Ranunculus—contd. 
sceleratus, 3 
Steveni, 3 
trichophyllus, 2 
vulgatus, 3 
Raphanus raphanistrum, 
6 
Reid, Clement, Ixxxv 
Rhacomitrum, 115 
Rhinanthus Crista-galli, 
53 
major, 53 
stenopterus, 53 
Rhodobryun, 120 
Robson, Mr, xxx 
Rodents, Ixxxvii 
Rousay, xxiii 
Rosa canina, 22, 128 
cerulea, 21 
Crepiniana, 129 
dumalis, 22 
glauca, 129 
lutetiana, 22 
mollis, 21 
Reuteri, 22 
spherica, 128 
subcristata, 22 
subglobosa, 22 
tomentosa, 21 
Rowan tree, 21 
Rubus fissus, 21 
saxatalis, 21 
Rumex acetosa, 62, 103 
acetosella, 62, 103 
acutus, 62 
angiocarpus, 62 
aquaticus, 62 
crispus, 62 
obtusifolius, 62 
sauguineus, 62 
subsordatus, 62 
triangulatus, 62 
Ruppia rostellata, 73 
nana, Ixi, 74 
spiralis, 73 
Ss 
SAGINA MARITIMA, 12 
debilis, 12 
glandulosa, 12 
nodosa, 12 
procumbens, 12 
spinosa, 12 
Salicornia herbacea, 61 
procumbens, 61 
Salix acuminata, 67 
ambigua, 67 
angustifolia, 67 
aquatica, 66 
arbuscula, xciii, 67 
aurita, 66 
caprea, 66 
cinerea, 66 
fusca, 67 
herbacea, xc, xcii, 67 
INDEX. 
Salix—contd. 
lapponum, 67 
myrsinites, 67 
nigricans, 67 
parvifolia, 67 
phylicifolia, 66 
repens, 67 
reticulata, xc, xcili, 67 
Salsola kali, 60 
Sambucns ebulus, 31 
nigra, 31, 100 
Saussurea alpina, 40 
Saxifraga aizoides, xxix, 
26 
aurantia, 26 
hypnoides, 26 
oppositifolia, 25 
stellaris, xx, 25 
Scabiosa arvensis, 34 
suecisa, 34 
Secandix Pecten-Veneris, 
30 
Sclerochloa distans, 89 
maritima, 88 
| Scheenus nigricans, 80 
| nana, 80 
Scilla verna, 77 
| Scirpus cepitosus, 81 
fluitans, $1 
| lacustris, 81 
pauciflora, xx, 81 
| setaceus, 81 
| Tabernemontani, 
81 
Scrophularia, nodosa, 50 
|Seutellaria galericulata, 
55 
Sedum acre, 25 
roseum, 25 
Selaginella selaginoides, 
96 

x, 
Senecio aquaticus, 38 
flosculosus, 38 
Jacobea, 38 
sylvaticus, xlviii, 38 
viscosus, 38 
vulgaris, 38 
| Sherardia arvensis, 33 
Shetland, xix, lxxxvii, xc 
Sieglingia decumbens, 88 
Silene acaulis, xiv, 19 
cucubalus, 19 
maritima, 19 
Sison amomum, 27 
Sium angustifolium, xxi 
erectum, 28 
Sisymbrium officinale, 5 
Thalianum, 5 
Soil formation, lxxiii 
Solidago virgaurea, 34 
cambrica, 34 
Sonchus arvensis, 44 
asper, 44 
oleraceus, 44 
Sowerby’s ‘‘ English 
Botany,” xliv 

147 
Sparganium affine, 69 
erectum, 69 
microcephalum, xxix, 
xlvii, 69 
simplex, 69 
Sperguleria marina, 13 
neglecta, 12 
marginata, 128 
rubra, 12 
salina, 12, 128 
Spence, John, xxxii, liv 
Spergula arvensis, 12, 103 
sativa, 12, 103 
Sphagnum xcii, 11) 
Spirea ulmaria, 19 
Stachys arvensis, 55 
ambigua, 55 
canescens, 55 
palustris, 55 
sylvatica, 55 
Statice maritima, 59, 101 
planifolia, 59 
Stellaria apetala, 11 
graminea, 11 
media, 11, 100 
uliginosa, 11 
umbrosa, 11 
Stromness beds, ]xxi 
Stromness flags, Ixix 
| Stromness granite, lxx 
| Sueda maritima, 60 
Subsecunda, 111 
Sunshine means, xvi 
Survival of the fittest, 

xviii 
|\Syme, Dr J. T. B., xiii, 
xliv 
Submergence, Ixxxiii 
Supplement to Mosses, 
125 
Supplement to Flora, 127- 
137 

Swanbister, xlix 
Symphytum officinale, 57 
patens, 57 
pa Ba 
TANACETUM VULGARE, 37, 
103 
Taraxacum erythro- 
sperum, 43 
officinale, 43, 190 
palustre, 43 
udum, 44 
Temperatures, xvi, xix, 
lvi 
Temperature, mean, XVi 
Tetraplodon, 118 
Teucrum scorodonia, 56, 
102 
Thalaspi aruense, 7 
Thalictrum alpina, xiv, 1 
dunense, 1 
Thuidium, 121 
Thrum-eyed, lxvii 
