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(7) Sillimans N. Am. Journal. Vol IV. p. 119

"Notes on a Tour to Madeira by Dr. Vogel (from London Journ. Bot. March 1847 p. 125.)

Madeira. 672. ft & ferns plants; of which 85 peculiar = 192 non European plants

480 European, 280 in common with Azores 312 in common to Canaries -

N.B. Azores has altogether 425 plants of which we have see 280 common to Madeira, ie above half

(It is remarkable Gibraltar which has 456 plants only 170 common to Madeira, for it was natural to suppose that th majority of the 480 widely distributed S. European plants which are common to Madeira, wd. by way of Gibraltar if transported across the ocean.

The Azores & Canaries contain a greater proportion of the Mediterranean plants, seen in Madeira than does Gibraltar.)

A considerable number of the Madeira plants belong to

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(8) Genera confined to that isld Azores & Canaries - The Helichrysa of Madeira are allied in rather a remarkable degree to the S. African species of that genus, which reminds is that Myrsine Africana of the C. of Good Hope is found in Azores

The Mediterranean plants in Madeira are not characterised by being those most easily transported. Argues against Forbes if these 3 islands had once formed part of continent, more species peculiar wd have been in common, instead of representative species, which is th main bond of affinity. Many not quadruped argument is strongest. Study maps about distance, to see how much identity might be expected.

I think this article must be by Hooker

[J. R. T. Vogel. 1847. Notes on a tour to Madeira, Teneriffe and Cape Verds, etc. American journal of science and arts, series 2, vol. 4: 119-130.]