Biosphere 



brevischistostyle 



adj. biospher'ic, agency of plants in 

 migration of peoples (Adams). 



bird-foot'ed, pedate. 



Bi'sect, a vertical section of a 

 quadrat to show the layers of soil 

 and roots in normal position ; also 

 styled Layer Transect (Clements) ; 

 bispor'ons, having two spores ; bi'- 

 strate {stratum, a layer), used when 

 indumentum is in' two layers, the 

 outermost falling off and disclosing 

 the inner, as in Rhododendron 

 fictolactum Balf. f. (Balfour). 



Blast'ea, a spherical shell formed of a 

 single layer of cells, developed 

 from a coenobium ; adj. blast'ean ; ~ 

 Chlor'ophytes (Ciiloropiiytes), 

 Volvocineae ; Blaste'nio-spore (+ 

 Spore), a plurilocular spore ; 

 blastocoe'lian {koIXos, hoUow), 

 applied to the central cavity of 

 Volvox (Janet) ; Blast'ogen {yevo?, 

 race), Poulton's term for Bateson's 

 use of " Mutation," cf. (3), that is, 

 blastogen'ic Varia'tion; Blastopore 

 (TTopo?, passage), an opening from 

 the Archenteron or cyst in the 

 same alga (Janet) ; Blast'ula, the 

 mother-cell in Volvox of the sexual 

 elements (Janet). 



blech'noid {d8os, resemblance), like 

 the fern Blechnum Linn. 



Blemato'gen (i3A^/^a, ^Xi^naros, cover- 

 let ; ydpog, offspring), the universal 

 veil in FhoUota Fr. (G. F. Atkin- 

 son). 



Blend Hy'brid (+ Hybrid), allelo- 

 morphic factor pains blend in an 

 intermediate form (Atkinson). 



Bleph'aroplast, add, (2), by zoologists 

 applied to a centrosome, the centre 

 of the kinetic activity of the 

 nucleus (Hertwig). 



blist'ered, old term for " bullate." 



Blos'som, add, (2), corolla. 



Bod'ies, suspens'ory, = Pseud o- 

 vacuoles. 



Bod'y, cen'tral, incipient nucleus. 



-bole, " combining term for propul- 

 sion " (Clements). 



Bord'ered-pores of Sphagnum Dill., 

 openings surrounded by a distinct 

 flattened ring (Russow). 



borragin'eous, pertaining to Borago 

 Linn. 



botryopt'erid, allied to the fern 

 Botryopteris Presl. 



botryt'ic, Worsdell's term for botryoid, 

 like a bunch of grapes. 



Bot'ulism {hotulus, a sausage), a 

 disease due to a spore-forming 

 anaerobic bacterium (Conn). 



brachybioste'monous {aTrjixwv, stamen), 

 having non-persistent stamens 

 (Delpino) ; brachyclad'ous {KXahvs, 

 a branch), having short branches ; 

 brachydact'ylous (+ Dactyl), the 

 short ultimate rays of Nitella Ag. ; 

 Brachyne'ma {^fJ-a, a thread), the 

 condition in meiosis derived from 

 Strepsinema (Chodat) ; Brach'y- 

 steles, pi., short upper branchlets 

 in Characeae ; Brach'ymeiosis 

 (jLtetoxTts-, reduction), a second 

 meiotic reduction ; Brach'ysomes 

 {aa>fJLa, a body) = Tetrads. 



Bracte, R. A. Salisbury's spelling of 

 Bract. 



Bractea, add, (2) Parlatore's term for 

 connective in conifers ; bract'eoid 

 (efSos, resemblance), bract-like 

 or bracteate. 



bradycarp'ic (jSpaSuV, slow; kopito?, 

 fruit), fruiting after the winter, in 

 the second season after flowering 

 (Wittrock) ; Bradyspore [airdpa, 

 I sow), apphed to a plant which 

 disperses its seeds slowly (Ulrich) ; 

 adj. bradyspor'ous ; cf. anemo- 

 ciroROus. 



Branch-leaf of Sphagnvm Dill, a 

 highly developed leaf from the 

 middle or lower part of a sterile 

 spreading branch (Horrell) ; ~ 

 -gaps, in a fern stele, openings in the 

 central cylinder where a branch 

 is given off (Jeffrey). 



Breech Fertiliza'tion (Jeffrey) = 

 Ckalazogamy. 



brevifurca'tas, applied to shortly 

 forked branchlets of Nitelleae ; 

 brevischist'ostyle (oxi^oi, I split, + 

 Style), a floral type, with short 

 style, " stigma badly formed, and 

 style folded some distance down " 

 (Gates). 



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