Signs 



Sinker 



Signs, arbitrary symbols for shortly 

 stating certain facts ; a selection of 

 those more generally used, is given 

 in Appendix A. 



Sil'icle, Silic'ttla, Sil'icule (Lat., a 

 little husk or pod), (1) a short 

 siliqua, not much longer than wide ; 

 (2) = CARPOCLONIUM of Algae. 



silicic'olous (silex, silicis, a flint, colo, 

 I inhabit), used of Lichens which 

 grow on flints ; Silicifica'tion, the 

 deposition of silica in tissues ; 

 Sil'ico-cel'lulose ( + CELLULOSE), the 

 condition of tissue when silex is 

 intimately blended with it as 

 in Equisetum hyemale, Linn. 

 (Tschirch). 



silic'ulose (+ SILICULA), having 

 silicles as fruits, or resembling a 

 silicle. 



Sil'iqua (Lat.), Silique, pr. Si-leek', 



(1) the peculiar pod of the Cruci- 

 ferae, two valves falling away 

 from a frame, the REPLUM, on 

 which the seeds grow, and across 

 which a false partition is formed ; 



(2) by Blair employed for 

 Legume ; Siliquel'la, a subordi- 

 nate part of a fruit such as the 

 poppy, consisting of a carpel with 

 two extended placentas ; siliq'ui- 

 form (forma, shape), shaped like 

 a silique ; sil'iquose, siliquo'sus, 

 when the fruit is a silique, or 

 resembles one. 



sil'ky, sericeous. 



Sil'va = SYLVA. 



Sil'ver-grain, the appearance in radial 

 longitudinal section of exogenous 

 wood, especially of oak, due to shin- 

 ing plates of the medullary rays. 



sil'very, having a lustre like silver. 



sim'ilary Parts, J elementary organs 

 or tissues (Lindley). 



similiflo'rous (similis, like, flos, fiorls, 

 a flower), applied to an umbel when 

 its flowers are all alike ; Shnili- 

 sym'metry ( + SYMMETRY), when the 

 two halves of a Diatom valve are 

 similar (Schuett) ; consimilarity. 



sim'ple, sim'plex, of one piece or 

 series, opposed to compound, ~ 

 Fruits, those which result from 



the ripening of a single pistil ; ~ 

 Gland, a single cell containing a 

 special secretion ; ~ Gonid'iophore 

 ( + GOXIDIOPHORE), a single hypha 

 as in Penicillium; ~ Hairs, not 

 compound or branched, the pro- 

 longation of a single epidermal 

 cell ; ~ Inflores'cence, a flower 

 cluster with one axis, as a spike, 

 spadix, or catkin ; ~ Leaf, of one 

 blade, with incomplete segmenta- 

 tion ; ~ Nuta'tion, nutation in one 

 direction only ; ~ Pis'til, consisting 

 of one carpel ; ~ Pit, ~ Pore, with 

 only a slight enlargement at the 

 centre, where it meets the neigh- 

 bouring cell ; ~ pri'mary Root, a 

 tap-root; ~ Spor'ophore, a single 

 hypha or its branch, in German, 

 Fruchtfaden ; ~ Stem, a stem which 

 is unbranched. 



simplicis'simus (Lat.), entirely simple. 



simulta'neous (simultaneus, Late Lat. , 

 at the same time) Whorls, when 

 the members are of the same age 

 and developed at the same time. 



Sinal'bin, mustard oil from Brassica 

 alba, Boiss., formerly termed 

 Sinapis alba, Linn., whence the 

 name. 



Sina'grin, or Sin'igrin, a glucoside 

 occurring in the seeds of Brassica 

 sinapoides, Roth, formerly termed 

 Sinapis nigra, Linn. , the origin of 

 the name. 



Sina'pin or Sina'pisin, an alkaloid 

 from Brassica alba, Boiss. (Han- 

 bury & Fluekiger). 



sin'gle, used of a flower which has 

 only one set of petals, as opposed 

 to double or any approach to 

 doubling. 



sinis'trad SINISTRAL. 



sinis'tral, sinis'trorse, sinistror' sus, 

 turned to the left ; cf. DEXTRORSE, 

 and Appendix C. 



Sin'istrin (sinister, the left), a 

 carbohydrate from Urginea and 

 other bulbs, formerly regarded as a 

 gum. 



Sin'ker, the secondary roots of 

 Mistleto, Viscum album, Linn., 

 forming laterals which strik- 



Q 



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