MARINE 



OF BEAUFORT, N. C. 



551 



Multicellular , consisting of more than one cell. 

 Multifid, divided many times into lobes or seg- 

 ments. 

 Multinucleate, containing more than one nucleus. 



Nematheciform, shaped like a nemathecium. 



Nemathecium (pi. nemathecia) a wartlike elevation 

 of the surface containing organs of reproduction. 



Node, a joint in a distinctly segmented stem. 



Nodule, a small knot, or thickened, dense struc- 

 ture. 



Nucleus, a differentiated portion of the living 

 material contained, usually, near the center of 

 each cell; the central mass in the sexually 

 formed fruit of some Florideae. 



Obconi-obovoid, obovate, but more narrowed at the 



narrower (basal) end. 

 Obdeltoid, shaped like the Greek capital letter 



delta, but reversed, with the narrower part 



toward the base. 

 Oblong, longer than broad, with nearly parallel 



sides. 

 Obo-vaie, reversed ovate, with narrower end toward 



the base. 



Obtuse, blunt or rounded at theend. 

 Oogonium (pi. oogonia), a single-celled female 



organ bearing one or more eggs. 

 Orbicular, flat with a circular outline. 

 Ovate, ovoid, egg shaped. 



Palmate, divided into lobes arising from a common 

 base, like the fingers from a hand. 



Palmatifid, divided in a palmate manner almost to 

 the base. 



Paniculate, having the branches or parts arranged 

 in a loose cluster. 



Papilla, a small, short, superficial outgrowth. 



Papillate, bearing papillae. 



Paraphysis (pi. paraphyses), a sterile filament pro- 

 jecting, usually, from the surface of many algae, 

 usually borne in clusters, frequently with the 

 fruiting organs. 



Parasitic, living on or in another plant or animal 

 and obtaining nourishment from it. 



Parenchymatous , consisting of loose tissue, com r 

 posed of thin- walled cells of fairly uniform di- 

 ameter in every direction, and often with con- 

 spicuous intercellular spaces. 



Parietal, situated toward the wall, away from the 

 center. 



Partheno genetically, applied to a method of develop- 

 ment in which an egg develops without fertiliza- 

 tion. 



Patent, spreading. 



Pectinate, pinnately divided into narrow segments 

 or branches set close together like the teeth of a 

 comb. 



Pedicel, a short stalk bearing a specialized organ. 



Pedicellate, borne on a pedicel. 



Peduncle, a stalk bearing an organ or a group of 

 organs, larger than a pedicel. 



Penicillate, shaped like a pencil. 



Perforate, pierced through, forming a hole. 



Pericarp, the differentiated, sterile, cellular, pro- 

 tective structure inclosing the carpospores and 

 accessory structures in many Florideae. 



Pericentral, applied to structures grouped around a 

 common center or axis. 



Peripheral, toward the circumference. 



Perithallium, the dorsal (upper) portion of a flat 

 thallus which is differentiated into two regions. 



Petiole, the stem of a leaflike structure. 



Phycoerythrin, a red pigment occurring in the 

 Rhodophyceae. 



Piliferous, bearing hairs. 



Pinna (pi. pinnae), one of the divisions of a pin- 

 nately divided structure. 



Pinnate, having branches or parts on opposite sides 

 of a common stem or axis, as in a feather. 



Pinnulate, applied to a structure which has pinnae 

 pinnately divided, twice pinnate. 



Pinnule, one of the secondary divisions of a pin- 

 nulately divided structure. 



Placenta, a more or less conspicuous structure 

 serving as the place of origin and attachment for 

 the gonimoblasts in the sporocarp of many 

 Florideae. 



Plumose, featherlike or plumelike. 



Plurilocular, a term used for the reproductive 

 organs of many Phaeophyceae which are divided 

 by walls into numerous compartments, produc- 

 ing a single motile reproductive cell in each 

 compartment. 



Polychotomous, a method of branching in which the 

 thallus is divided into many parts of more or less 

 equal size. 



Polygonal, having many angles and many sides. 



Polysiphonous, consisting of several coherent lon- 

 gitudinal rows of cells. 



Polyspores, many spores borne in one sporangium. 



Procarp, the complex female organ of many Flori- 

 deae, consisting of the carpogonium, one or more 

 auxiliary cells, and other accessory cells. 



Proliferation, an outgrowth. 



Proliferous, bearing outgrowths. 



Propagulum (pi. propagula), a many-celled body, 

 formed from a vegetative portion of a plant, and 

 specialized for propagation. 



Pseudo-, used as a prefix to denote having the ap- 

 pearance of possessing a quality but not pos- 

 sessing it. 



Puliiinate, cushion shaped. 



Pyramidal, pyramid shaped. 



