

 than the others. 



Diffuse. Spreading widely and irregularly. 



Digitate (fingered). Where the leaflets of a 

 compound leaf are all borne on the apex 

 of the petiole. 



Digynous (flower). Having two pistils. 



Dimerous. Made up of two parts, or with 

 organs in twos. 



Dimorphous. Of two forms. 



Dioecious, Dioicous. With stamens and 

 pistils in separate flowers on different 

 plants. 



Disciform, Disk-shaped. Flat and circular, 

 like a disk or quoit. 



Disk. The face of any flat body; the central 

 region of a head of flowers, like the sun- 

 flower, as opposed to the ray or margin; 

 a fleshy expansion of the receptacle of 

 a flower. 



Dissected. Cut deeply into many lobes or 

 divisions. 



Dissepiment. The partition of an ovary or 

 fruit. 



Distichous. Two-ranked. 



Divaricate. Very widely divergent. 



Divided (leaves, etc.). Cut into divisions 

 extending about to the base or the mid- 

 rib. 



Dorsal. Upon or relating to the back or 

 outer surface of an organ. 



Downy. Clothed with a coat of soft and 

 short hairs. 



Drupaceous. Like or pertaining to a drupe. 



Drupe. A stone-fruit. 



E- or Ex-, as a prefix in compounds, means 



destitute of; as e-costate, without a rib or 



midrib. 



Eared. See auriculate. 

 Ebracteate. Destitute of bracts. 

 Echinate. Armed with prickles (like a 



hedgehog). 

 Elliptical. Oval or oblong, with the ends 



regularly rounded. 



Emarginate. Notched at the summit. 

 Emersed. Raised out of water. 

 Ensiform. Sword-shaped, as the leaves of 



Iris. 

 Entire (foliar organs). The margin not at 



all toothed, notched, or divided. 

 Ephemeral. Lasting for a day or less. 

 Epigynous. Upon the ovary. 

 Epiphyte. A plant growing on another 



plant, but not nourished by it; an air- 

 plant. 

 Equitant. Astride; used of conduplicate 



leaves which infold each other in two 



ranks, as in Iris. 

 Erase. Eroded, as if gnawed. 

 Evergreen. Holding the leaves over winter 



or longer, until new ones appear. 

 Excurrent. Running out, as when a midrib 



projects beyond the apex of a leaf, or a 



trunk is continued to the very top of a 



tree. 



Explanate. Spread or flattened out. 

 Exserted. Protruding out of, as the stamens 



out of the corolla. 

 Extrorse. Turned outwards; the anther is 



extrorse when fastened to the filament 



so as to dehisce outwards (away from the 



pistil), as in Iris. 



