A

Aº = Angstrom unit

Ab

Ab-

Abaxial

Aberrant

Aberration

Abhymenial

Abies

-abilis (-is, -e)

Abiogenesis

Abjection

Abjunction

Aboospore

Abortion

Abrupt

Abruptly pinnate

Abscisic acid = ABA

Absciss-phelloid

Absciss layer = Abscission layer

Abscission

Abscission layer

Absolute growth rate (AGR)

Absolute transpiration

Absorption

Absorption ratio

Abstriction

Abutilon

Acacia

Acalypha

Acanaceous

Acantha

Acanthaceae

Acanthinae

Acantho-

Acanthocarpous

Acanthocladous

Acanthocephalous

Acanthoid

Acatholepis

Acantholimon

Acanthomatium miteharbouring

Acanthophyllum

Acanthophysis

Acanthus

Acaro-

Acarodomatium

Acarophily, Acarophytism

Acarpous

Acaryote

Acaudate

Acaulescent

Acauline, Acaulose, Acaulescent

Acaulis

Acaulis

Acaryallagic  Caryallagic

Accelerated aging test

Accelerator

Accessory

Accessory cell

Accessory character

Accessory chromosome = Sex chromosome

Accessory fructification

Accessory fruit

Accessory multiplication

Accessory pigment

Accessory spore

Accesssory bud

Acclimation

Accommodate

Accrescent

Accumbent = Pleurorhizal

Accumulation

-aceae

Acentric

-aceus (-a, -um)

Acephalous

Acer

Aceraceae

Acerate

Acerose

Acerous

Acervate

Acervulus

Acetabuliforum

Acetaldehyde

Acetyle CoA

N-Acetyle-2-glucosamine

Acetyle-S-CoA

-aceus

Achariaceae

Achatocarpaceae

Achene, Achaenocarp, Akene

Achenecetum

Achillea

Achlamydosporeae

Achlamydous

Achlyogetonaceae

Achromatic

Achromatic spindle  Spindle

Achromatin

Achroos

Acicular

Aciculate

Acid fermentation ( Fermentation)

Acid humus

Acid plant

Aciddye

Acidophile

Acid scarification

Acies

Acinaceaous

Acinaciform

Acme

Aconitrase

Acinos

Aconitum

Acorus calamus

Acotyledones = Cryptogamae

Acotyledonous

Acquired characteristics

Acquired variation

Acr-

Acrandrous

Acrasiales

Acrasieae

Acr-, Acro-

Acrocarpous

Acrocidal

Acrodromous

Acrogamous

Acrogenous

Acrogens

Acrogynae

Acrogyny

Acronychius

Acropetal

Acropetalous inflorescence = Raceme

Acroptilon

Acroscopic

Acrospire = Plumule

Acrospore

Acrostichoid sorus

Acrotonic

Actaea

Actinidia

Actinidiaceae

Actino-

Actinocytic

Actinodromous

Actinolema

Actinomorphic

Actinomycetaceae

Actinomycetales

Actinomycosis

Actinostele

Action spectrum

Actium

Activation by light

Activator = Accelerator

Active transport

Acu-

Aculeate

Aculeolate

Acuminate

Acutangular

Acute

Acutifolius

Acyclic

-ad

Ad-

Adansoniadigitata

Adaptable

Adaptation

Adapted race = Physiologic race

Adaptive enzyme

Adaptor compound

Adaxial

Adcrustation

Additive effects

Additive fixative

Adelpho-

Adelphogamy

Adelphous

Aden-, Adeno-

Adenine

Adenoid

Adenophore

Adenophyllous

Adenose

Adenosine

Adenosine diphosphate (ADP)

Adenosine monophosphate (AMP)

Adenosine triphosphate (ATP)

Adenylic acid = Adenosine monophosphate

Adermin

Adesmy

Adhesion

Adiabatic

Adianthum capillus-veneris

Adjacent

Adjoin

Adjust

Adnascens

Adnate

Adnation

Adnexed

Adonis

Adoxaceae

ADP = Adenosine diphosphate

Adpressed = Appressed

Adsorbed water

Adsorption

Adspersed

Aduncate

Adventitious

Adventive

Adverse

Adynamandry

Aerenchyma

Aecidiospore = Aeciospore

Aecidium

Aecium

Aegicerataceae

Aegilops

Aegle

Aegopordon

Aeluropus

Aenius

Aeonium

Aequalis

Aequi-

Aequi-hymeniferous

Aer-

Aeration tissue = Aerenchyma

Aeration root, Aerating root, Knee

Aereolate

Aerial plant = Epiphyte

Aerial root

Aerobe, Aerobiont

Aerobic respiration

Aerobiosis

Aerophyte = Epiphyte

Aerotropism

Aerotaxis

Aeruginose, Aeruginous

Aerva persica

Aesculus hippocastanum

Aestival, Aestivalis

Aestivation

Aethallium, Aethalium

Aethionema

Aetiology = Etiology

-aeus

Aextoxicaceae

Affinity

Affixed

Aflatoxins

After crop

After ripening

Agaricolous

Agamandroecious

Agamandrous, Agamandrocephalous

Agamic, Agamous

Agamogenesis

Agamogynoecious

Agamogynous, Agamogynecephalous

Agamohermaphrodite, Agamohermaphrodicephalous

Agamospecies = Apomictic species  Apomixis

Agamospermy

Agamotropic

Agamous, Neuter

Agapanthus umbellatus

Agar-Agar

Agaricaceae

Agaricales

Agave

Agavaceae

Agavales

Agdestidaceae

Age and area, Theory of

Ageratum conyzoides

Agglomerate

Agglomerate soil

Agglutinate

Aggregate

Aggregate fruit = Compound fruit

Aggregate species

Aggregation

Aging

Aglao-

-ago

AGR  Absolute growth rate

Agrad

Agrestal, Agrestis

Agri-, Agro-

Agriculture

Agrimonia eupatoria

Agriophyllum

Agrium

Agro-

Agroceric acid

Agroecology

Agronomy

Agropyron

Agrostemma githago

Agrosterol

Agrostis

Agrostology

Agynous

Agyriales = Atichiaceae

Ai, Aio-

Ailanthus altissima

Aiphytium

Aira elegans

Air cavity, Air space

Air-flow hood

Air layering

Air plant = Epiphyte

Air pore  Stomata, Air cavity

Air space  Air cavity

Air spora

Aitio-

Aitiogenic, Aitiogenous

Aitionastic

Aizoaceae = Ficoideae = Ficoidaceae

Aizoon

Aizoon

Ajuga

Akaniaceae

Akene = Achene

Akenium

Akinete

Akinetic

Ajuga-, Ajugi-

Ala (Alae plu. )

Alangiaceae

Alanine (CH2CH (NH2) COOH)

Alar = Alary

Alate

A-layer (Horizon)

Alb-, Albi-, Albo-, -albus (-a, -um)

Albastrum

Albedo

Albidus

Albino

Albizzia

Albizzia lulibrissin

Albizzia lebbeck

Albuginaceae

Albumen

Albuminoids

Albuminous cell

Albumins

Alburnum

Albus

Alcea

Alchemilla

Alchohol

Alchoholic fermentation

Aldehydes

Aldohexose

Aldol

Aldopentose

Aldose

Aldotetrose

Aldotriose

Alepidote

Aleppo gall

-ales

Aleur-, Aleuro-

Aleuriospore

Aleurites

Aleurone grains

Alga (Pl. Algae)

Algae

Alganin = Algin

Algicide

Algicolous

Algin

Algology Phycology

Alhagi

Alien

Aliform

Alios

-alis

Alisma

Alismaceae = Alismataceae

Alismatales

Alkaline

Alkaloids

Alkanna

All-

Allantoid

Allele, Allelomorph, Allelomorphic gene

Allelism

Allelomorph

Allelopathy

Allentosphaeriaceae

Alliaceous

Alliance

Alliaria petiolata

Allied

Allitic soil

Allium

Allium cepa

Allium porum

Allium sativum

Allo-

Allocarpy

Allochronic speciation

Allochrous (Allchroous)

Allochrusa

Allogamy

Allogenic

Allometric coefficient

Allopatric speciation

Allophanoids

Alloploidy

Allopolyploidy

Allosome  Sex chromosome

Allosyndesis

Allotetraploid

Allotropous flower

Allotype

Alluvial soil

Alni-

Alnus

Alnusglutinosa

Alnus subcordata

Alocasia macrorhiza

Alococarpum erianthum

Aloe

Alopecurus

Alpestris

Alpha-ketoglutarate oxidase

Alpha-spore

Alpine

Alpinia officinarum

Alrawia

Alsad

Alsium

Also-

Alstroemeriaceae

Alstromiriales

Alternanthera sessilis

Alternate

Alternate bearing

Alternate host

Alternation of generations

Alternative host

Alternative inheritance  Allelomorph

Alterne

Alterni-, Alternus (-a, -um)

Althaea

Alti-, Alto-, Altus (-a, -um)

Alveolate

Alveole, Alveolus

Alyssopsis mollis

Alyssum

Amaranthaceae

Amaranthaceae

Amaranthus

Amaryllidaceae

Amaryllidales

Amb-, Ambi-

Amberboa

Ambient

Ambiguous

Ambilinearity

Ambiparous bud

Ambly-

Amblyocarpum inuloides

Ameiosis

Ament = Catkin

Amentaceous

Amenti-

Amentiferae = Amentaceae

Amentiferous = Amentaceous

Amentum

Ameristic

Amerospore

Amide

Amide plant

Amine

Amine

Amino acid

Amitosis

Ammivisnaga

Ammo-

Ammochloa palaestina

Ammochthad, Ammodyte

Ammodendron

Ammonia plant

Ammonification

Ammonifiers

Ammonisation = Ammonification

Ammothamus lehmannii

Amoeboid

Amorph

Amorpha frulicosa

Amorphic = Paleomorphic

AMP = Adenosine monophosphate

Ampelidaceae = Vitaceae

Ampelo-

Ampelopsis

Ampelopsis brevipeduncalata

Ampelopsis vitifolia

Amphi-, Ampho-

Amphiaster

Amphibiotic

Amphicarpic

Amphiclinous progeny, Amphiclinous hybrid

Amphicribral bundle

Amphidiploid = Allotetraploid

Amphigastrium

Amphigean

Amphigenous

Amphigynous

Amphikaryon

Amphilepsis

Amphimixis

Amphiphloic siphonostele  Solenostele

Amphisphaeriaceae

Amphispore

Amphitene

Amphithecium

Amphitrichous

Amphitropous

Amphivasal bundle

Ampholyte = Amphoteric electrolyte

Amphoteric

Amphoteric electrolyte

Amplectant, Aplectans

Amplexicaul

Ampli-

Ampliate

Ampulli-

Ampulliform, Ampullaceal, Apullaceous

Amygdalin, Amygdaline

Amygdalus

Amygdoloid

Amylaceous

Amylase

Amyloid

Amylopectin

Amyloplast

Amylose

Amylostatolith

Amylum stars

An-, Ana-

-ana, -anum, -anus

Anabasis

Anabiont

Anabolism

Anabolic

Anacamptis pyramidalis

Anacardiaceae

Anachoropteridaceae

Anachoropteridales

Anacrogynae

Anacrogynous

Anadromic helicoids branching

Anaerobe

Anaerobic respiration

Anaerobiont

Anagalis arvensis

Anagyris

Anakinetic

Anakinetomeres

Analine

Analogous

Analysis

Ananas sativus

Anandrous

Anantherous

Ananthous

Anaphase

Anaphysis

Anascistic

Anastomosis

Anatomy

Anatropous

Anauxite

Ancad

Ancepts

Ancestor

Ancestry

Anchusa

Ancipitous

Ancistro-

Ancistrocladaceae

Ancylistales = Lagenidales

Ancylistidaceae = Lagenidiaceae

Ancylo-

Andrachne

Andragamous, Andragamocephalous

Andreaceae

Andreaeales

Andro-

Androcyte

Androdioecious

Androecium

Androgamy

Androgenesis

Androgonial cell

Androgynecandrous

Androgynecephalous, Androgynous

Androgynophore

Androgynous, Androgynecephalous

Androhermaphroditic, Androhermaphrodicephalous

Android

Andromonoecious

Andromorph

Androphore

Androsace

Androsporangium

Androspore

Androtermone

Androus, Staminate

-androus

Anemo-

Anemochorous

Anemochory

Anemone

Anemophilous

Anemophily

Anemotropism

Anethum gravedens

Aneuploid

Aneurin

Anfractuosus

Angelica

Angio-

Angiocarpous, Angiocarpic

Angiosperm

Angiospermae

Angiospermopsida = Angiospermae

Angstrom unit

Angui-

Anguilluliform

Angular divergence

Anguligerus

Angustate

Angusti-

Angustifoliate

Angustiseptate

Anhydrous

Anhyrobiosis

Aniso-

Anisocotyly

Anisocytic

Anisogamy

Anisogenomatic

Anisogeny

Anisolepidiaceae

Anisomery

Anisophylly = Heterophylly

Anisoplanogametes

Anisotropic

Ankylo-

Annexed = Adnate

Annotinus

Annual

Annual rings

Annular

Annular budding

Annular thickening

Annulate

Annulus

Anoderm

Anomalicidal, Rupturing capsule

Anomocytic

Anonaceae

Anonales

Anoplon coccinum

Anoxia

Anstatica hierochuntica

Antagonism

Antagonistic symbiosis

Antapical plate

Ante-

Antecedent genome

Antepetalous, Antipetalous

Anteposition, Anteposed

Anterior

Antesepalous, Antisepalous

Anth-

Anthemis

Anther

Antheridial cell

Antheridial chamber

Antheridiophore, Antheridial receptacle

Antheridium

Antherozoid

Anthesis

Antho-

Anthocarp

Anthocerotaceae

Anthochlamys

Anthocyanins

Anthocyans

Anthoid

Antholysis

Anthophore

Anthophyta = Angiospermae

Anthotaxy

Anthoxanthin

Anthoxanthins  Flavonic substances

Anthracinus

Anthraciny

Anthracnose

Anthranilic acid

Anthriscas

Anthropogenic climax

Anthropophyte

-anthus

Anthyllis boissien

Anti-

Antibiosis

Antibiotic

Antical, Anticus, Antica, Anticum

Anticlinal

Anticous

Antidromy, Antidromous

Antienzyme

Antimorph

Antipetalous

Antiphyte

Antipodal

Antipodal cells

Antiport  Countertransport

Antirrhinum

Antisepalous

Antithetic

Antitoxin

Antitranspirant

Antitropic

Antitropous = Orthotropous

Antoniaceae

Antrorse

-anus, -ana, -anum

Anvillea garcini

Ap-

Apandrous

Apatite

Aperturate

Aperture

Apetalae = Incomletae

Apex (Pl. Apices)

Aphanes arvensis

Aphaptotropism

Aphelandra squarrosa

Apheliotropic = Aphototropic

Aphlebiae

Aphotic

Aphotometric

Aphototactic

Aphototropic

Aphyllata

Aphyllophorales = Polyporales

Aphyllous, Aphylly

Apical cap

Apical cell

Apical cell theory

Apical growth

Apical meristem

Apical plates

Apiculate

Apiculus

Apium

Apileate

Aplanetism

Aplanogamete

Aplanogamy

Aplanospore

Aplerotic

Apo-

Apobasidiomycete

Apobasidium

Apocarpae

Apocarpous

Apocrenic acid

Apocyaceae

Apocyanales

Apocynum

Apocyte, Apocytium

Apogamy = Apomixis

Apogeny

Apogeotropic

Aponogetonales

Apoheliotropic

Apomictic embryogenesis

Apomict seed

Apomixis = Apogamy

Aponogetonaceae

Apopetalous

Apophysis

Apoplasmodial

Apoplast

Apoplexy

Apoprotein

Aporogamy

Apospory

Apostasiaceae

Apostroph

Apothecium

Apotropous

Apparatus

Apparent free space (AFS)

Appendage

Appendicled

Appendiculate, Appendicular

Applanate

Applied

Apposition

Appressed, Adpressed

Appressorium

Approach grafting

Approximate

Aptandraceae

Apterous

Aquatic

Aqueous tissue

Aqui-

Aquifoliaceae

Aquilariaceae

Aquilegia

Arabans

Arabidopsis

Arabinose

Arabis

Arable land

Araceae

Arachis hypogaea

Arachnoid

Arales

Aralia

Araliaceae

Araliales

Araneose, Araneous = Arachnoid

Arbor, Arbour

Arbuscle

Arbuscules

Arbutu sunedo

Arceuthobium oxycedri

Arche-, Archi-

Archegoniatae

Archegonium

Archeic

Archeology

Archespore

Archesporial cells

Archesporium

Archi-, Arche-

Archicarp

Archichlamydeae

Archigoniophore

Archilichens

Archimycetes

Archoplasm, Arcoplasm, Archiplasm

Arctium

Arcuate

Ardella

Arecaceae = Palmae

Arenaceous, Arenicolous

Arenaria

Areola

Areolate

Areolation

Areole

Arescent

Argentate

Argillicolous

Argillophyte

Arginine

Argyrolobium

Arid land

Aril.

Arillode

Arista = Awn

Aristate

Ariste

Aristida

Aristolochia

Aristolochiaceae

Aristolochiales

Armature

Armed

Armeniaca vulgaris

Armilla = Annulus

Armillate

Armour, Armor

Arnebia

Aroideae = Araceae

Aromatic

Array

Arrect

Arresting

Arrhenatherum

Arrhenokaryon

Arrhizal, Arrhizous

Artefact = Artifact

Artemisia

Arthro-

Arthrogenous

Arthrophytes = sphenopsids

Arthrospore

Arthrosterigma

Article

Articulate= Equisetinae

Articulate

Articulate leaf

Articulation

Artificial character

Artificial classification

Artificial community

Arum

Aruncus ulgaris

Arundinaceaus

Arundinaria

Arundinulaceae

Arundo donax

Arvensis

Ascending, Ascendent

Ascending aestivation

-ascens

Ascidium

Ascigerous, Asciferous

Ascigerous centrum

Asciiform

Asclepiadaceae

Ascocarp

Ascoconidiophore

Ascoconidium

Ascocorticiaceae

Ascogenic cell

Ascogenous, Ascogenic

Ascogenous hyphae

Ascogonium

Ascohymeniales

Ascolichenes

Ascoloculares

Ascoma

Ascomycetae

Ascophore

Ascospore

Ascostome

Ascostroma

Ascus

Asepalous

Aseptate

Asexual

Asexual reproduction

Ash

A-shaped greenhouse

Asparagine

Asparagus

Aspect

Aspect society

Asperate

Aspergillales

Aspergillaceae

Aspergilliform

Aspergillin

Aspergillosis

Asperifoliae = Boraginaceae

Aspermous

Asperugo procumbens

Asperula

Asperulate

Asperulous

Asphodelus tenuifolius

Aspidistra elafior

Asplenium

A-spore = Alpha-spore

Asporogenic

Asporogenous yeast

Assemble

Assimilate

Assimilation

Assimilation number

Assimilative

Assimilatory Quotient = Assimilation quotient

Association

Associes

Assurgent = Ascending

Astelic

Aster

Aster

Asteraceae = Compositae

Asterales

Asterisk

Asteroid

Asterophysis

Asteroxylaceae

Asthenatherum fosskallii

Astichous

Astragalus

Astral ray

Astrantia maxima

Astrocentre = Centrosome

Astrodaucus

Astroid

Astrophiolate

Astrosclereide

Astrosphere = Attraction sphere

Astylocarpellous

Astylocarpepodic

Asymmetrical

Asynapsis

Asyneuma

Atavism

Atelomitic

Ater

Athyriaceae

Athyrium

Atichiaceae

Atomate

-atous

ATP= Adenosine Triphosphate

Atractylis

Atraphaxis

Atrate = Atratous

Atricolor

Atriplex

Atro-

Atropa

Atrophy = Hypotrophy

Atropurpureus

Atrovirens

Atropous = orthotropous

Attachment = Spindle Attachment

Attachment constriction = spindle constviction

Attachment organ

Attenuate

Attraction particle = Centriole

Attraction sphere

Attraction spindle

Atypical

Aubrietia perviflora

Aulo-

Aulophyte

Aureus

Auricle

Auriculariaceae

Auriculariales

Auriculate

Aurofusarin

Auroglaucin

Austere

Australis

Austrobaileyaceae

Autchthonous

Autecology

Auteuform

Autoallogamy

Autobasidiomycete

Autobasidium

Autocarp

Autodeliquescent

Autoecious

Autogamy

Autoicous

Autolysis

Automixis

Autogenesis

Autonomic parthenocarpy

Autonomism

Autoparasite

Autoparthenogenesis

Autophyte

Autophagy

Auto polyploidy

Autopotamous

Autosome

Autospore

Autosteril

Autosyndesis

Autotetraploid

Autotroph

Autotrophy

Autotropism

Autotropic reversal

Autoxenous = Autoecious

Autumnal equinox

Aux-, Auxano-

Auxesis

Auxanogram

Auxanometer

Auxiliary cell

Auximones

Auxins

Auxithals

Auxocyte

Auxology

Auxotroph

Auxospireme

Auxospore

Available water

Avena

Average

Averrhoaceae

Averse

Aversion

Avicennia marina

Avoidance

Awl

Awn

Axeny

Axial

Axial cell

Axial field

Axial gradient

Axil

Axile

Axile chloroplast

Axial placentation

Axile strand

Axillar

Axillant

Axillary

Axis

Axospermous

Azolla

Axon

Azureus

Azygote

Azygospore

B

B'

Bacca

Baccacetum

Baccata

Bacciferous

Bacciform

Baccopa monnieri

Bacillar, Bacilliform

Bacillareae = Bacillariophyceae

Bacillariophyceae

Bacillus

Back bulb

Back cavity

Back cross

Bacteria

Bactericidal

Bacteriochlorophyll

Bacteriocin

Bacteriods

Bacteriology

Bacteriophage

Bacteriopurpurin

Bacteriorhiza

Bacterioscopy

Bacteriostatic

Bacterium

Baculae

Baculiform

Badious, Badius

Balance

Balanced lethal Lethal genes

Balanced medium, Balanced solution

Balanitaceae

Balanophoraceae

Balanopsidaceae

Balanopsidales

Ballistospore

Ballota

Balsamiferous

Balsaminaceae

Band

Banding

Band treatment

Band water

Bangiales

Bangioideae

Banner

Baphia

Baphicantus,-a, –um

Barb

Barbarea

Barbate

Barbatus,-a, –um

Barbed

Barbel

Barbeuiaceae

Barbeyaceae

Barbi-

Barbule

Bare

Bari-

Bark

Bark bound

Bark grafting

Bark inversion

Bark’s slipping

Barosma

Barrage

Barrage sexual

Barren

Baro-

Barometer

Basal

Basal body

Basal cell

Basal corpuscle = Basal body

Basal cuttage

Basal granule = Basal body

Basalis,-is,-e

Basal medium, Basic medium

Basal placentation

Basal plate

Basal walls

Base

Base exchenge

Base-exchange capacity

Base heat

Basellaceae

Base pair

Basi-

Basic dye

Basicidal

Basic number

Basichromatin

Basic type

Basidial

Basidiobolaceae

Basidiocarp

Basidiogenetic

Basidiolichenes

Basidiomycetes

Basidiophore

Basidiospore

Basidium

Basifixed

Basifugal = Acropetal

Basigamic = Basigamous

Basilar

Basilaris,-is,-e

Basilicus,-a,-um

Basin

Basinerved

Basin irrigation

Basipetal

Basitony

Basophilic

Basiscopic

Basitonic

Bass-fibre

Bass-wood = Bass-fibro

Bass-wood fibre = Bassffibre

Basophilic (e)

Basophilous

Bassia

Bast

Batch culture

Bathy-

Bathyphytium

Batidaceae

Batidales

Batideae = Batidaceae

Batidiaceae =Batidaceae

Batrachium

Baueraceae

Bauhinia purpurea

Beaded

Beaked

Beaker

Beard

Bearded

Bearing surface

Bearing wood

Bedding plants

Begoniaceae

Beidellite

Bellevalia

Bellis

Bell jar

Belt transect

Bench

Bench grafting

Bending

Bennettitales

Bent

Benthos

Berberidaceae

Berberidales

Berberideae = Berberidaceae + Lardizabalaceae

Berberis vulgaris

Bergia ammannioides

Berry

Berula angusfifolia

Beta

Betonica

Betula

Betulaceae

Between race

B horizon

Bi-, Bis-

Bialat(us, a, um)

Biannual bearing

Biannual harvesting

Biannual plant

Biarticulate

Biarum

Bias

Biatorine

Biaxial

Bibracteate

Bibulous

Bicalcarate

Bicalcaratus,-a,-um

Bicameratus,-a,-um

Bicapsular

Bicarpellary, Bicarpelate

Bicarpellatae

Biciliate = Biflagellare

Bicollateral bundle

Biconic

Biconjugate

Bicrenate

Bicuspid, Bicuspidate

Bidens

Bidens

Bidentate

Biebersteinia multifida

Bienertia cycloptera

Biennial

Biennis,-is,-e

Bifacial

Bifarious

Bifarius,-a,-um

Bifid

Biflagellatae

Biflagellate

Bifoliate, Bifolioate

Bifora

Bifurcate

Bigeminate

Bignomaceae

Bignoniales

Biguttulate

Bijugans, Bijugus, -a, –um

Bilabiate

Bilabiate deniscence

Bilateral symmetry

Bilocular

Bilinear

-bilis, -is, -e

Bilobate

Bimodal

Binary

Binate

Binomial nomenclature

Binucleolate

Binucleate

Bioassay

Bioblast = Chondriosome

Biocoenosis

Biocoenosium

Biocoenotic

Bioclimatic

Biofertilizer

Biogen

Biogenesis

Biogenetic law

Biogenous

Biological barrier

Biologic control

Biologic form = Biologic race

Biological specialization = Physibiogical speciation

Biological spectrum = Life form

Bioluminescence

Biomass

Biomass duration (BMD)

Biome

Biometer

Biometry

Bion, Biont

Bionomic

Biophagus = Biogenous

Biophilous = Biogenous

Biophore

Bioplasm = Protoplasm

Biosphere

Biosfactor

Bioseries

Biota

Biotic

Biotic adaptation

Biotic climax

Biotic factor

Biotin

Biotope = Biocoenosium

Biotype

Biparous

Bipartite

Bipinuate

Bipetalous

Bipinnatifid

Bipolar

Birefringence

Bisaccate

Biscutella didyma

Bisect

Biserrate

Biserial, Biseriate

Bisexual

Bisporangiate

Bisulcate

Bisymmetric

Biternate

Bitter pith

Bitunicate

Biunciate

Biuret test

Bivalent

Biverticillate

Bvalvate

Bixaceae

Bixales

Bixineae

Black earth = Chernozem

Blackman reaction

Black nose

Bladder

Blade

Blanching

Blast

-blast

Blastema

Blasteniospore

Blastic action

Blasto-

Blastochore

Blastochladiaceae

Blastochadiales

Blastogenesis

Blastocyst

Blastogenic

Blastomer

Blastoparenchymatous

Blastospore

Blattiaceae

Blechnum spicant

Bleeding

Bleeding pressure = Root pressure

Blemmatogen

Blending inheritance

Blepharis persica

Blepharoplast

Blight

Blind shoot

Bloom

Blossom

Blossom end

Blue-green algae = Myxophyceae = Cyanophyta

Blunt

BMD  Biomass duration

Body cell

Boerhavia

Bog

Bole

Boletaceae

Boletales = Boletineae = Boletaceae

Boll

Bolting

Bombacaceae

Bombax ceiba

Bombycine

Bombyx

Bondenergy

Bongardia chrysogonum

Bonnetiaceae

Bonsai

Booted = Peronate

Booting phase

Boraginaceae

Boraginales

Boragineae = Boraginaceae

Borago officinalis

Bordeaux mixture

Border parenchyma

Bordered pit

Boss

Bostryx = Helicoid cyme

Botany

Bothriochloa ischaemum

Bothrodendraceae

Botrychium

Botryoid = Botryose

Botryopteridaceae

Botryopteridineae

Botryose = Botryoid

Botryosphaeriaceae

Botrytic = Botryose

Botrytis

Bottom heat

Bottom yeast

Botuliform

Bougainvillea speetabilis

Boulder

Boulder clay

Bound

Boundary

Bound water

Bouquet stage

Bourgeon

Brace

Brachialis

Brachiate = Brachiferous

Brachy-

Brachyblast

Brachycladous

Brachyform

Brachymeiosis

Brachypodium

Brachysclereide = stone cell

Bracing

Bract

Bract scale

Bracteal leaf

Bracteate

Bracteody

Bracteol

Bracteomania

Bracteose

Brady-

Bradyauxesis

Bradyspore

Brak soil

Branch

Branch abscission

Branch gap

Branching

Branch trace

Brand spore

Brassica

Bravaisite

Breaking of meries

Breathing root

Breba

Breeder’s seed

Breeding

Brendile

Brevi-

Brevicidal dehiscence

Brevicollate

Bridge

Bridge grafting

Bridging host = Bridging species

Bristle

Bristly

Briza

Broad

Broadcost

Broad-leafed tree

Broad ray

Broken-bond water

Bromatia

Bromeliaceae

Bromeliales

Bromus

-bromus

Bronchonema

Brood Bud

Brood cell

Brood gemma

Broussonetia papyrifera

Brown algae = Phaeophyta

Brown earth

Brownian movement

Brown rot

Bruising

Brumalis

Brunelliaceae

Bruniaceae

Brunnera orientalis

Brunneus

Brunoniaceae

Bryales = Eubryales

Bryonia

Bryonia

Bryum

Bryophyta

Bryopsidaceae

B-spore = Beta spore

Bucephalus,-a,-um

Bucerus,-a,-um

Bucinalis,-is,-e; Bucinatus,-a, –um

Buckle = Clamp connection

Bud

Bud break, Bud burst

Budding

Buddleiaceae

Buddleja (Buddleia)

Budding, Bud grafting

Budding-off

Buffonia

Buginvillaea spectabilis

Bulb

Bulbaceous

Bulb chipping

Bulb cutting

Bulbel

Bulbi-, Bulbo-

Bulbil

Bulbillate