626 
INDEX 
A., androeceum 
A (flower class), 89 
A- (Gr. pref.), not 
AB (flower class), 90 
Abaca, Manila hemp 
Abaxial (side), away from axis 
Aberrant, differing from type 
Abnormal thickening, 173 
Abortion, 31, 70 
,, (bud), 155 
Abrupt, terminating suddenly 
Absciss-layer, 156, 53 
Absorption, 33, 38, 47, 144, 159, 
164, 169, 176 
Abt., about 
Abyss., Abyssinia 
Acacia, false, Robinia 
Acantho- (Gr. pref.), thorny 
Acarodomatia, mite-domatia, 115 
Acaulescent, almost stemless 
Acaulis (Lat.), stemless 
Accessory branch, 42 
,, organs, 67 
Accidental transport, 146 
Acclimatisation, 144 
Accrescent, 77 
Accumbent, Cruciferae 
Achene, 107, 108, no 
Achlamydeous, 76 
Acicular, 52 
Aconite, Aconitum ; winter-, Eran- 
this 
Aconitin, Aconitum 
Acorn, Querc?is 
Acranthous, Orchidaceae 
Acrocarpous, with terminal fruit 
Acrogamic fertilisation, 81 
Acropetal, 88 
Acroscopic, facing the apex 
Acrotonic, Orchidaceae 
Actinomorphic, 31, 73, 74, 76 
Aculeate, prickly 
Aculeatus (Lat. ), aculeate 
Acuminate (leaf), 53 
Acute (leaf apex), 53 
Acyclic, 69 
Adam’s needle, Yucca 
Adans., Adanson 
Adaptation, 25, 26 
Adaxial (side), towards the axis 
Adder’s tongue, Ophioglossum 
Aden- (Gr. pref.), a gland 
Adhesion, 70, 123 
Adnate anthers, 78 
,, stipule, 51 
Adnation, 42, 65, Solanaceae 
Adventitious embryos, 106, Al~ 
c home a, Funkia, Nothoscordum 
Adventitious roots, 39, 40, 152, 
174; shoots, 44 
Aerating roots, 161, 40, 191 
Aerenchyma, 16 1 
Aerial roots, 40 
Aerophytes, epiphytes 
Aestivalis (Lat.), of summer 
Aestivation, 75, 77, 84 
Affinity, 12 1 
Afr., Africa 
African rubber, Landolphia 
Agents effecting geographical dis- 
tribution, 142 seq. 
Agents effecting pollination, 58 
Aggregate fruit, 107, 109 
Agrestis (Lat.), growing in fields 
Agrimony, Agrimonia ; hemp-, 
Eupatorium 
Agrostology, study of grasses 
Air-plants, epiphytes 
Air-spaces, 182 
Ait., Aiton 
Akee, Blighia sapida 
Alabastrum (Lat.), flower bud 
Alae, Leguminosae , Polygalaceae 
Alatus (Lat.), winged 
Album., albuminous 
Albumen, 105 
Albuminoids, proteids 
Albuminous seeds, 105 
Alburnum, 158 
Albus (Lat.), white 
Alder, Alnus ; -buckthorn, Rham- 
nus 
Aleurone, proteid, in seeds 
Alexanders, Smyrnium 
Alfa, Esparto ( Stipa ) 
Alfalfa, Medicago 
Algae, sea and pond weeds, 124 
Algaroba, Ceratonia, Prosopis 
-alis (Lat. sufif.), belonging to 
Alizarin, Rubia 
Alkaloids, 202, 34, Aconitum 
Alkanet, Alkanna 
