Se^egation 



Semidesart 



Segrega'tion {segregatio, a parting), the 

 dissociation of characters from each 

 other in the formation of the germs 

 (Bateson). 



seirolyt'ic {ceipa, a rope ; XvriKhs, able 

 to loose), separation of hereditaiy 

 chai-acters ; Sei'rospore (cnropo, a 

 seed), a spore produced in a branched 

 row resiilting from the division of 

 tenninal cells of particular branches 

 in certain Ceramiaceae ; adj. seiro- 

 epor'ic. 



geismonast'ic, seismon'ic {a-eia-fihs, a 

 shaking), sensible to vibration; 

 Seismot'ropiim (rpoir^, a turning), 

 the power of appreciating and le- 

 sponding to vibration (PfefFer). 



seju'gons, se'jvgus {sex, six ; jugum, 

 a yoke), having six pairs of h aflets, 

 as some pinnate leaves. 



Sela'go Type the presence of alternate 

 fertile and sterile z )ne8, as in Lyco- 

 podium Selago (Bower). 



Seragraph (acAas, a flash; ypd<pa>, I 

 write), an instrument for the aiito- 

 matic recording of light values 

 (Clements). 



Selec'tion, Kat'ural, Darwin's ex- 

 pression for that which Herbert 

 Spencer has termed the "survival 

 of the fittest." 



Selenot'ropism ((xeX^yT?, the moon ; 

 rpoT^, a turning), movements of 

 plants caused by the light of the 

 moon (Musset). 



Self, a florist's term for having the 

 same tint throughout, without 

 markings of other colouis or tints ; 

 -^ -bred, the offspring of self- 

 fertilized flowers (F. Darwin) ; /^ 

 -col'oured, uniform in tint ; '~ 

 -fertility, producing fruit from its 

 own pollen ; -^ Fertiliza'tion, ferti- 

 lized by its own pollen ; ~ Par'asit- 

 ism, parasitic on its own species, as 

 sometimes happens with Viacum ; '- 

 Pollina'tion, the pollen of the same 

 flower brought into close contact 

 with it^ own stigma ; -' Sterility, 

 when pollen though ripe is inopera- 

 tive an the stigma of its own 

 flower ; selfed, [monosyll.], fertilized 

 by its own pollen. 



•z 



341 



sellaeform'is {sella, a saddle ; forma, 

 shape), saddle-shaped. 



Se'men (Lat., seed), the seed of 

 flowering plants ; -^ comicula'tum, 

 the receptacle of cei-tain Fungals 

 (Lindley); ~ mul'tiplex = Spori- 



DESM. 



Semes'ter {semcstris, half-yearly) King, 

 the ring produced in the wood of 

 many tropical trees, in consequence 

 two periods of growth and rest in 

 the year. 



Se'met (scnien, seed), a term used by 

 Grew and others for Anther, 

 cf. Semine. 



semi (Lat.), half ; sem'i-adhe'rent, 

 seTn'i-adhe'reivi {adherens, sticking), 

 half-adherent, that is, the lower 

 part or half; sem'i-amplec'tenB, -^ 

 amplec'tus (Lat., wound about), 

 equitaiit ; --' amplecti'vus is also 

 cited for the same ; sem'i-amplezl- 

 caul, sem'i-amplexicau'lis {amplextis, 

 embracing ; caulis, the stem), ap- 

 plied to leaves whose lower portion 

 half embraces the stem ; sem'i- 

 amplez^us, half-emliracing ; Bem'i- 

 anatlopal, seml-anat'ropoas ( -{- 

 ANATiiOPOUs)=amphitropous ; semi- 

 aquatic (+ aquatic), term for 

 those water-plants which root in 

 the soil, but produce aquatic leaves, 

 otherwise living as land-plants; geml- 

 automatlc {+ automatic), nearly 

 automatic in response to a stimulus, 

 Seml-autom'atism \b the state (Bose) ; 

 seml-calyc'ifonn (-f calycjform), 

 half cup-shaped (J. Smith) ; Seml- 

 cap'sula (-f Capnula) = Cupule ; 

 Semlcell, one half of a Desmid ; 

 semicolum'nar, semicolumna'ris (-|- 

 columnar), semiterete ; semicon'- 

 nate (•=)- connate), applied to 

 f^uch structures as the half-united 

 filaments of certain willows (Wim- 

 raer) ; semi-cor'date, semicorda'tvs 

 (-f-' cordate), heart-shaped on 

 one side only ; semicordiform'ic 

 {forma, shape), somewhat cor- 

 date ; semicyliadra'oeus, --' q/liit/- 

 dricus (H- cylindricus), semiterete; 

 Seml-des'ert, a transition between 

 desert and wood- or grass- land 



