628 
INDEX 
Apetalous, 71, 76 
Apex of leaf, 53 
Apical placentation, 79, 82 
Apiculate (leaf-apex), 53 
Apocarpous, 70, 79, 82 
Apocp., apocarpous 
Apogamy, Filicineae Leptosporan- 
giatae 
Apogeotropic, 36 
Apopetalous, apetalous 
Apospory, Filicineae Leptosporan- 
giatae 
Apotropous, atropous, orthotro- 
pous 
Appendages (stamens), 78 
Apple, Pyrns ; alligator-, Anona 
palustris L. ; custard-, Anona\ 
elephant-, Feronia ; Kei -,Aberia\ 
love-, Lycopersicum ; Malay-, 
Eugenia ; May-, Podophyllum ; 
pine-, Ananas ; rose-, Eugenia\ 
star-, Chry sophy llum ; sugar-, 
Anona ; thorn-, Datura\ wood-, 
Feronia 
Appressed hairs, 53 
Apricot, Prunus ; San Domingo-, 
Mammea 
Aqueous tissue, 167, 175 
Arabin, 198 
Arar wood, Callitris 
Arborescens, arboreus (Lat.), tree- 
like 
Arborescent, tree-like, almost a 
tree 
Arboretum, collection of trees, 8, 6 
Arbor-judae, Cercis 
Arbor-vitae, Thuja 
Arbutus, trailing, Epigaea 
Arch., Archipelago 
Archaic genus, 120 
Archangel, Archangelica \ yellow-, 
Lamium 
Archegonium, 55, 80, Archegoni- 
atae , Filicineae Leptosporangi - 
atae , Pteridophyta 
Archesporium, Pteridophyta 
Archichl., Archichlamydeae 
Arctic plants, 180, 147, 148 
Arctic zone (H. C. Watson), above 
the cultivated limit 
Areas, specific, 147 
Arenarius (Lat. ), growing in sandy 
places 
Areole, Cactaceae 
Areschoug, F. W. C., 150, 154 
Argan oil, Argania 
Argenteus (Lat.), silvery 
Argillaceous (Lat.), growing on 
clay 
Aril, 106, nr 
Aristate, awned 
Arn., Arnott 
Amotto, Bixa 
Aroid house, 7 
Arrack, Cocos 
Arrangement (floral leaves), 69 ; 
(leaves), 51 
Arrow-grass, Triglochin 
Arrow-head, Sagittaria 
Arrow-root, Maranta ; Brazilian-, 
Manihot ; East Indian-, Cur- 
cuma , Tacca\ Portland -,Arum; 
West Indian-, Maranta 
Art., article 
Artichoke, Cynara\ Jerusalem-, 
Helianthus 
Articulate (leaf), 156, 53 
Articulated, jointed 
Artificial system of classification, 
121 
Artillery plant, Pilea 
Arum lily, Richardia 
Arundinaceous, reed -like 
Arvensis (Lat.), of arable land 
As., Asia 
Asafoetida, Ferula 
Asarabacca, Asarum 
Ascending aestivation, 75; ovule, 
82; stem, 44 
Asexual generation, 56 
Asexual reproductive cells, 54 
Ash, Fraxinus ; mountain-, Pyrus ; 
prickly-, Zanthoxylum', -pump- 
kin, Benincasa 
Asparagin, 34 
Aspen, Populus 
Asper (Lat.), rough 
Asphodel, Asphodelus ; bog-, Nar- 
thecium ; Scottish-, Tojieldia 
Assai palm, Euterpe 
Assegai-wood, Curtisia 
Assimilation, 33, 169 
