GLOSSARY. 



343 



Heterocyst. Intercalated cells of a 

 special character differing from their 

 neighbors. 



Heterogeneous. Unlike or dissimilar in 

 kind. 



Homogeneous. Of the same kind, all of 

 one nature or kind. 



Hormogon. Special reproductive bodies, 

 usually composed of short chains of 

 cells, parts of internal filaments. 



Hyaline. Transparent; resembling glass. 



Hypnosporangiuin. Sporangium enclos- 

 ing hypnospores. 



Hypnospore. Resting spores; spores 

 which repose some time before germi- 

 nating. 



Hypogynous. Seated beneath the female 

 organ. 



Inclosed. Used for intercalated, or inter- 

 vening. 



Intercellular. Between the cells. 



Interstitial. Placed between. 



Isolated. Detached ; placed by itself. 



Isosporc. Applied to spores which are 

 all of one size,. or kind in the same 

 plant. 



Joints. The articulations, or cells of fila- 

 mentous plants. 



Lacerate. Irregularly cleft as if torn or 

 lacerated. 



Lacuna. A depression, cavity or inter- 

 cellular space. 



Lamellce. Thin plates or membranes 

 parallel to each other. 



Larnellose or lamellate. Formed of layers 

 or plates superimposed. 



Lewi* . Smooth, not rough. 



Lanceolate. Shaped like a lance; toper- 

 ing at each end. 



Lateral. Belonging to; borne on the sides. 



Lines. Twelfth part of an inch. 



Lobe. Any division of an organ, or spe- 

 cially a rounded division or projection. 



Lobulate. Divided into small lobes, lobe- 

 lets or lobules. 



Lubricous. Slippery. 



Lunate. Crescent-shaped. 



Luteolns. Yellowish ; diminutive of lu- 

 teus. 



Macrandronx. Having elongated male 

 plants. . 



Macrogonidia. Large gonidia. 



Mamillate. Bearing teat-shaped pro- 

 cesses. 



Matrical. Belonging to the matrix. 



Medullary. Relating to the pith. 



Mesospore, Mesosporiinn. The middle 

 membrane of the coat of a spore. 



Meter. The unity of the French measure 

 of length, equal to 39.37 English inches. 



cm is used for hundredth of a meter. 



nun is used for thousandth of a meter. 



, (the Greek in) for hundred thou- 



sandth of a meter. 25 // equal to one 



thousandth of an inch. 

 Microgonidia. Small gonidia. 

 )r<>bi1<>. Movable. 

 Moni/it'orin. Necklace-shaped, contracted 



at regular intervals. 

 Monwioux. With male and female or- 



gans on the same plant. 

 Mucilaginous. Slimy ; of the consistency 



or appearance of mucilage. 

 Mucro. A short and abrupt small tip. 

 Mncronate. Tipped with a mucro. 

 MulticeUular. Composed of many cells. 

 Multifid. Cleft into many lobes or seg- 



ments. 

 Multipartite. Divided into many parts. 



r. Dwarf. 

 Nanandrous. Having short, or dwarf 



male plants. 



Nodose. Knotty or knobby. 

 Nodulose. Knotted or with swollen 



joints. 

 Nucleus. The central germ around which 



a cell is formed. Small spherical 



bodies contained within spores or 



other cells. 



Obcordate. Inversely heart-shaped. 

 Obovate. Ovate with the broader end 



toward the apex. 

 Ochraceous. Ocher color; light yellow 



with a tint of brown. 

 Oogonia. An ovarian sac or cell bearing 



oospores. 

 Oospore. Spores produced in an ovarian 



sac. 

 Operculuin. A lid ; a top which separates 



by a transverse line of separation. 

 Ormogon. See Hormogon. 

 Ovate. Of the shape of the longitudinal 



section of a hen's egg. 



Papillose; papillate. Bearing or resem- 



bling papillae, minute nipple-shaped 



projections. 

 Parasitic. Growing on or in and living 



upon another plant, or animal. 

 Parenchyma. Compressed on hexagonal 



cellular tissue. 

 Parenchytnatous. Resembling the cellu- 



lar tissue termed parenchyma. 

 Parietal. Growing by or to the wall. 

 Parthenogenesis. Production of fertile 



seed without sexual impregnation. 

 Parthenogonidia. Gonidia produced 



without fecundation. 

 Patent. Spreading. 

 Pectinate. Pinnatind, with narrow close 



segments, like the teeth of a comb. 



