Their colour is, however, more broken and less
characteristic than that of the following species.
2. Pinguicula Violacea: Violet-coloured Butterwort, (instead of
'vulgaris,') the common English and Swiss kind above noticed.
3. Pinguicula Alpina: Alpine Butterwort, white and much smaller than either
of the first two families; the spur especially small, according to D. 453.
Much rarer, as well as smaller, than the other varieties in Southern
Europe. "In Britain, known only upon the moors of Rosehaugh, Ross-shire,
where the progress of cultivation seems likely soon to efface it."
(Grindon.)
4. Pinguicula Pallida: Pale Butterwort. From Sowerby's drawing, (135, vol.
iii,) it would appear to be the most delicate and lovely of all the group.
The leaves, "like those of other species, but rather more delicate and
pellucid, reticulated with red veins, and much involute in the margin. Tube
of the corolla, yellow, streaked with red, (the streaks like those of a
pansy); the petals, pale violet. It much resembles Villosa, (our Minima,
No. 5,) in many particulars, the stem being hairy, and in the lower part
the hairs tipped with a viscid fluid, like a sundew. But the Villosa has a
slender sharp spur; and in this the spur is blunt and thick at the end."
(Since the hairy stem is not peculiar to Villosa, I take for her, instead,
the epithet Minima, which is really definitive.)
The pale one is commonly called 'Lusitanica,' but I find no direct notice
of its Portuguese habitation.
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