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Dictionary: BOTANICAL & TECHNICAL TERMINOLOGY
Glossary of terms beginning with A

CACTUS ART
NURSERY

Cultivation and Mail Sale
of Cacti and Succulents.

 
 
A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z

A

Abaxial  (Synonym dorsal) [ Botany ]

Abbreviation (list of abbreviation used in this glossary)

Abiotic [ Ecology ]

Abnormal [ Biology ]

Aboveground [ Botany ]

Abscisic acid [ Plant physiology ]

Abscission [ Botany ]

Absorb - Absorption [ Physiology - Chemistry - Botany]

Absorbent roots [ Botany ]

Acanthoid [ Botany  ]

Acaricide [ Chemistry - Horticulture ]

Acarpous [ Botany ]

Accession [ Taxonomy ]

Accessory [ Botany ]

Accessory fruit [ Botany ]

Accessory tissue  [ Botany ]

Acclimatization [ Botany - Horticulture ]

Acicula - aciculate - acicular  [ Botany ]

Acicular leaf [ Botany ]

Acidic, Acidity [ Chemistry ]

Acidophilus [ Botany - Ecology ]

Actinomorphic [ Botany ]

Activation [ Biology ]

Active [ Biology - Physiology ]

Acuminate [ Botany ]

Acute [ Botany ]

Acyclic [ Botany ]

Adaptation [ Botany - Biology ]

Adaptive growth [ Ecology - Physiology ]

Adaxial (Synonym ventral) [ Botany ]

Adnate Adnation[Botany]

Adpressed (The same as: Appressed.) [Botany]

Adult [Biology]

Adult phase [ Botany ]

Advanced [ Biology ]

Adventitious/adventive [ Botany and Ecology ]

Adventitious buds [ Botany ]

Adventitious plant [ Botany ]

Adventitious root [ Botany ]

Aerating root [ Botany ]

Aerial  [ Botany ]

Aerial root  [ Botany ]

Aestivation [ Ecology - Botany ]

Affected [ Phytopathology ]

Affinis (abbreviation: aff. or affin.) [ Taxonomy ]

Age [ Biology ]

Agent [ Biology ]

Aggregate fruit [ Botany ]

Aggregate (of species) [ Taxonomy ]

Agronomy

Air

Air-borne [ Pathology ]

Air circulation in the soil [ Horticulture - Pedology ]

Air circulation in the atmosphere (Ventilation)  [ Horticulture - Ecology ]

Aizoaceae [ Botany ]

Albinos  [ Horticulture - Ecology ]

Alive [ Biology ]

Alkaline

Alkaloid [ Botany- Biochemistry ]

Allele [ Genetics ]

Allergenic [ Botany ]

Allopatric [ Biology - Ecology ]

Allotype [ Taxonomy ]

Aloacee see: Asphodelaceae  [ Botany - Taxonomy ]

Alternate [ Botany ]

Altitude Alt. (syn elevation)   [ Ecology ]

Amendant [ Biology - Agronomy - Morphology - Meteorology ]

Amorphous [ Biology - Agronomy - Morphology - Meteorology ]

Analogous [ Biology ]

Anastomosis [ Botany - Biology ]

Anatomy  [ Biology ]

Ancestor [ Biology ]

Ancestral [Biology]

Anchorage [ Botany ]

Anchoring roots [ Botany ]

Androecium [ Botany ]

Anemochory  [ Botany ]

Anemophily [ Botany ]

Angiospermae [ Botany ]

Animals [ Biology ]

Anisophyllous [ Botany ]

Annual [ Botany ]

Annual ring [ Botany ]

Annulate [ Botany ]

Annulus [ Botany ]

Ant [ Zoology ]

Ant pollination [ Botany ]

Ant dispersal [ Botany ]

Anther [ Botany ]

Antheridium (Plural: Antheridia) [ Botany ]

Anthesis [ Botany ]

Anthocyanin [ Botany - Phytochemistry ]

Antibody [ Biology ]

Anticryptogamic [ Phytopathology - Horticulture ]

Antifungal [ Phytopathology - Horticulture ]

Antigen [ Biology ]

Antimicotic  [ Phytopathology - Horticulture ]

Antimicrobial  [ Phytopathology - Horticulture ]

Apex [ Botany ]

Aphids  [ Horticulture - Phytoparasithology ]

Apical  [ Botany ]

Apical bud  [ Botany ]

Apical dominance [ Botany ]

Apical meristem [ Botany ]

Apiculate [ Botany ]

Apocynaceae syn: Asclepiadaceae [ Botany - Taxonomy ]

Apoplast [ Botany - Plant anatomy ]

Apocarpous [ Botany ]

Apparatus [ Botany - Biology ]

Application [ Biology - Horticulture]

Appressed  [ Botany ]

Approximate  [ Botany ]

Aqueous Adj. [ Botany ]

Arachnid [ Zoology ]

Arborescent (Syn: Arboreal)   [ Botany - Morphology ]

Areole [ Botany ]

Aridity Adj: Arid [ Biology - Meteorology ]

Aril [ Botany ]

Arista (Syn: Awn) [ Botany ]

Artic  [ Geography - Ecology ]

Articulate  [ Botany ]

Artificial

Artificial lights [ Horticulture ]

Ascending   [ Botany]

Asclepiadaceae (Apocynaceae) [ Botany - Taxonomy ]

Asclepiadaceae (Flower anatomy) [ Botany]

Asexual [ Biology ]

Aspect [ Ecology - Landscaping ]

Asperulous [ Botany ]

Asphodelaceae (syn: Aloacee - Liliaceae) [ Botany - Taxonomy ]

Association [ Ecology ]

Astomate [ Botany ]

Asymmetry [ Morphology ]

Atavism [ Biology ]

Atmosphere [ Biology - Meteorology ]

Atom [ Chemistry ]

Atrophy [ Biology - Phytopathology ]

Attack [ Phytopathology - Phytoparasitology ]

Attraction - attractant [ Botany - Ecology]

Auricle [ Botany ]

Author authority authorship [ Biology Taxonomy ]

Autochory  [ Botany ]

Autochthonous [ Biology ]

Autogamy [ Biology ]

Autotroph [ Biology ]

Autumn (fall) [ Botany - Agronomy - Climatology ]

Auxin [ Botany Physiology ]

Awl shaped [ Botany ]

Awn (see: Arista)  [ Botany ]

Axil [ Botany ]

Axillary [ Botany ]

Axillary bud    [ Botany ]

Axillary bud proliferation    [ Botany ]

Axillary shoot    [ Botany ]

axial symmetry [ Botany - Geometry ]

Axis [ Biology ]

Axis of growth [ Botany ]

 
 

 

 

1


 
 
 
 
Holdfast roots  [ Botany  ]

Dictionary of botanic terminology - index of names

 
     
  Some species of climbing plants develop holdfast roots which help to support the vines on trees, walls, and rocks. By forcing their way into minute pores and crevices, they hold the plant firmly in place.  
     
Climbing plants, like the poison ivy (Toxicodendron radicans), Boston ivy (Parthenocissus tricuspidata), and trumpet creeper (Campsis radicans),  develop holdfast roots which help to support the vines on trees, walls, and rocks. By forcing their way into minute pores and crevices, they hold the plant firmly in place. Usually the Holdfast roots die at the end of the first season, but in some species they are perennial. In the tropics some of the large climbing plants have hold-fast roots by which they attach themselves, and long, cord-like roots that extend downward through the air and may lengthen and branch for several years until they strike the soil and become absorbent roots.

Major references and further lectures:
1) E. N. Transeau “General Botany” Discovery Publishing House, 1994
   

 

 

 

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