PINGUICULA LUSITANICA. PALE BUTTERWORT.
PINGUICULA lusitanica; nectario deflexo obtuso corolla breviore, limbo subtequali, scapo pubes-
cente, capsula sphserica.
PINGUICULA lusitanica. s Linn. Sp. PI. p. 25. “ Huds. Angl. ed. 1. p. 7.” With. Bot. A rr. ed. 4.
vol. 2. p. 17. Willd. Sp. PI. vol. l .p . 110. Smith FI. B rit. p. 26. Engl. Bot. 1. 145.
Pers. Syn. PI. ml. 1 . p . 17. Ait. Hort. Kew. ed. 2. ml. 1. p. 44. Hook. FI. Scot.
P . l . p . 8. '
PINGUICULA villosa. Light/. Scot. p . 77. t. 6.
PINGUICULA flore minore carneo. Butterwort, with a small flesh-colored flower. Dill, in Raii
Syn. p. *281.
Class an d Ord e r . DIANDRIA MONOGYNIA.
[Natural Ord e r . LENTIBULARIÆ, Juss. in Ann. du Mus., Brown, Hook. UTRICULINÆ, Hoffm.
8s Link. LYSIMACHIÆ PARS, Juss.]
Ge n . Ch a r. Calyx quadri-quinquefidus. Corolla ringens, calcarata. Capsula unilocularis.
G e n . Ch a r . Calyx four- or five-cleft. Corolla ringent, spurred. Capsule one-celled.
Radix parva, perennis, fibrosa.
Folia radicalia, stellatim disposita, cordato-ovata, pe-
tiolata, ienuia, subpellucida, integerrima, mar-
gine insigniter incurvo, paflide flavo-viridia, venis
purpurascentibus picta, superne paululum pilosa,
inferne glabra ; Petiolus dilatatus, pallidus, superne
pubescens, margine ciliatus.
ScAPf subtripollicares, plerumque tres vel quatuor ex
éadetn plan tula, erecti, flexuosi, pubescentes,
versus apicem curvati, purpureo-virides.
Flores cernui.
Calyx bilabiatus, labio superiore trifido, inferiore bi-
fido, raro integro ; segmentis ovato-lanceolatis,
obtusis, extus pubescentibus.
Corolla subpubescens, tubulosa, tubo luteo, venis ru-
bris eleganlissime picto, intus piloso, palato prominente
albo, inferne calcare deflexo obtuso pallide
purpurascente, corolla breviore, desinente ;
superne limbo quinquelobo, lobis subæqualibus
patentibus obtusissimis fere retusis pallide purpurascentibus.
Stamina PiSTiLLUMque ut in P . vulgare.
Capsula calyce persistente cincta, sphærica, glabrius-
cula, stylo terminata, bivalvis, unilocularis.
Semina numerosa, fusca.
I Root small, perennial, fibrous.
Leaves all springing from the root, arranged in a star-
like form, between cordate and ovate, petiolate,
very thin, almost transparent, entire, their margin
remarkably incurved, of a pale yellow-green,
marked with purple lines, above a little hairy,
beneath glabrous; Petiole dilated, pale, pubescent
upwards, ciliated at the margin.
Flower-stems about three inches high, generally growing
three or four from the same plant, erect, flex-
uose, downy, curved upwards, of a purplish-green
, hue.
F lowers nodding.
Calyx two-lipped, the upper lip trifid, the lower one
bifid, rarely entire; the segments ovato-lanceo-
late, obtuse, externally pubescent.
Corolla slightly downy, tubular, the tube yellow, elegantly
streaked with red veins, hairy within, with
a prominent white palate, ending beneath in an
obtuse, deflexed, pale-purple spur, which is shorter
than the corolla; above having the limb five-
lobed, with the lobes nearly equal, patent, very
obtuse, almost retuse, pale-purple.
Stamens and Pis t il like those of P . vulgare.
Capsule surrounded with the persistent calyx, spherical,
almost glabrous, terminated by the style, bi-
valved, one-celled.
Seeds numerous, brown.
« 2. Hairs o f the same. Fig. 3. Single flower. Fig. 4. Flower deprived of its corolla,
•fh’ Stamen. Fig. 6. Pistil. Fig. 7. Corolla,- partly cut open to show the palate. Fig. 8. Hair from
wi nn the tube. Fig. 9. Section of a germen, to show the receptacle and the insertion of the seeds upon it.
xig. 10. Capsule, with its valves opening:—all more or less magnified.
.. ere C^P. 9° difficulty in distinguishing this species of Butterwort from the two other British individuals of
fin*5 P*nguicula (P . vulgaris and P . grandifiora) : the diminutive size of the present plant, the colour of its
hITti13’« 16 T nin§ leaves> would at once determine it, even were other more material characters wanting;
T 6 **[s^d|Scoverer of P . lusitanica in this country confounded it with the P . villosa of Linnaeus’s Lapland
our, which, besides possessing a differently-formed nectary, has a capsule, as Sir James Smith remarks, inversely
heart-shaped and compressed, instead of being globular.
It grows in wet swampy grounds on the south-west coast of Britain, especially in Devonshire and Cornwall;
ah abu"dantly *n the north-west of Scotland. I have found it in the greatest profusion in the country
■ °,u Lape Wrath in Sutherland. In Ireland, too, it is very frequent. The specimen here figured was gathered
m the isle of Arran, flowering in August 1823. s s