GLOSSARY. 



249 



Dissepiment : the membrane or par- 

 tition separating one cell, or ar- 

 ticulation of a filament from 

 another. 



Distichous : in two opposing ranks. 



Divaricate : spreading at very wide 

 or obtuse angles. 



Ellipsoidal : of a shape most re- 

 sembling oval. 



Elliptical : oval (not ovate). 



Emlri/o •• the germ or young plant 

 contained in a seed. 



Endochrome : the coloured contents 

 of the cells. 



Epidermis -. the outer coating of cel- 

 lular tissue. 



Epiphi/lic : growing on another ve- 

 getable, but attached to the sur- 

 face only. 



Erumpent (tetraspores) : prominent, 

 as if bursting through the epi- 

 dermis. 



Falcate : shaped like a sickle. 



Easciculate ; tufted. 



Fastigiate : when the branches are 

 parallel and all point upwards, as 

 in the Lombardy poplar. 



Favella : a form of conceptacular 

 fruit, described at p. 69 and p. 

 157. 



Favellidium : a favella, immersed 

 in the frond. (See page 69). 



Fibro-cel hilar : ] when the cells are 



Fibroso-cellular : | firm and elongat- 

 ed and strung together in threads 

 or filaments. 



Filament : a string of cells, placed 

 end to end. 



Filiform : thread-shaped ; also, slen- 

 der and cylindrical. 



Flabelliform : shaped like a fan. 



Flaccid : as if deprived of a stiffen- 

 ing matter (familiarly limp). 



Flexuous : bent from side to side. 



Foliiferous : bearing leaves. 



Free : standing separate and dis- 

 tinct ; also, unattached. 



Frond : the whole plant. 



Fusiform : shaped like a spindle or 

 a rolling-pin, thick in the middle 

 and tapering to either extremity. 



Gelatinous : having the substance 

 of jelly. 



Gemmules : buds, which at length 

 fall off and grow into new indi- 

 viduals. 



Genus: a group of species, nearly 

 related to each other, having a 

 common character in their fructi- 

 fication, and (usually) a simi- 

 larity of general aspect. 



Gonidia : reproductive cells or 

 germs formed in the substance of 

 the plant, and afterwards becom- 

 ing free and separated from the 

 parent. 



Habit : the outward aspect, or ge- 

 neral appearance which a j)lant 

 has to the eye. 



Habitat : the place of growth in 

 which a plant is found. 



Heterogeneous : having more than 

 one nature or substance. 



Homogeneous : having a uniform 

 substance or structure. 



Hi/nline : transparent and colour- 

 less, as water or glass. 



Imbricated : overlapping at the edge 

 like the tiles on a roof. 



Inarticulate : without joints or in- 

 terruptions to continuity. 



Inflated: swollen, as if puffed out 

 with air. 



Internode : the space between two 

 joints of a stem ; an articulation. 



Involucre: Iramuli subtending a 



Involucrate : ) conceptacle, forming 

 a more or less perfect whorl around 

 it. 



Involute : rolled inwards. 



Iridescent : reflecting the change- 

 able colours of the rainbow, or of 

 mother-of-pearl. 



Lacinia : a narrow lobe or segment. 



Laminia : the surface of a frond, or 

 blade of a leaf. 



Lanceolate : flat, broad in the mid- 

 dle and narrowed to each end, 

 like the head of a lance. 



Level-topped : same an fastigiate. 



Lichenoid : irregularly lobed, and 



