Spiladophjtia 



Bpirospart 



plants " ; Spiladophyti'a, " clay 

 plant formations." 



Spil'us X (o-TTiAos, a stain), the hilum 

 in grasses. 



Spi'na (Lat.) = Spine. 



Spin'dle, any structure which in shape 

 suggests a thread-spindle ; -^ Fi'bres, 

 the achromatic filaments which 

 make up the nuclear spindle ; '-- 

 Pole, an extremity of the nuclear 

 spindle ; -- Hairs, resembling mal- 

 pighiaceous hairs, attached cen- 

 trally, with the ends hooked (De 

 Bary) ; - shaped = fusiform ; 

 Achromatic '~, or Nu'clear '^ , the 

 thread-like protoplasmic figures in 

 nuclear division between the poles. 



Spine, Spi'na (Lat., a thorn), a sharp- 

 pointed woody or hardened bqdy, 

 usually a branch, sometimes a 

 petiole, stipule, or other part ; 

 Spine-arm, in the genus Najas, the 

 representative of a barren stigma 

 (Rendle) ; -' Cell, (1) a transitional '- 

 Arm (Rendle) ; (2) in Chara, certain 

 cells of the cortex on the internodes, 

 ending in a spine ; Spines of the 

 leaves, as of Holly, hardened ex- 

 tremities of the lobes, or spiny 

 elevations ; Spinel'la (dim. of spina), 

 a prickle ; spinello'sus, armed with 

 small spines or hairs ; spines'cent, 

 spines'cens, ending in a spine or 

 sharp point ; spinicar'pous (wapirbs, 

 fruit), with spiny fruit ; spinif - 

 erons, -rus {fero, I bear), bearing 

 thorns ; spinif olius (folium, a leaf), 

 having spiny leaves ; spi'niform 

 {forma, shape), thorn-like ; spi'ni- 

 ger, spinig'eroas (gero, I bear), bear- 

 ing or producing thorns ; spi'nose, 

 apino'sus, spi'nons, spiny, having 

 spines ; Spi'nula (Lat. ), Spi'nule, 

 a diminutive spine ; Spinula'tion, a 

 minute spine or prickle ; spinules'- 

 cent, slightly spiny, or having 

 spinules ; spinulif'erous, -mis {fero, 

 I bear), having small spines ; spi'n- 

 ulose, spinulo'sus, with small spines 

 or spinules ; spi'ny, beset with spines, 

 or resembling a spine. 



spi'ral, spira'lis {spira, a coil), as 

 though wound round an axis ; --' 



Duct, a spiral vessel ; ~ Flow'er, 

 when the members are arranged in 

 spirals and not in whorls ; -' Hark'- 

 ings, secondary deposits in tracheids ; 

 '-' Phyllotax'y, see Phyllotaxy ; -^ 

 Tor'sion = Torsion ; -^ Ves'sels, 

 ducts having markings in a spiral 

 form ; Spi'ralism, monstrosity of a 

 flower due to, torsion. 

 Spire {a-trupa, a twist), (1) a young 

 leaf or shoot of grass; (2) "the 

 continuation of the trunk in ex- 

 current trees like pines" (Crozier) ; 



(3) one turn of a coil or twist ; 



(4) when spiral curves become ver- 

 tical spiral rows (Church). 



Spi'rei9, or Spi'reme {<nrilpr\p.a, a coil), 

 a preliminary stage of nuclear divi- 

 sion as in Lilium, the nucleus 

 assuming an involved filamentous 

 condition or "ribbon" from which 

 the chromosomes are formed. 



Spi'ricle {avupa, a twist), a delicate 

 coiled thread in the surface cells 

 of certain seeds and aQhenes which 

 uncoils when moistened, as in Col' 

 lomia; Spiril'lum, pi. Spirilla, (1) 

 a term for Antiierozoid ; (2) also 

 see next; Spirobacterla, pi. (+ 

 Bacterium), bacteria which form 

 spirally curved filaments, as the 

 genus Spirillum, Cohn ; Spirofi- 

 brU'lae, pi. {cf Fibril), Fayod's 

 term for the spirally twisted hollow 

 threads which he asserts constitute 

 all living protoplasm; Spi'roid, a 

 delicate thickening in the cells of 

 the tentacles of Drosera (Keraer); 

 Spi'roism, the coiling of an organ in 

 development (Morren) ; Spirolo'-beae 

 {\o$hs, a lobe), Cruciferae which have 

 cotyledons folded transversely and 

 the radicle dorsal ; spirolo'bous, with 

 the cotyledons spirally rolled up, 

 shown thus o |i || ; spirophotot'ropous 

 {<p(bs, (pwrbs, light ; rpoiri), a turn), 

 the majority of plants, those whose 

 leaves so surround the axis, that 

 the light in turn falls upon all 

 (Drude) ; Spi'rospart {ffirapros, sown, 

 scattered), hypothetically the finest 

 spirals of hyaloplasm, which con- 

 stitute the Spirofibrillae (Fayod). 



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