Systole 
Taraxacine 
Syst’ole (svcrod}, a contraction), the 
contraction of the contractile 
vesicles incertain Algae, plasmodia, 
and zoospores. 
Syst/rophe (cverod¢7, rolling up), when 
strong light causes chlorophyll 
grains to congregate into a few 
masses (A. F. W. Schimper) ; adj. 
systroph’ic, as ~ In'terval, or Systro- 
ph'ion, that portion of the PHorrum 
in which systrophe can take place 
(S. Moore). 
systylius (civ, with, oridos, a 
column), the lid fixed to the 
columella in Mosses, and elevated 
above the capsule when it dries ; 
systy lus, when styles coalesce into 
one body, as in Rosa systyla, Bast. 
tabaci’nus, pale brown, ‘“‘ tobacco- 
coloured ;” the name is from Nico- 
tiana Tabacum, Linn. 
Tabasheer’, «a siliceous concretion 
occurring in the joints of bamboo. 
Ta‘bes (Lat., a wasting away), a 
disease, the loss of the power of 
growth and consequent wasting 
away ; tabes’cent, tabes'cens, wast- 
ing or shrivelling. 
Tab’let (tabula, a board or plank), 
(1) the frustule of Diatoms when 
quadrangular ; (2) the rectangular 
colony of Gonium; Tab‘ula, the 
pileus of certain Fungi; tabular, 
tabula’ris, flattened horizontally ; 
~ Roots, buttress-like roots of 
certain tropical trees (Kerner). 
tabula’tus, t(Lat., boarded or floored), 
layer on layer. 
taenia’nus { (taenia, a band), long, 
cylindric and contracted in various 
places; taeniop’teroid, in fossil 
botany, resembling the genus 
Taeniopteris. 
Tag’ma, pl. Tag’mata (rdyua, an 
array), Pfeffer’s term for all ag- 
gregations of molecules ; tagmat‘ic 
Com'plex, a higher molecular 
system. 
Tail, any long and slender prolonga- 
tion; ~ point’ed, excessively acu- 
minate, caudate; tailed, said of 
anthers which have a prolongation 
265 
from the loculus, which part is des- 
titute of pollen-grains. 
Tala’ra + (¢alaria, the winged shoes 
of Mercury), the wing or ala of a 
papilionaceous corolla. 
Ta’lea (Lat.), a cutting, a small branch 
for propagating. 
tall, exceeding the normal height. 
tangen’tial (tangens, touching), at 
right angles to the radial or med- 
ullary rays. 
Tan’ghin, the poison occurring in the 
ordeal poison plant of Madagascar, 
Cerbera Tanghin, Hook. 
Tan’gle, the same as SKEIN (Crozier). 
tan’kard-shaped, thickened and 
gradually enlarged downward, then 
suddenly contracted or ended, as 
some varieties of turnip (Crozier). 
Tan‘nin or Tan’nic Ac’id, an important 
group of astringents, especially 
abundant in some barks, as that of 
the oak ; Tan’nin-sacs, ~-ve'sicles, 
strongly refractive globular bodies 
in cells, which contain tannin. 
Tap-root, the primary descending 
root, forming a direct continuation 
from the radicle; tap-root’ed, 
possessed of a tap-root. 
ta’per, cylindric but angular, and 
gradually diminishing towards the 
end; ~ point’ed, acuminate, as the 
leaf of Salix alba, Linn.; ta’pering, 
regularly diminishing in diameter. 
Tape’sium (rdmys, a carpet), dense 
and wefted superficial mycelium, 
having ascophores seated on it; 
tape’tal, relating to the tapetum ; 
~ Cell, cell of a tapetum ; ~ Lay’er 
=TaPEetuM ; Tapete’, a suggested 
emendation of Tape’tum, a mem- 
brane of granular cells investing 
the sporogenous cells in the arche- 
sporium, absorbed as the spores 
mature. 
Taphrench’yma (rddpos, a ditch, 
éyxuua, an infusion), = BorTu- 
RENCHYMA. 
Tapioca, prepared starch of the roots 
of several species of Manzhot. 
Tarax’acine, a bitter crystalline 
principle found in _ dandelion, 
Taraxacum officinale, Weber. 
