316 GLOSSARY 
clysi‘um (xAvous, a flooding), a succession in a flooded soil. 
-colus (xédAos, dwelling in), combining term for habitat forms. 
community, a mixture of the individuals of two or more species, a group of 
families. 
comospore (xcyy, hair) a plant with hairy or silky disseminules. 
competition, the relation between plants occupying the same area, and depend 
‘ent upon the same supply of physical factors. 
consocies, that subdivision of a formation controlled by a facies. 
copious, used of species in which the individuals are arranged closely but 
uniformly. 
coryphi’um (xopydy, peak), an alpine meadow formation; coryphad, an al- 
pine meadow plant. 
creatospore (xpéas, aros, meat), a plant with nut fruits. 
cremni’um (kpyyves, crag, cliff), a cliff formation; cremnad, a cliff plant. 
creni’um (xpyvy, spring), a spring formation; crenad, a spring plant. 
crymi’um (xpuyds, frost), a polar barren formation; crymad, a polar plant; 
crymophytic, pertaining to polar plants. 
crystallochore (xpvoraAAos, ice), a plant distributed by glaciers, 
cyaneus, azure. 
cyriodoche (xvpios, regular), a normal succession. 
dendri’um (6é%pa, fruit trees), an orchard formation; dendrad, an orchard 
plant. 
derived, coming from other formations or regions, not native. 
diphotic (&-, two), the two surfaces unequally lighted; diphotophyll, a leaf dif- 
ferentiated into palisade and sponge tissues owing to unequal illumination. 
diplophyll (d:Ados, two-fold), an isophotic leaf with water-storage cells in the 
middle. 
disseminule (semen, seed), a seed fruit modified for migration. 
dissophyte (dc¢ds, double), a plant with xerophytic leaves and stems, and 
mesophytic roots. 
-doche (80x, succession), succession. 
drimi’um (Spits, biting, pungent), an alkaline habitat, and the corresponding 
formation; drimad, a plant of such a formation. 
Criodi‘um (dpios, thicket), a dry thicket formation; driodad, plant of a dry 
thicket. 
dysgeogenous (dvs-, bad, yi, soil), weathering with difficulty to form soil. 
ecad (olkos, home), a habitat form due to origin by adaptation; ece’sis (oixjais, 
‘act of coming to be at home), the germination and establishment of in- 
vaders; ecograph, an instrument for measuring a physical factor of a 
habitat; ecotone (révos, tension), the tension line between two zones, for- 
mations, consocies, etc. 
