toma 



fiporangium 



So'ma {^vfJM, a body), the body as 

 distinguished from the germ or re- 

 productive portion (L. H. Bailey), 

 pi. So'mata, granules of any kind ; 

 So'ma-plasm {-KKifffiu, moulded), 

 Weissmann's term for the proto- 

 plasm of the body or vegetative 

 ■ portion, in opposition to the germ- 

 plasm ; somatar'ohous {o.pxh, be- 

 ginning), that kind of cell-division 

 in which one portion continues the 

 reproductive function and the other 

 transmits the somatic function (De 

 Yries) ; Somat'ia, starch-like struc- 

 tures in the fovilla of [jollen-grains 

 (Saccardo) ; somat'io Apog'amy, 

 when the cell which gives rise to 

 the sporophyte possesses the haploid 

 chromosomes ; = Euapogamy ; '- 

 Cell, (1) cell not specially modified, 

 the opposite of a reproductive cell ; 

 (2) a cell with unreduced number of 

 ' chromosomes (Benson); sometogen'ic 

 {•yivot, offspring), Weismann's word 

 for "acquired characters"; Somat'o- 

 phytes {<pvrhv, a plant), the higher 

 plants, possessing adult parts and 

 organs; adj. somatophyt'ic ; Soma- 

 tot'ropism {rpoiri}, a turning). Van 

 Tieghem's term for the directive 

 influence of the substratum on the 

 growth of an organism ; frequently 

 shortened to Somat'ropism ; adj. 

 somatrop'ic. 



■oot'y, fuliginous ; -^ Mould, on Citrus, 

 caused by various species of Meliola 

 which cause sooty patches on the 

 fruit and leaves. 



•or'al, relating to a Sorus. 



Sor'bin, a glucose occurring in Pyrus, 

 some species of which were formerly 

 ranked under Sorbus. 



•or'did, sor'didus (Lat., fouled), dirty 

 in tint, chiefly applied to pappus 

 when of an impure white ; sor- 

 didii'timut, very dirty coloured, 

 grey. 



Sorede' {(rwphs, a heap), a proposed 

 emendation of Sore'diam, pt. Sore'- 

 dia, in Lichens a single algal cell 

 or group of them, enveloped in 

 hyphal tissue, which is able to 

 grow at once into a thallus when 



detached ; a brood-bud ; sore'dial, 

 pertaining to a sorediura ; -*' 

 Branch, a branch produced by de- 

 velopment of a soredium into a 

 new thallus, while ^till attached 

 to the mother- thallus ; sore'diate, 

 soredia'Lus, bearing small surface 

 patches ; sorediif'erous {fero, I bear), 

 bearing soredia. 



Sore'ma {crJopevfia, what is ^heaped), a 

 heap of carpels belonging to one 

 flower ; Soreu'ma = Soredium 

 (J. S. Henslow). -> 



Sor'ghin, Passerini's term for the 

 product of transformation of Sor- 

 ghoru'bin, the natural pigment of 

 Sorghuin vulgare, Pers. 



Sorid'inm, Hicks's variant of Sore- 

 dium. 



BOrif'erous {awpbs, a heap ;/«ro, I bear), 

 bearing sori ; Sor'ophore {<pop4w, I 

 bear), a gelitinous cushion on the 

 ventral edge of the sporocarp of 

 Marsilea, and Ferns ; Sor'osphaeres 

 {<r(palpa, a ball), globular groups of 

 wedge-shaped spores in Sorosphacra. 



Soror'es (Lat., sisters), used of physio- 

 logical species (Schroter). 



Soro'se, Soro'sis, Soro'sus {(raphs, a 

 heap), a fleshy multiple fruit, as 

 a mulberry or pine-apple ; adj. 

 sorbose. 



Sor'rowful Flow'ers, "those which 

 exhale their odours only at certain 

 hours of the day, as Pelargonium 

 triste," Soland. (Crozier) ; cf. 

 Plantae tristae. 



So'ms, pi. So'ri {(rtophs, a heap), (1) 

 a cluster of sporangia in Ferns ; (2) 

 in Syuchitrieae, a group of sporangia 

 from a single swarra-cell ; (3) aheap 

 of soredia forming a powdery mass 

 on the surface of a thallus ; ^ Canals', 

 cavities in the young sporangia of 

 certain Pteridophytes (Campbell); -*' 

 Gametang'ium, reproductive bodies 

 in Oiraudia on the assimilating cells 

 (Kjellman) ; -^ Sporang ium, repro- 

 ductive bodies crowded into groups 

 on the branches of KjeVmania ; — 

 Fa'''eion '^ , several sori which have 

 rim into one, without apparent 

 distinction. 



350 



