secondary 



Segregate 



differs from the primary wood by 

 not having spiral or annular vessels 

 like those on the protoxylem (Vines). 



Sec'ondine = Secundinb (Crozier). 



Secre'tion (secretio, a dividing), a 

 substance formed from the fluids 

 of the plant by the agency of gland- 

 ular cells; -^ Bod'ies, secretory sacs ; 

 secre'tory, producing a secretion ; -^ 

 Sac, a unicellular or aggregated sac 

 containing excreta as gum, resin, 

 oil ; '- Space, an intercellular space 

 containing similar products of 

 secretion; ~ Tis'sue, as above, it 

 forms a storehouse for the waste 

 products of the plant. 



sec 'tile, scct'ilis (Lat., cut or cleft), 

 as though cut up into portions, as 

 the pollen of some Orchids. 



Sec'tion {sectio, a cutting), (1) a thin 

 slice taken usually for microscopic 

 inspection, in a given direction; 

 (2) an important division of a 

 genus. 



Sec'tor (Lat., one who cuts), the term 

 pericy'clic - , is used by Bastit for 

 interruptions of the continuity of 

 the central cylinder of the subter- 

 ranean portion of Polytrichum, as 

 viewed in cross-section; Sec'tors, cf. 

 PERicYCLic Sectors. 



sec'tus (Lat., cut), parted, completely 

 divided to the base ; in composition 

 it forms the suffix -sect. 



secund', secun'dus (Lat., following or 

 second), parts or organs directed 

 to one side only, usually by 

 torsion; secunda'tus (Lat., second 

 in rank) is given by J. S. Henslow 

 as synonymous ; secondiflo'niB 

 (flos, floris, a flower), the flowers 

 all turned in the same direc- 

 tion ; sec'undine, the second, that 

 is, the inner coat of an ovule ; 

 Secundi'nae inter' nae, an old term 

 for ALBUME>f of a seed; Secun'do- 

 spore (+ Spore), C. MacMillan's 

 term for a spore which can also 

 act as a gamete, as in Ulothrix. 



Se'des Flor'is (Lat.) J, the torus of a 

 flower. 



Se'dile, Clements's term for a society of 

 Sedum. 



sedimen'tary Yeast, bottom-yeast. 



Seed, (1) the fertilized and matured 

 ovule of a phenerogamous plant ; 

 (2) provisionally used in fossil 

 botany, for certain seed-like fruits ; 

 '- Bed, Blair's word for Pla- 

 centa ; -' Bud, in Milne's Dic- 

 tionary is cited for Ovary; ~ 

 Coat = Testa ; ~ -gen'us, any 

 fossil genus of which the seed or 

 fruit is the only poition known; 

 '-' leaf. '^ Lobe = Cotyledon; 

 '^ -ped'icels, of Bennettites, the 

 strand supporting each seed; ^ 

 Sport, a seminal variation ; ~ Stalk, 

 the Funicle or podosperni ; /^ 

 -stems, the seminiferous spadix of 

 Bennettites ; '-' Varia'tion, a varia- 

 tion arising from a seed, and not 

 bud ; '-' Vari'ety, a variety pro- 

 ductd from a s< ed-sport, or one 

 which comes true from seed ; -^ 

 Ves'sel = Pericarp ; Seed'age, pro- 

 posed by L. H. Bailey for the state 

 or condition of being reproduced by 

 seed; Seed'ling, (1) a plant pro- 

 duced from seed, in distinction to a 

 plant propagated artificially ; (2) a 

 young plant so }iroduced. 



segeta'lis (Lat., pertaining to stand- 

 ing crops), growing in fields of 

 grain, 



Seg'ment, Segmen'tum (Lat., a piece 

 cut off), (1) one of the divisions 

 into which a plant organ, as a leaf, 

 may be cleft; (2) each portion of 

 meristem which originates from a 

 single Segment Cell ; --' Cell the 

 basal i)ortion which is successively 

 cut off from the apical cell in 

 growth; '~' Halves, in Hepaticae 

 the two external cells in apical -cell 

 division, the remaining cell being in- 

 t-rnal; Segmenta'tion, (1) division 

 into members; (a) similar, as in 

 a thallophyte, or (b) dissimilar, as 

 in a cormophyte ; (2) the division 

 of the apical ceil; the primitive 

 cell-divisions of the embryo. 



se'gregate, segrega'tus (Lat., separ- 

 ated), kept apart ; a Se'gregate is 

 a species separated from a supe*- 

 species. 



340 



