Rejection-nucled 
Resin-Tube 
Rejec’tion-nu’clei, pl., certain nuclei 
which do not become part of the 
functional oospheres, the nuclei of 
abortive oospheres (Hartog). 
Rejuvenes’cence (re, back, juvenesco, 
I grow young), the formation of 
a new cell from the protoplasm of 
a cell already existing; meta- 
gam’etal » See METAGAMETAL 
REJUVENESCENCE. 
Reliq/uiae(Lat. ,leavings) =INDUVIAE. 
remote’, remo’tus (Lat., distant), 
scattered, not close together, the 
same as rarus. 
renarius (renalis, pertaining to the 
kidneys), reniform. 
Renew’al, the act of forming anew ; 
~ of Cells= REJUVENESCENCE. 
re/niform, reniform'is (renes, the 
kidneys, forma, shape), kidney- 
shaped ; reniform'i-corda'tus, com- 
bined heart and kidney shape, as 
the leaves of Asaruwm europaeum, 
Linn. 
Ren‘net, veg’etable, an enzyme which 
curdles milk, found in the flowers 
of Galium verum, Linn., and other 
plants. 
Repair’, making good, as ~ of Waste, 
restoring the spent material. 
repand’, repan’dus, repan’dous (Lat., 
bent backwards), with slightly un- 
even margin, less so than ‘‘sinuous.” 
re’pent, re’pens (Lat., creeping), pros- 
trate and rooting. 
Repla’cement, a theory of fertilization 
which assumes that the female cell 
gets rid of certain elements which 
Teaves it an imperfect cell until 
fusion with the male cell replaces 
them. 
Reple'tum (repletus, filled), a fruit 
with the valves connected by 
threads, persistent after dehiscence, 
such as in Orchids, Aristolochia, and 
some Papaveraceae. 
rep’licate, replica’tus (Lat., folded 
back), doubled down, so that the 
upper part comes against the lower; 
rep'licative, replicati’vus = replicate. 
Re’plum (Lat., door-case), (1) a frame- 
like placenta from which the valves 
fall away in dehiscence; (2) fre- 
~ 
quently used so as to include the 
septum of Cruciferae in the term. 
Reproduc’tion, increase (a) asexually 
from one individual, (b) sexually 
from two individuals or organs ; 
reproduc’tive, applied to parts 
which share in reproduction; ~ 
Cells, cells which have no power 
of further vegetative development, 
but by coalescence give rise 
to a product which forms the 
starting point of a new plant; 
~ Organs, the parts especially con- 
cerned in the production of seeds, 
spores, and analogous bodies; in 
Phanerogams, the stamens and 
pistils. 
rep’tant, rep’tans (Lat., crawling), 
REPENT ; creeping on the ground 
and rooting. 
Res herba‘ria (Lat.), the science of 
plants ; botany. 
Reserve’ (reservus, laid up), a storage; 
~ Cel'lulose, a special thickening 
in the cells of seeds, such as the 
date, which can be turned to ac- 
count in germination as food mate- 
rial; ~ Mate’rial, the plastic 
products of metabolism, assimi- 
lated food material in a resting 
condition, as starch and other 
carbohydrates ; ~ Pro’teid, nitro- 
genous substances stored in the 
plant, as proteids, amides, ete. ; 
~ Tra’cheids, tracheid-like cells 
from the parenchyma sheath, for 
the storage of water (Heinricher). 
resil’ient (resiliens, springing back), 
springing or bending back, as some 
stamens. 
Res‘in (resina, rosin), « term applied 
to a group of oxydised hydro- 
carbons, solidified or hardened tur- 
pentine, and insoluble in water ; ~ 
Cell, a cell which secretes resin ; ~ 
Ducts, canals which contain fluid 
resin; ~ Flux, an unnatural and 
abundant flow of resin caused by the 
attack of Armillaria mellea, Sacc. 
on Conifers; ~ Gland, a group of 
cells which form resin; ~ Glut = 
Rustn-Fivx ; ~ Pas’sage ; ~ Tube, 
an intercellular passage coutaining 
223 
