sinuate 



social 



perpendicularly downward into 

 the wood of the host, 

 sin'uate, sinua'tus (Lat., curved), with 

 a deep wavy margin ; sin'uated, 

 deeply waved ; sin' uo late, 

 Binuolaftua, repand, faintly or 

 minutely sinuate ; sin'uose, sin'- 

 uous, sinuate. 



Sin'us (Lat., a curve, a fold), (1) a 

 recess or re-entering angle ; (2) a 

 pore in some Fungi (Lindley). 

 Si'phon (ffl<j>uv, a tube), a pericentral 

 elongated tube in the frond of 

 Polysiphonia and allied Algae; 

 sipho'neous, relating to Algae 

 possessing tubular structure ; 

 Siphoniphy'ton ((pvTov, a plant), a 

 Composite with all its florets 

 tubular ; Sipho'nogam (yd^os, 

 marriage), plants fertilized by 

 means of pollen-tubes, all Phanero- 

 gams ; adj. siphonogam'ic, sipho- 

 nog'amous, the condition being 

 Sipnonog'amy ; siphonoste'lie (<rTr)\rj, 

 a column), having a tubular stele 

 (Jeffrey). 



Sis'ter-cells, cells of the same genera- 

 tion produced by the division of a 

 single (mother) cell, as the pollen - 

 grains of a tetrad. 



Sit'us (Lat., situate), (1) the position 

 occupied by an organ j (2) J the 

 mycelium of some Fungi (Lindley). 

 Skein, a condition of the chromatin of 

 the nucleus in the initial and final 

 stages of division ; daughter ^ or 

 mother ^, according to their 

 development. 



Skel'eton (0-KeXerds, mummy), any 

 framework which persists after the 

 destruction of the organ by fire or 

 corrosion, as the remainder of the 

 cell- wall in ash, or the starch grain 

 after partial solution by an enzyme. 

 Skin, a thin external covering, the 



cuticle or epidermis, 

 slashed, laciniate. 

 slate-grey, the colour of slate, 



schistaceous. 



Sleep, the repose of plants, with 

 changes in position of organs such 

 as leaves, due to absence of light ; 

 ~ Move'ments, positions taken by 



leaves during the night, nycbitropic 

 movements. 



slen'der, long and thin. 



Sli'ding Growth, a gradual change in 

 the relative position of vessels, 

 fibres, etc., due to their develop- 

 ment in a longitudinal direction. 



Slime-flux, a flow of liquid from 

 diseased fruit and forest trees, due 

 to the attacks of various Fungi, 

 producing a fermentation of the 

 cortical elements down to the 

 cambium zone (Massee) ; Slime- 

 Fun'gi = MYXOGASTBES. 



sli'my, mucous. 



Sling-fruit, applied to any fruit which 

 by possessing contractile tissue 

 projects its seeds to a distance. 



Slip, (1) described by Loudon as a 

 shoot from the collar or lower part 

 of the stem of a plant, used for 

 propagation, stem-suckers ; (2) a 

 popular name for CUTTING, but 

 not used by cultivators. 



smarag'dine, smarag'dinus (fffjuipaydos, 

 an emerald), emerald green. 



Smil'acine, a crystalline body oc- 

 curring in the roots of the officinal 

 sarsaparilla. 



smo'ky, fumosus. 



smooth, (1) not rough, opposed to 

 scabrous, free from hairs ; (2) gla- 

 brous, as opposed to pubescent. 



Smut, disease in grain produced by 

 various species of Ustilago. 



Snail-plants, those which are sup 

 posed to be fertilized by snails and 

 slugs, malacophilous plants. 



snow-white, white of absolute purity, 

 niveus. 



Snow-leaves, Jungner's name for cer- 

 tain leaves which are thin or 

 leathery, folded in the bud, and 

 with no pulvinus ; winter-leaves. 



Sob'ole, Sdb'oles (Lat., a sprout), 

 a shoot, especially from the ground ; 

 sobolif erous (fero, I bear), bearing 

 vigorous shoots. 



so'cial (socialis, pertaining to com- 

 panionship), when individuals of 

 the same species usually grow in 

 company, and occupy a consider- 

 able extent of ground. 



242 



