MARINE ALGJE OF BEAUFORT, N. C. 



549 



Coalescent, becoming united by growth. 



Compacted, closely packed or pressed together. 



Conceptacle, a superficial cavity opening to the 

 surface, within which reproductive organs are 

 developed. 



Confervoid, composed of unbranched filaments, 

 threadlike. 



Confluent, blended into one. 



Conglobate, collected into a ball. 



Conic, conical, cone shaped. 



Constricted, narrowed, contracted. 



Copulation, the union of sexual cells or organs. 



Coriaceous, leathery. 



Cortex, the tissue of a more or less solid alga lying 

 beneath the epidermis, between this and the 

 central region, medulla; when no epidermis is 

 present, the outer region of the thallus surround- 

 ing the medulla. 



Cortical, belonging to or occurring in the cortex. 



Corticated, provided with a cortex. 



Corymb, a flat-topped or convex cluster with the 

 younger parts toward the middle. 



Corymbose, occurring in corymbs. 



Crateriform, cup shaped. 



Crenate, scalloped, provided with rounded, wavy 

 teeth or notches. 



Cruciate, a method of division of a tetrasporangium 

 by walls at right angles to each other, all of the 

 four resulting tetraspores being visible in one 

 plane, grouped around a common center. 



Crustaceans, the thallus consisting of a relatively 

 thin layer closely adherent to the substratum 

 and of brittle texture. 



Cryptostoma (pi., crypstostomata), a small cavity 

 sunk in the thallus and bearing only hairs 

 (paraphyses), found in the Fucaceae. 



Cuneate, wedge shaped. 



Cuticle, the structureless layer bounding the outer 

 surface of many plants. 



Cyathiform, shaped like a wineglass. 



Cylindric, elongated with a circular cross section. 



Cymose, occurring in a more or less broad, flat- 

 topped cluster, with the younger parts toward 

 the periphery. 



Cystocarp, a fruit produced as a result of the fer- 

 tilization of the egg in the carpogonium, includ- 

 ing the mass of carpospores, the accessory struc- 

 tures, and the inclosing, cellular, protective 

 structures, found in many of the Florideae. 



Cystocarpic, bearing cystocarps, used to designate 

 the female plant. 



Decompound, divided several times. 



Decumbent, reclining, but with the apex ascending. 



Dentate, provided with sharp, toothlike structures. 



Dichotomous, a method of branching by forking 

 into two parts of approximately equal size. 



Dichotomy, a forking into two parts. 



Diffluent, becoming separate. 



Dioecious, bearing male and female organs on sep- 

 arate plants. 



Discoid, disklike, having a flat, rounded shape. 



Discrete, separate, not coalescent. 



Disporangium (pi., disporangia], a sporangium 

 whose contents are divided into two spores. 



Dissepiment, a partition. 



Distichous, having the parts borne in two vertical 

 rows, usually from the edges of a more or less 

 flattened structure. 



Divaricate, extremely spreading. 



dm., abbreviation for decimeter, about 4 inche3. 



Dorsal, referring to the upper, or back, surface of a 

 dorsi ventral structure. 



Dorsi-ventral, having unlike surfaces corresponding 

 to back and front or upper and lower. 



Ectosarc, the homy outer covering of hydroids. 

 Ellipsoid, having an elliptical shape. 

 Elliptical, oblong with regularly rounded ends. 

 Endochrome, the coloring matter contained within 



cells. 

 Endophytic, growing within the tissue of another 



plant. 



Epidermal, belonging to the epidermis. 

 Epidermis, a definite, differentiated layer of cells 



bounding the outer surface of a plant. 

 Epiphytic, growing on another plant, using the host 



only for attachment, and not obtaining material 



from it. 



Eroso-denticulate, having minute, irregular, mar- 

 ginal teeth, the margin being so irregular as to 



appear gnawed or bitten. 

 Excenlric, out of the center, one-sided. 

 Exserted, protruding beyond the surface. 



False branching, a type-of branching in which a 

 cell in the midst of a filament elongates and, 

 pushing to one side, continues the growth in a 

 new direction, found principally in the Myxo- 

 phyceae. 



Farinaceous, rough and scaly in appearance. 



Fascicle, a close cluster of stems or branches. 



Fascicled, fasciculate, borne in a f asciclelike manner- 



Fastigiate, the occurrence of stems or branches in 

 erect, parallel clusters. 



Fenestrate, pierced with holes. 



Filamentous, threadlike. 



Filiform, long, with a circular cross section. 



Fistulose, hollow throughout its length. 



Flabellate, fan shaped. 



Flabellum, a fan-shaped structure. 



Flaccid, limp, not rigid. 



