A
A
- Abelia
- Abies
- Abobra
- Abroma
- Abronia
- Abrus
- Abuta
- Abutilon
- Acacia
- Acalypha
- Acanthomintha
- Acanthopanax
- Acanthus
- Acer
- Achillea
- Achimenes
- Acineta (From akineta immovable the lip)
- Acineta (This genus comprises about)
- Aciotis
- Aciphylla
- Acis
- Acisanthera
- Acmadenia
- Acmena
- Aconitum (According to Bentham)
- Aconitum (From Aconae or Acone a harbour)
- Acorus
- Acradenia
- Acriopsis
- Acroclinium
- Acrocomia
- Acronychia
- Acrophyllum
- Acrostichum (From akros outermost)
- Acrostichum (Species number upwards)
- Acrotriche
- Actaea
- Actinidia
- Actiniopteris
- Actinocarpus
- Actinomeris
- Actinotus
- Ada
- Adamia
- Adansonia
- Adelobotrys
- Adenandra
- Adenanthera
- Adenanthos
- Adenium
- Adenocalymna
- Adenocarpus (From aden a gland and karpos)
- Adenocarpus (This genus embraces eight)
- Adenophora
- Adesmia
- Adiantum
- Adina
- Adlumia
- Adonis
- Aechmea (From aichme a point)
- Aechmea (Including Macrochordium This)
- Aegiphila
- Aegle
- Aeolanthus
- Aeranthus
- Aerides (From aer the air in reference)
- Aerides (To the species described on pp)
- Aeschynanthus
- Aeschynomene
- Aesculus
- Aethionema
- Africa
- Afzelia
- Agalmyla
- Aganisia
- Agapanthus
- Agapetes
- Agaricus
- Agathaea
- Agathophyllum
- Agathosma
- Agati
- Agave
- Ageratum
- Aglaia
- Aglaonema
- Agonis
- Agrimonia
- Agrostemma
- Agrostis
- Ailantus
- Ainsliaea
- Aira
- Aitonia
- Aizoon
- Ajuga (From a not and zugon a yoke)
- Ajuga (Species of this genus number)
- Akebia
- Alangiaceae
- Albizzia
- Albuca (About thirty species are known)
- Albuca (From albicans or albus white)
- Alchemilla
- Aletris
- Aleurites
- Alhagi
- Alibertia
- Alicante
- Alisma
- Allamanda (Dozen species have been)
- Allamanda (Named in memory of Dr Allamand)
- Allantodia
- Allium
- Alloplectus
- Allotment Gardens
- Almeidea
- Alnus
- Alnwick Seedling
- Alocasia
- Aloe
- Alomia
- Alona
- Alonsoa
- Aloysia
- Alpine Garden
- Alpinia
- Alseuosmia
- Alsodeia
- Alsophila (From alsos a grove and philos)
- Alsophila (Upwards of ninety species have)
- Alstonia
- Alstromeria
- Alyssum
- Amarantaceae
- Amarantus
- Amaryllis
- Amasonia
- America (Flowers yellow)
- America (Stove species SYNS)
- America (To those described on p Vol I)
- America and Mexico
- America – August
- Amerimnum
- Amherstia
- Amicia
- Ammobium
- Ammodendron
- Amomum
- Amorpha
- Amorphophallus
- Ampelideae
- Amphicarpaea
- Amphicome
- Amphilophium
- Amyris
- Anacampseros
- Anacardium
- Anacyclus
- Anaectochilus
- Anagallis (From anagelas to laugh)
- Anagallis (This genus embraces about)
- Anagyris
- Ananas
- Ananassa
- Anantherix
- Anarrhinum
- Anastatica
- Anchietea
- Anchomanes
- Anchusa
- Andersonia
- Andira
- Androcymbium
- Andromeda
- Andropogon
- Androsace (From aner a man and sakos)
- Androsace (This genus embraces about)
- Androstephium
- Andryala
- Aneilema
- Anemia
- Anemone (From anemos wind the greater)
- Anemone (Seventy species comprised)
- Anemonopsis
- Angelica
- Angelonia
- Anger's Frontignan
- Angiopteris
- Angophora
- Angraecum (Deduced from angurek a Malayan)
- Angraecum (Species of this genus number)
- Anguloa (Commemorative of Angulo)
- Anguloa (Peruvian and Colombian Andes)
- Anigozanthus
- Anisochilus
- Anisomeles
- Annuals
- Anomatheca
- Anonaceoe
- Ansellia
- Anthericum
- Anthoxanthum
- Anthriscus
- Anthurium
- Anthyllis
- Antigonon
- Antirrhinum
- Antrophyum
- Ants
- Aotus
- Apeiba
- Aphelandra (From apheles simple and aner)
- Aphelandra (This genus nearly fifty)
- Aphyllanthes
- Apicra
- Apios
- Aplectrum
- Apocynaceae
- Apocynaceoe
- Apocynum
- Aponogeton (From apon Celtic for water)
- Aponogeton (This genus comprises about)
- Apple (ORD Anonaceae Stove evergreen)
- Apple (Pyrus Malus The Apple is one)
- April (If a pit be used it should be)
- April (L all stalked ternate segments)
- April (L cordate flat striated below)
- April (L phyllodia obliquely)
- April (L somewhat imbricate linear)
- April (L two or three together erect)
- April and May
- Aquilegia
- Arabis
- Arachis
- Arachnanthe
- Arachnis, Argemone Hispida & Asagraea
- Aralia (Meaning unknown ORD Araliaceoe)
- Aralia (Thirty species comprised)
- Araucaria (From Araucanos its name)
- Araucaria (Known species of this genus)
- Arauja
- Arbutus
- Archipelago
- Arctostaphylos
- Arctotheca
- Arctotis (From arktos a bear and ous)
- Arctotis (This genus embraces thirty)
- Ardisia (From ardis a point)
- Ardisia (This genus there are about)
- Arduina
- Areca
- Arenaria (From arena sand in which most)
- Arenaria (Species of this genus)
- Arethusa
- Argania
- Argemone
- Argyreia
- Argyrorchis
- Argyroxyphium
- Arisaema (Fifty species of this genus)
- Arisaema (From Aron Arum and sana)
- Arisarum
- Aristea (From arista a point or beard)
- Aristea (This genus embraces about)
- Aristolochia (About species are included)
- Aristolochia (From aristos best and locheia)
- Aristolochiaceae
- Aristotelia
- Armeniaca
- Armeria (According to some authors)
- Armeria (From Flos Armerioe Latin name)
- Arnebia
- Arnica
- Aroideae (Araceae A curious half-hardy)
- Aroideae (Araceae Flowers densely)
- Arpophyllum
- Arracacha
- Arsenic
- Artabotrys – Ancectochilus
- Artanema
- Artemisia
- Artocarpus
- Arum
- Arundina
- Arundinaria
- Arundo
- Asclepias
- Ascyrum
- Ashes
- Asia Minor
- Asimina
- Aspalathus
- Asparagus (From a intensive and sparasso)
- Asparagus (Officinalis AS A VEGETABLE)
- Asparagus (This genus comprises nearly)
- Aspasia
- Asphalt
- Asphodeline
- Asphodelus (From a not and sphallo)
- Asphodelus (Six or seven species of this)
- Aspidistra
- Aspidium (From aspidion a little buckler)
- Aspidium (This cosmopolitan genus)
- Asplenium (From a not and splen spleen)
- Asplenium (Nearly species of this genus)
- Assonia
- Astelma
- Astephanus
- Aster (From aster a star general)
- Aster (Including Calimeris There)
- Astilbe
- Astrapaea
- Astrocaryum
- Astroloma
- Asystasia
- Atalantia
- Athanasia
- Atherosperma
- Athrotaxis
- Atragene
- Atraphaxis
- Atriplex (About species of herbs)
- Atriplex (From a not and traphein)
- Atropa
- Attalea
- Aubrietia
- Aucuba
- August (L lanceolate narrowed at base)
- August (L lanceolate roughish somewhat)
- August (L oblong-lanceolate scabrous h)
- August (L ovate-globose gibbous)
- August (L radical ones petiolate)
- August (L roundish Habit dwarf tufted)
- August (L sessile feather-nerved h ft)
- August (L setaceous fasciculate)
- August (L with trapeziform pinnate)
- August and September
- Aulax
- Auricula (During the last few years)
- Auricula (Primula Auricula This)
- Australia
- Autumn
- Auvergne Frontignan
- Avenues
- Averrhoa
- Azalea (From azaleos dry arid)
- Azalea (To the species and varieties)
- Azara