Siccus 



OF BOTANICAL TERMS. Simultaneous Whorl 



height; especially one having 

 several stems. Compare Bush, 

 Undershrub, and Tree. 



SICCUS, dry. 



SIEVE-CELL, see Sieve-tube. 



StEVE DlSK, the perforated sep- 

 tum between the ends of ad- 

 joining sieve-tubes; sieve-plate. 



SIEVE-PLATE, see Sieve-disk. 



SIEVE-PORE^, the perforations in 

 a sieve-disk. 



SIEVE- TUBE, a form of vessel 

 characteristic of the phloem 

 portion of fibrovascular bun- 

 dles. Sieve-tubes consist of 

 elongated, thin - walled cells, 

 united end to end in rows, 

 •with the transverse septa 

 (sieve-disks) perforated in a 

 sieve-like manner so that the 

 protoplasm is continuous from 

 one vessel to another; sieve- 

 cell; clathrate-cell; bast-ves- 

 sel. 



SIG'ILLATE, appearing as if 

 marked with impressions of 

 a seal, as the rootstock of 

 Solomon's seal. 



SIGMOID, curved in two direc- 

 tions, like the Greek sigma or 

 letter S. 



SlL ICLE, a short silique, as that 

 of shepherd's-purse. 



sIlICULA (pi. Sllic'uliie), see Sil- 

 icle. 



SlL'ICULE, see Silicle. 



SILlC'ULOSE, having silicles, or 

 resembling a silicle. 



SlL'lQUA (pi. Sil'iquae), see 

 Silique. 



SILIQUE [pro. Si-lek'], the fruit 

 in Cruciferoe — a pod of two 

 carpels, which separate in de- 

 hiscence from a frame -like 

 placenta called a replum; 

 siliqua. 



SlL'lQUOSE, resembling or bear- 

 ing siliques. 



SlLK, the style of Indian corn. 

 SlLK'lT, see Sericeous. 

 SlL'VA, see Sylva. 



SlL'VER GRAIN, plates of medul- 

 lary rays which appear as glim- 

 mering spots upon the surface 

 of wood when split radially. 

 See Medullary Ray. 



SlL'VERlr, white, tinged with 

 bluish gray, and having a 

 metallic lustre. 



SIMPLE, without subdivisions; 

 entire; unbranched. Com- 

 pare Compound. 



SIM'PLE FRUIT, one derived 

 from a single flower contain- 

 ing a single pistil. Compare 

 Collective Fruit and Com- 

 pound Fruit. 



SLM'PLE LEAF, any leaf which 

 does not have distinct subordi- 

 nate leaflets, though it may be 

 lobed. Compare Compound 

 Leaf. 



SIM'PLE NUTA'TION, see Nuta- 

 tion. Compare Circumnuta- 

 tion. 



SIM'PLE PlS'TLL, one consisting 

 of a siugle carpel. 



SlM'PLE PlT, one having no 

 more than a slight enlarge- 

 ment at the centre where the 

 pits of adjoining cells meet 

 (simple pore of Gregory). 

 Compare Bordered Pit. 



SIMPLE PORE (Gregory), see 

 Simple Pit. 



SlM'PLE PRI'MARY ROOT, a tap- 

 root. 



SIM PLE SPO'ROPHORE, a sporo- 

 phore consisting of a single 

 hypha or hyphal branch; fila- 

 mentous sporophore. Com- 

 pare Compound Sporophore. 



SIM'PLE STfiM, an unbranched 

 stem. 



SIMULTANEOUS WHORL, one 

 whose members originate si- 



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