Systole 



Taraxacine 



Syst'ole (ffvffroXr], a contraction), the 

 contraction of the contractile 

 vesicles in certain Algae, plasmodia, 

 and zoospores. 



Syst'ropne (o-uoro^i?, rolling up), when 

 strong light causes chlorophyll 

 grains to congregate into a few 

 masses (A. F. W. Schimper) ; adj. 

 systropn'ic, as ~ In'terval, or Systro- 

 pn'ion, that portion of the PHOTRDM 

 in which systrophe can take place 

 (S. Moore). 



systyl'ius (avv, with, o-ruXos, 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 Talacum, 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. 



Tablet (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 ; tab'ular, 

 tabula'ris, flattened horizontally ; 

 ~ Roots, buttress-like roots of 

 certain tropical trees (Kerner). 



tabula' tus, ( Lat. , boarded or floored), 

 layer on layer. 



taenia'nus t (taenia, a band), long, 

 cylindric and contracted in various 

 places ; taeniop'teroid, in fossil 

 botany, resembling the genus 

 Taeniopteris. 



Tag'ma, pi. Tag'mata (rdy/^a, 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 



from the loculus, which part is des- 

 titute of pollen-grains. 



Tala'ra J (talaria, 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-snaped, 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 (TOTT???, 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 

 = TAPETUM ; 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 (rd0pos, a ditch, 

 ^yX"/ 1 "*, an infusion), = BOTH- 



RENCHYMA. 



Tapio'ca, prepared starch of the roots 

 of several species of Manihot. 



Tarax'acine, a bitter crystalline 

 principle found in dandelion, 

 Taraxacum officinale, Weber. 



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