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been erroneously determined, as Lycopodium clavatum, which is L. alpinum (see Newman, ‘Phytologist,' vol. i. p. 34, 1841), and hence not introduced into the Flora. I doubt not but that Briza media, Polygonum Bistorta, and Conium maculatum will hereafter be found to claim a place among the plants indigenous to Shetland. They are so to the Orkneys.

The second contribution to Shetland botany was also by Edmonston, and is entitled 'A Flora of Shetland, comprehending a List of the Flowering and Cryptogamic Plants, etc. It was published in 1845. In this volume I have still to complain of an indefiniteness as to locality, of an erroneousness as to frequency of occurrence, at least as applicable to the whole archipelago. Such conspicuous plants as Daucus Carota, “ abundant ;" Anthriscus vulgaris,“ abundant ;" Stellaria graminea, “ abundant," and others. Now, no one will admit that such established species could possibly have become extinct in so short a time ; however, I did not succeed in finding them. Yet still i admit the possibility of the fault being mine, from the limited time I spent on the islands, about four weeks in the months of June and July, 1865 ; and that botanical investigation was not the object of my visit there, but only followed as opportunities permitted. I, however, spent nearly two weeks in the island of Unst, the principal field of Mr. Edmonston's labours, with which his name will ever be associated, as the discoverer of three new forms upon it. In the islands of Uyea, Yell, I spent in all a week; the island of Bressa, the districts of Northmavin, Tingwall, and Lerwick were fairly worked by me, each area yielding me some new species. Hurried and casual as was the nature of my exploration, yet I was enabled to make many corrigenda and addenda to the Flora ; and as, also for some of the reasons above expressed, I am confident that a more extended research will be conferring a boon on botanical science by the addition of several species new to the Shetland list, and the authenticating of others, many of which are of a critical and interesting nature.

One inconvenience arising from the peculiar method of classification employed in the 'Shetland Flora,' apart from its inutility, is that some species are omitted in the general list, though mentioned in the preface; these are-Lotus corniculatus, p. xxiv. ; Alchemilla vulgaris, A. alpina, p. xiii.; Empetrum nigrum, p. xvii.; Sparganium, p. xii. ; Dianthus deltoides, Glechoma hederacea, and Gnaphalium supinum, p. xiii.

II. CATALOGUE OF THE PLANTS OF THE SHETLANDS. The followiug lists of Shetland plants are rearrangements of Mr. Edmonston's Flora, with which I have incorporated the new and corrected species; these latter are printed in italics. The sequence of the species is as in Babington's · Manual.' The species of Edmonston's Flora which I have authenticated have an asterisk prefixed, and, with but few exceptions, the species observed by me are now in the British Museum Herbarium. Additional localities of rare plants are added. The catalogue embraces two lists, the truly indigenous plants and the introduced plants, and such as concerning which there appears to be a doubt as to their correct determination. The altitudinal range is affixed to some species; thus, 70-100 (feet). The capitals O. and F. signify that the species occur in the Orkneys* or Feroes, † as the case may be. The letter I. is affixed to those Europo-American species which, though absent in the Feroes, occur in Iceland. I

List of Indigenous Plants. "Thalictrum alpinum. 0-1460; 0., F. |D. incana, B. confusa ; rocks, Muckle *Ranunculus Ficaria. 0., F.

Heog. 400-450. *R. Flainmula. 0., F.

*Cochlearia officinalis. 0., F. *R. Flammula, B reptans.

*C. officinalis, B. alpina. 450. *R. acris. (., F.

C. Danica. 0., F. *R. repens. 0., F.

*Capsella Bursa-pastoris. 0., F. *Caltha palustris. 0. F.

*Cakile maritima. O., F. Trollius Europæus.

Raphanus Raphanistrum. 0. Nymphæa alba.

Viola palustris ; bogs, Bressay, Unst, *Papaver dubium. O.

Yell, etc. O., F. P. Rhoas. 0.

*V. Hiviniana (V. canina, Edmonst.). Glaucium luteum.

0., F. *Fumaria officinalis. 0.

*V. tricolor. 0., F. * Arabis petræa. 50–80; F.

*V. arvensis. Cardamine hirsuta. O., F.

*Drosera rotundifolia. 0., I. *C. pratensis. 0., F.

D. Anglica. O., I. *Sinapis arvensis. 0.

| *Parnassia palustris. O., I. *Draba incana. 0., F.

| *Polygala vulgaris. 0., F. D. incana, a. contorta ; Springfields and P. vulgaris, B. depressa (the more Muckle Heog, Unst. 50–450. I common).

* H. C. Watson, “Florula Orcadensis,” Journ. Bot., No. 13, January, 1864, p. 11.

C. H. Martins, · Végétation de l'Archipel des Féroe.' I c. C. Babington, “ List of Iceland Plants,” Ann. and Mag. Nat. Hist. vol. xx. p. 30, July, 1847.

"This is a curious little plant. It may be the V. vivariensis, Jord. ; its stipules are remarkably simple" (C. C. Babington).

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* The leaves are more entire than in any setosus that I have seen ; it is an interesting plant. (C. C. B.)

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