Bentham & Hooker, xxxii 
Betula alba, 65 
nana, xcii 
verrucosa, xcii 
Bibliography, 140, 141 
Binomial nomenclature, x 
Biographical Sketches of 
XXXV 
Dr Boswell, xliii, xlv 
Dr Clouston, xlvii-xlix 
Dr Duguid, xli-xliii 
Dr Fortescue, xlix, 1 
Mr R. Heddle, xxxviii- 
xli 
Rev. Geo. Low, xxxvii, 
XXXVill 
Mr Patrick Neill, xlv- 
xlvii 
DrWallace, xxxv, xxxvi 
Birch layers, xcili 
Bistort, 63, 64 
Blechnum spicant, 92 
Blindia, 114 
Blue lupins, 16 
Blysmus rufus, 82 
Boardhouse, Birsay, xxix 
Boswell, Dr, xxx, xliii, 
xliv 
Botanical classification, 
xii 
Botanical facts, lxiv 
Bo’ness, xli 
Botrychium incisum, 95 
lunaria, 95 
Boulder clay, lxxiii, lxxv, 
lxxvi 
Brachypodium 
cum, 91 
Brachythecium, 122 
Brassica arvensis, 6 
rapa, 6 
sylvestris, 6 
Breutelia, 119 
Briza media, 89 
Bromus glabrescens, 94 
~ hordeaceus, 90 
racemosus, 90 
secalinus, 90 
sterilis, 90 
velutinus, 90 
Bryacee, 119 
Bryum, 119 
Bunium flexuosum, 27, 28 
Buried Forests, lxxxv 
sylvati- 
Cc 
CAKILE MARITIMA, 6, 105 
Callitriche autumnalis, 25 
intermedia, 25 
polymorpha, 24 
stagnalis, 24 
vernalis, 24 
Calluna vulgaris, lvii, lix, 
45 
glabrata, 45 
INDEX. 
Caltha palustris, 4 
Campanula, lvi 
Camptothecium, 121 
Campylopus, 114 
Campylium, 123 
Capsella Bursa-pastoris, 7 
Cardimine flexuosa, 6 
hirsuta, 6 
pratensis, 5 
Carex ampullacea, 85 
arenaria, lx, 82 
binervis, 84 
dioica, 82 
distans, 84 
extensa, 84, 135 
flava, 84 
fulva, 135 
glauca, 83 
incurva, xxix, 82 
lepidocarpa, 84 
leporina, 83 
limosa, 84, lii 
minor, 135 
muricata, xxv, 83 
deri, 85, 135 
(docarpa, 135 
panicea, 84 
paniculata, 82 
pauciflora, 82 
pilulifera, 83 
pulicaris, 82 
rigida, xiv, 83 
rostrata, 85 
stellulata, 83 
sterilis, 84, 135 
verna, 83 
vulgaris, 83 
Carum ecarvi, 27 
Catabrosa aquatica, 88 
minor, 88 
Catharinea, 112 
Centaurea nigra, lvi, 40 
eyanus, 40 
Cerastium 
rum, 10 
tetrandrum, 10 
triviale, 11 
viscosum, 11 
Ceratophyllum demer- 
sum, 65 
Ceratodon, 113 
Charaaspera, xlviii,97,137 
atrovirens, 98 
baltica, 98 
barbata, 97, 137 
capillacea, 136 
delicatula, 97 
fragilis, 97, 136 
hispida, 95 
longibracteata, 98 
subinermis, 98, 137 
vulgaris, 98 
Charts of the North Sea, 
lxxxvi 
Cherophyllum temulum, 
29 
semidecand- 

143 
Chenopodium album, 61 
Chicory, 41 
Chrysanthemum leucan- 
themum, 36 
pyrethrum, 36 
segetum, 36 
Chrysosplenium, 26 
oppositifolium, 26 
Cichorium intybus, 41 
Circa alpina, xxi, 24 
Cladodium, 119 
Claytonia perfoliata, 15 
sibirica, 13 
Climate of Orkney, lv 
Climatic factors, lv 
Climate, variability of, 
xvii 
Climacium, 121 
Clubmoss, 95, $6 
Cnicus arvensis, 39 
argenteus, 39 
lanceolatus, 39 
palustris, 39 
setosus, 39 
Cochlearia alpina, 7 
Groenlandica, 7 
officinalis, 7 
Cold epochs, xciv 
Coleopterist, xliv 
Conglomerates of Strom- 
ness, Ixxix 
Conium maculatum, 30 
Convolvus arvensis, 50 
Co-related subjects, lv 
Cornus sneciea, 31 
Corylus avellana, xci, 65 
Crampton, Dr, Ixxxix, 
xcil 
Crepis biennis, 41 
eapellaris, 41 
niczensis, 130 
Cryptogamee, 92 
Cryptogamic flora 
Cylindrothecium, 121 
Cymbrifolia, 111 
Cynosurus cristata, 89 
Cystopteris fragilis, 93 
Cytisus scoparius, 16 
22) 
DACTYLIS GLOMERATA, 89 
Darwin, Chas., xvii, Ixvii 
Daucus carota, 29 
Deschampsia caespitosa, 
6 
flexuosa, 86 
Dichodontium, 113 
Dicotyledones, 1-68 
Dicranacee, 113 
Dicranella, 113 
Dicranum, 114 
Digitalis purpurea, xx, 
Dimorphous, lxvii 
Direction of ice, Ixxvi 
