650 
INDEX 
A., Androeceum 
A (flower class), 89 
A- (Gr. pref.), not 
AB (flower class), 90 
Abaca, Manila hemp, Musa 
Abaxial (side), away from axis 
Abbreviated, shortened 
Aberrant, differing from type 
Abnormal thickening, 173 
Abiogenesis, spontaneous genera- 
tion 
Abortion, 31, 70; (bud), 155 
Abrupt, terminating suddenly 
Absciss-layer, 156, 53 
Absinthe (Fr.), Artemisia 
Absorption, 33, 38, 47, 144, 159, 
164, 169, 176 
Abt., about 
Abundance (Cl.), the total number 
of individuals in an area 
Acacia, false, Robinia 
Acajou (W. I.), Guarea trichi- 
lioides L. 
Acaju = Cashew 
Acantho- (Gr. pref.), thorny 
Acanthocarpous, spiny-fruited 
Acarodomatia, mite-domatia, 114, 
Anamirta 
Acaulescent, almost stemless 
Acaulis (Lat.) stemless 
Accessory branch, 42 ; buds, Ara- 
ceae ; organs, 67 
Accidental transport, 146 
Acclimatisation, 144 
Accrescent, 77 
Accumbent, Cruciferae 
Aceituna, Symplocos 
Acerose, needle-shaped 
-aceus (Lat. suff), -like 
Ach., achene, 107, 108, no 
Achlamydeous, 76 
Acicular, needle-shaped, 52 
Acies, the edge 
Acinaciform, scimitar-shaped 
Acorn (W. I.), Dioscorea bulbifera 
L. 
Aconite, Aconiturn ; winter-, 
Eranthis 
Aconitin, Aconiturn 
Acorn, Quercus 
Acquired characters, non-heredi- 
tary, arising in the life-time of 
the organism 
Acranthous, Orchidaceae 
Acrocarpous, with terminal fruit 
Acrogens, ferns and mosses 
Acrogamic fertilisation, 81 
Acotyledons, cryptogams 
Acropetal, produced in succession 
towards the apex 
Acrophytium (Cl.), alpine plant 
formation 
Acroscopic, facing the apex 
Acrotonic, Orchidaceae 
Actad (Cl.), plant of a rocky sea 
shore 
Actinomorphic, 31, 73, 74, 76 
Actium (Cl.), rocky sea-shore for- 
mation 
Aculeate, aculeatus (Lat.), prickly 
Acuminate (leaf), 53 
Acute (leaf-apex), 53 
Acutifolius (Lat.), with pointed 
leaf 
Acyclic, not in whorls, 69 
-ad (Cl.), suffix denoting an ecad 
Adam’s needle, Yucca 
Adans., Adanson 
Adaptable (Cl.), able -to originate 
ecads 
Adaptation, 25, 26 
Adaxial (side), towards the axis 
Adder’s tongue, Ophiogiossutn 
Aden- (Gr. pref.), a gland 
Adenoid, gland-like 
Adenophore, stalk supporting a 
gland 
Adhesion, 70, 123 
Adjustment (Cl.), functional re- 
sponse to stimuli 
Adnascens (Lat.), growing on 
something 
Aanate, united by whole surface ; 
-anthers, 78; -stipule, 51 
Adnation, 42, 65, Araceae, So- 
lanaceae 
Adpressed, appressed 
Adruc (W. I. j, Cyperus articulatus 
L. 
Aduncate, bent like a hook 
Adventitious (Cl.), invading from 
distant formations ; -embryos, 
