Triticin 
tube-shaped 
Tri'ticin, the proteid of wheat, 
Triticum vulgare, Vill., present in 
its gluten. 
triun’dulate (tri, three, + UNDULATE), 
used for Diatoms having three un- 
dulations on the dorsal side of the 
valve, 
trival’vular (77, three, + VALVULAR), 
three-valved. 
triv‘ial (trivialis, common-place), 
ordinary, common; ~ Names, the 
common name of a plant, the 
adjective, or more rarely, the 
second substantive appended to a 
generic name to connote a species. 
Trix’eny (rp, three, évos, a guest or 
host), De Bary’s term for the con- 
dition of a parasite which passes 
its career in three host-plants. 
troch’lear, trochiea’ris (trochlea, a 
pulley), trochlea‘riform (forma, 
shape), pulley-shaped. 
troph’ic (rpo¢}, nourishment), relat- 
ing to increase in thickness, cf 
TropHy; trophile’gic (Aéyw, I 
collect), collecting food - material 
for the plant, as the shell-like 
barren fronds of Platycerium are 
supposed to do (Archangeli) ; 
Troph’ophyte, an error for TrRo- 
POPHYTE; Troph’oplast (w\acrds, 
moulded), A. Meyer’s term for the 
essential granules in protoplasm, cf. 
Piastip ; Troph’oplasm (mAdcya, 
that formed), theALVEOLAR-PLASMA 
of Strasburger; Troph’opollen + 
(+ Po.tEn), the partition of an 
anther-loculus or its remains (Lind- 
ley) ; Troph’osperm, 7'rophosperm’- 
ium, Trophosper’mum (oréppa, a 
seed), = PLacenta; Trophotax’is 
(rdéis, order), Stahl’s term for 
Trophot’ropism (7po7i, a turning), 
phenomena induced in a growing 
organ by the chemical nature of 
its environment; Troph’y, pl. 
Troph’ies, Wiesner’s term for all 
unequal lateral growth of tissue or 
organ, depending on its relation to 
the horizon and the mother-shoot. 
trop’ical, trop’icus (Lat., pertaining 
to a turning), (1) growing within 
the tropics; (2) used for flowers 
which expand in the morning and 
close at night during several suc- 
cessive days. 
Trop’‘is (rpomis, the keel of a vessel), 
in composition used for the keel 
of a papilionaceous flower, or re- 
sembling the same. 
Trop’ism (rporh, a turning), a curva- 
ture which results from a response 
to some stimulus; tropoph’ilous 
(piréw, I love), loving change of 
condition, as TROPOPHYTES ; Trop’- 
ophyte (¢irov, a plant), applied to 
the large majority of plants, which 
are xerophilous and hygrophilous 
according to season (A. F. W. 
Schimper). 
True-par’asite = OBLIGATE-PARASITE. 
Trum’pet-hy’phae, tubes in Lamin- 
arieae having swollen portions 
with transverse septa (F. Oliver) ; 
trum’pet -shaped, tubular, with 
dilated orifice. 
trun’cate, trunca’tus (Lat., short- 
ee as though cut off at the 
end. 
Trun’cus (Lat., tree-stem), (1) the 
main-stem or Trunk of a tree ; (2) 
in Lichens, the thallus. 
Truss, a florist’s term for a flower- 
cluster. 
Try’ma (rpvua, a hole or opening), 
Necker’s term for a drupaceous 
nut with dehiscent exocarp, as the 
walnut. 
Tryp’sin (9p¥7rw, I break in pieces), 
a group of proteolytic enzymes 
analogous to the pancreatic fer- 
ment in animals, such as Bromelin 
and Papain; adj. tryp’tic. 
tubaeform’is (tuba, a trumpet, forma, 
shape), trumpet-shaped ; tuba’tus 
(Mod. Lat.) is a synonym. 
Tube, Z'u’bus (Lat., a pipe), (1) any 
hollow elongated body or part of 
an organ ; (2) the united portion 
of a gamopetalous corolla or gamo- 
sepalous calyx, etc.; ~ Germina’- 
tion, the germination of a spore 
in which the first product is a 
germ -tube; tube -form, tube- 
shaped, tubular or trumpet-shaped 
(Crozier). 
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