vestibular 
(SUPPLEMENT) 
Zoidogamae 
vestib’ular, applied to stomata, cf. 
VESTIBULE. 
vi'cine (vicinus, near), used by 
Clements for species derived from 
adjacent regions; Vi'cinism, varia- 
tion due to growth of other plants 
of the same species in close prox- 
imity (De Vries); Vi'cinist, a plant 
derived from such ancestry (De 
Vries), 
virgate, virga’tus, (2) with radiating 
lines in pileus of Agarics; either 
ribs or streaks of colour (Fries), 
as in Tricholoma virgata, P. 
Karst. 
Vivip’arism = VIVIPARY. 
volvoca’ceous, vol’vocine, constituted 
like the genus Volvox (F. Black- 
man). 
Water-Cells, large suberised cells in 
the palisade-tissue of succulent 
plants (Brebner). 
Win'dows, employed for openings 
when the flowers do not expand, 
remaining united at base and apex 
of perianth, as in Cryptophoran- 
thus (Rolfe); win'dow - bear‘ing, 
the condition described. 
Wood, cryptogam’ic, the centripetal 
portion of the xylem in the stem 
of Cycadoxyleae. 
Xanthophyl'lins (ptddov, a_ leaf), 
yellow constituents of Chloro- 
phyll, as Carotin, Erythrophyll, 
and Chrysophyll (Tsvett); of. 
CHLOROPHYLLINS. 
Xenemb’ryosperm (+ Empryo, 
orépua, a seed), MacMillan’s term 
for a PARTHENEMBRYOSPERM with 
endosperm arising from fecunda- 
tion, and the pollen derived from 
a flower of another stock; Xeno- 
end’osperm, a plant with embryo 
the result of fecundation, endo- 
sperm parthenogenetic, the pollen 
derived from another individual 
(MacMillan) ; Xenomorpho’sis (+ 
MorpuHosis) = ACTINOMORPHOSIS ; 
Xenodoch’ae (dox, reception), em- 
ployed by Clements to denote 
anomalous successions of plants ; 
Xenopar’asite (+ PARASITE), 4 
specialized form of a parasitic 
fungus when growing on injured 
parts of a strange host, or on 
injured parts of its normal host 
which are immune previous to 
injury (Salmon); the condition is 
Xenopar’asitism; ¢f. OECOPARA- 
SITE. 
Xeriob’oles, -ae (G07, a throw), 
plants dispersing their seeds by 
the drying up of their carpels 
(Clements); Xerocleistog’amy (+ 
CLEISTOGAMY), when flowers re- 
main closed by reason of insuffici- 
ent moisture (Hansgirg); Xero- 
hy'lium (iy, forest), a dry forest 
formation ; xerohyloph’ilus (¢:Aéw, 
I love), dwelling in dry forests; 
Xerohylophy’ta (diAéw, a plant), 
dry forest plants; Xerophy’tia, 
dry forest formations (Clements) ; 
Xeromorpho’sis (+ Monrpqosis), 
changes induced by the action of in- 
creased temperature as the thicken- 
ing of the epidermis (Herbst) ; 
Xeropo'ium (7éa, grass, meadow), 
a heath formation ; xeropooph‘ilus 
(piréw, I love), heath - loving ; 
Xeropoophy'ta (gdurov, a plant), 
heath plants (Clements) ; Xeros’‘ium, 
or Xeros‘ion, a plant succession on 
drained and dried up soil 
(Clements). 
Xy’lium (dor, timber), a wood form- 
ation ; xyloph’ilus (¢:Aéw, I love), 
wood-loving ; Xylophy’ta (¢urdv, a 
plant), wood-plants (Clements). 
zelotyp’ic (¢Aorvmla, rivalry), asex- 
ual (Radlkofer); the condition is 
Zelot’ypy. 
Ze’ro-points, the extremes of high 
and low temperatures which plants 
can endure without being killed 
(Schimper). 
Zoal'lospore (+ ALLOSPORE), Radl- 
kofer’s term for the zoospore of 
Bulbochaete and Coleochaete ; Zoan’- 
drospore (-+ ANDROSPORE), a motile 
androspore or antherozoid of 
Oedogonium (Radlkofer). 
Zoidog’amae (yd0s, marriage), planta 
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