GLOSSARY 



877 



Commissure. The surface by which one carpel 

 joins another, as in the Umbelliferae. 



Comose. Furnished with or resembling a tuft 

 of hairs. 



Complicate. Folded upon itself. 



Compound. Composed of 2 or more similar 

 parts united into one whole. Compound leaf, 

 one divided into separate leaflets. 



Compressed. Flattened, especially laterally. 



Conduplicate. Folded together lengthwise. 



Confluent. Running into each other; blended 

 into one. 



Coniferous. Cone-bearing. 



Connate. United; used especially of like struc- 

 tures joined from the start. 



Connective. The portion of a stamen which 

 connects the two cells of the anther. 



Connivent. Coming into contact ; converging. 



Conoidal. Nearly conical. 



Convolute. Rolled up longitudinally. 



Cordate. Heart-shaped with the point up- 

 ward. 



Coriaceous. Leathery in texture. 



Corm. The enlarged fleshy base of a stem, 

 bulb-like but solid. 



Corolla. The inner perianth, of distinct or con- 

 nate petals. 



Coroniform. Shaped like a crown. 



Corrugate. Wrinkled or in folds. 



Corymb. A flat-topped or convex open flower- 

 cluster, in the stricter use of the word equiv- 

 alent to a contracted raceme and progressing 

 in its flowering from the margin inward. 



Corymbose. In corymbs, or corymb-like*. 



Costa. A rib ; a midrib or mid-nerve. 



Costate. Ribbed ; having one or more longi- 

 tudinal ribs or nerves. 



Cotyledons. The foliar portion or first leaves 

 (one, two, or more) of the embryo as found in 

 the seed. 



Crateriform. In the shape of a saucer or cup, 

 hemispherical or more shallow. 



Creeping. Running along at or near the sur- 

 face of the ground and rooting. 



Crenate. Dentate with the teeth much rounded. 



Crenulate. Finely crenate. 



Cristate. Bearing an elevated appendage resem- 

 bling a crest. 



Crown. An inner appendage to a petal, or to 

 the throat of a corolla. 



Cruciate. Cross-shaped. 



Crustaceous. Of hard and brittle texture. 



Cucullate. Hooded or hood-shaped ; cowled. 



Culm. The peculiar stem of Sedges and Grasses. 



Cuneate. Wedge-shaped ; triangular with the 

 acute angle downward. 



Cuspidate. Tipped with a cusp or sharp and 

 rigid point. 



Cyme. A usually broad and flattish determinate 

 inflorescence, i.e. with its central or terminal 

 flowers blooming earliest. 



Cymofte. Bearing cymes, or cyme-like. 



Deciduous. Not persistent ; not evergreen. 

 J)ecompound. More than once compound or 

 divided. 



Decumbent. Reclining, but with the summit 



ascending. 



Decurrent (leaf). Extending down the stem 

 below the insertion. 



Decussate. Alternating in pairs at right angles. 



Definite. Of a constant number, not exceeding 

 twenty. 



Deflexed. Bent or turned abruptly downward. 



Dehiscent. Opening regularly by valves, slits, 

 etc.. as a capsule or anther. 



Deltoid. Shaped like the Greek letter A. 



Dentate. Toothed, usually with the teeth di- 

 rected outward. 



Denticulate. Minutely dentate. 



Depressed. Somewhat flattened from above. 



Di-, Dis-. A Greek prefix signifying two or 

 twice. 



Diadelphous (stamens). Combined in two sets. 



Diandrous. Having two stamens. 



Dicarpellary. Composed of two carpels. 



Dichotomous. Forking regularly by pairs. 



Dicotyledonous. Having two cotyledons. 



Didymous. Twin ; found in pairs. 



Didynamous (stamens). In two pairs of un- 

 equal length. 



Diffuse. Widely or loosely spreading. 



Digitate. Compound, with the members aris- 

 ing together at the apex of the support. 



Dimerous (flower). Having all the parts in 

 twos. 



Dimorphous. Occurring in two forms. 



Dioecious. Unisexual, with the two kinds of 

 flowers on separate plants. 



Discoid. Resembling a disk. Discoid head, 

 in Compositae, one without ray-flowers. 



Disk. A development of the receptacle at or 

 around the base of the pistil. In Compositae, 

 the tubular flowers of the head as distinct from 

 the ray. 



Dissected. Cut or divided into numerous 

 segments. 



Dissepiment. A partition in an ovary or fruit. 



Distichous. In two vertical ranks. 



Distinct. Separate ; not united ; evident 



Divaricate. Widely divergent. 



Divided. Lobed to the base. 



Dorsal. Upon or relating to the back or outer 

 surface of an organ. 



Dorsoventral. With distinction of back and 

 front, or placed with reference to the back or 

 front. 



Drupaceous. Resembling or of the nature of a 

 drupe. 



Drupe. A fleshy or pulpy fruit with the inner 

 portion of the pericarp (1-celled and 1-seeded, 

 or sometimes several-celled) hard or stony. 



Drupelet. A diminutive drupe. 



E- or Eos-. A Latin prefix having often a priva- 

 tive signification, as ebracteate, without bracts. 



Echinate. Beset with prickles. 



Ecological. Concerning the relation of plants 

 to their surroundings. 



Effuse. Very loosely spreading. 



Emarginate. Having a shallow notch at the 

 extremity. 



