Sanio 



Sere 



Sa'nio, Trabec'ulae of, ligneous pro- 

 cesses crossing the cavity of the 

 tracheid, possibly due to parasitic 

 fungi (Jeffrey). 



Sap'ropel (TnjAo'y, clay), sedimental 

 remains of plants in water (Ser- 

 nander) ; saprope'lic, applied to 

 algae in colonies on decaying vege- 

 tation at the bottom of ponds or 

 lakes (Lauterborn) ; Saproge'o- 

 phytes (-f Geophytes), saprophytic 

 flowering plants, as Epipogum 

 S. G. Gmel., and many fungal 

 myceha (Gams) ; Sapropiank'ton 

 (-f Plankton) consists of auto- 

 trophic flagellates (Gams). 



scapa'ceons, Herbert's expression for 

 '* having a scape." 



Scenedesme'tum, an association of 

 Scenedesmus Meyen. 



Schine'tum, a similar group in which 

 Schinus Linn, is predominant. 



Schinopside'tum, a like group of 

 Schinopsis Engl. 



schizae'oid, like the fern Schizaea 

 Sm. ; schjzae'ous is a synonym 

 (Jeffrey). 



Schizocot'yly (c/. Cotyledon), the 

 forking and multiplying of cotyle- 

 dons (Worsdell) ; Schizog'ony 

 (yo'voj, offspring), splitting off 

 without a sexual process (Minchin) ; 

 Schi'zosomes (cr<3^a, a body), 

 reduced chromosomes (Chodat). 



Schizotriche'tnm, an association of 

 Schizothrix Kiitz. 



scimitar, used of leaves presenting 

 an edge to incident light, as 

 Eucalyptus L'Herit. (Church). 



Sciophy'ta, add, Sci'ophytes. 



sclerophel'loid (ct/cAtjpos-, hard ; ^cAAo?, 

 cork; ethos, form), used for lens- 

 shaped groups of compact cells 

 in lenticels (Neger) ; Sclerophyl'lous 

 For'est, ~Scrub, cf. Ditrifeuticeta . 



Sereef'ing, weeding or thinning a 

 forest (A. S. Watt), 



Scrnb, stunted or densely packed 

 bushes. 



Scu'tum, add, (3) pi. Scu'ta, name ap- 

 plied to the eight shield-like plates 

 which unite to form the outside of 

 the antheridium of Chara Linn. 



Se'bakh, a depression holding salt 

 wat/cr in the rainy season, dry in 

 summer. 



Sector'ial Chlmae'ra, bud variation 

 resulting in mixed tissue in branch 

 of tree or shrub (Harshberger). 



secundifo'lius (folium, a leaf), the 

 leaves all turned towards one side 

 (Herbert). 



Sede'tam, an association of Sedum 

 Tourn. 



Seed-stage, in Gymnosperms, the 

 formation of cones (Church). 



seep, to ooze ; Seep'age, oozing ; 

 slow flow from ill-drained ]a,nd. 



seismonast'ic, add, (2) Biackman's 

 term for the movements of Mimosa 

 pudica Linn. 



sejunc'tus (Lat.), separated, 



Selec'tive Hy'brid, certain factors 

 selected from the parents which 

 are fully developed later (Atkin- 

 son). 



sell-compat'ible, self -fertile (Stout); 

 --- incompat'ible, infertile by its own 

 pollen. 



sem'i-apog'amy (+Apoqamy), a re- 

 duced form of fertilization, as in 

 Phragmidium Link (Blackman) ; 

 sem'i-ectotroph'ic (4-ecto trophic), 

 an intermediate type of mycorrhiza 

 infection in certain conifers (Laing). 



Sempervire'tum, an association of 

 Carex sempervirens Vill. 



Senecione'tam, a like group of 

 Senecio Cineraria DC. 



Separa'tion Discs in Myxophyceae, 

 of a substance secreted by two 

 adjoining cells, appearing like a 

 ring (West). 



Sep'tet, applied to the sets of chromo- 

 somes in Rosa Toum,, in sevens 

 or a multiple of seven (Hurst); 

 sep'tuple, seven sets of chromo- 

 somes affected (Blakeslee), 



se'ral (+ Sere) U'nits; thus Asso- 

 ciES, Colony, Consocies, Family, 

 Socies (Clements) ; Sere {sero, I 

 put in a row), the unit of succession 

 in Clements's scheme ; a concrete 

 developmental - series which can 

 be traced (Tansley and Chipp) ; 

 adj. se'ral, opposed to climax. 



465 



