Pinguicula longifolia subsp. longifolia

TaxonomyPermalink

• Family: Lentibulariaceae
• Genus: Pinguicula
• Name: Pinguicula longifolia subsp. longifolia
• Sub-classification (Casper): link
• Publication: Ram. ex DC., Flore de France 3 (1805) 728.

Description (in Casper)Permalink

Perennis. Rhizoma simplex breve, radicibus adventitiis numerosis filiformibus. Folia 5 - 11 radicalia rosulata integerrima uniformia erecta maxima elongata in petiolum alatum attenuata margine undulata superne glanduloso-viscosa glandulis sessilibus stipitatisque dense vestita (25) 60 - 130 (175) mm longa (8) 10 - 20 (22) mm lata laete viridia. Hibernacula; gemmae. Pedicelli 1 - 5 erecti glandulis stipitatis disperse obtecti (45) 70 - 130 (146) mm alti folia pro tertia parte excedentes uniflori. Flores maximi (20) 30 - 40 (46) mm longi (calcari incluso). Calyx bilabiatus extus glandulis stipitatis disperse obsitus; labium superum trilobum lobis conspicuis elliptico-ligulatis apice rotundatis basin versus plus minusve angustatis +/- 5 mm longis; labium inferum bilobum lobis usque ad dimidium longitudinis bilobum. Corolla bilabiata lilacina vel caerulea extus glandulis stipitatis disperse obsita; labium superum bilobum lobis ovato-obtusis, labium inferum multo longius trilobum lobis obovato-cuneatis inter se plus minusve tegentibus apice plane retusis tubo duplo longioribus 15 mm longis 12 ll latis albido-maculatis. Tubus infundibuliformis brevis latissimus intus pilosus pilis longis cylindricis. Calcar cylindrico-subulatum rectum vel subincurvum (7) 10 - 16 (24) mm longum tubum limbumque corollae subaequens ex caeruleo in viridem vergens. Stamina +/- 2 mm longa. Ovarium subglobosum glandulis stipitatis dense obsitum. Stigma bilabiatum labio infero flabelliformi fimbriato. Capsula ovoideo-subglobosa, calycem vix superans. Semina scobiformia cylindrica +/- 1 mm longa +/- 0.2 - 0.4 mm lata alveolata.

Chromosomata 2n = 32

Origin and HistoryPermalink

Pinguicula longifolia subsp. longifolia is a subalpine endemic to a small area in the central Pyrenees. The flowers show some characteristics of Pinguicula grandiflora. Jurg Steiger in “Pinguicula (Lentibulariaceae) : The cool climate species of the northern hemisphere - Morphology, Biology, Cultivation” a text from the second conference of the International Carnivorous Plants Society, Bonn (Germany), May 30 - June 1st, 1998, wrote that the climatic tolerance and the flower morphology may be a hint for some genetic introgression by P. grandiflora. P. longifolia can be found in some location together with P. grandiflora . Some hybrids between the two species are supposed to be found. Maybe one is showed in pictures.

Location / MapPermalink

soon

HabitatPermalink

Pinguicula longifolia is a petrophyllous species that grow on shady and wet, vertical or overhanging, limestone walls at an altitude between 700m and 1900m.

Introduction to HorticulturePermalink

My plants comes from J.J. LABAT collection (manager of the famous French Nursery “Nature et Paysage”).

In 2002, Jean-François Fougere gave me some seeds of Pinguicula longifolia or hybrids from canyon of Anisclo and from Pineta. I have now many very young seedlings.

Growth and PropagationPermalink

North hemisphere, France near Paris, in a garden - see the map

Life CyclePermalink

In spring, the cycle begins by the opening of the winter buds and the production of the first carnivorous leaves. The first leaves are followed by the flowers in summer. The long summer leaves, can reach a length of 140mm and have a very rare characteristic : glands are presents on the two sides of the leaves ! New carnivorous leaves are produced during all the season. Near autumn, or earlier, if your conditions are not optimal, the next hibernacula is revealed in the centre of the rosette. Then leaf production stops and the old leaves decay slowly. The plant (reduced now to a small hibernacula) is ready for winter and for the next cycle.

MediaPermalink

I use a 100 % mineral media : 2 perlite, 2 vermiculite, 1 small sand (for aquarium), 1 fine white sand, 1 pouzzolane (volcanic lava), 2 marly calcareous detritus.

PotPermalink

Plastic, colour terracotta, diameter 12.5cm, height 12cm.

CultivationPermalink

The long term cultivation of temperate Pinguicula is difficult : If the summer growing conditions are not optimal, the plants will form very weak hibernacula which easily rot.

Optimal summer growing conditions are : good air humidity, cool temperature and UV lights.

I grow my plants in my greenhouse all the year with a good amount of direct sun.

PropagationPermalink

By seeds or using the gemmae produced around winter hibernacula.

PicturesPermalink

Valley of Pineta (Huesca)Permalink

Circus of Pineta (Huesca) This image in its original context, on the page : edafologia.htm	Valley of Pineta (Huesca) This image in its original context, on the page : pirineos.htm
Pinguicula longifolia subsp. longifolia in Valley of Pineta. Note this incredible red color of the leaves ! Photo : J.F. FOUGERE	Pinguicula grandiflora with nice red leaves found in France, in valley of the Gela before Piau Engaly (St LARY) and the tunnel of Biesca. Photo : J.F. FOUGERE
Iris xyphoïdes Photo : J.F. FOUGERE	Lilium pyrenaicum Photo : J.F. FOUGERE

Canyon of AniscloPermalink

Canyon of Anisclo This image in its original context, on the page : pyreneje.htm	The habitat of Pinguicula longifolia in Anisclo canyon.  Photo : Eric Partrat - April 2003 -
The habitat of Pinguicula longifolia in Anisclo canyon.  Photo : Eric Partrat - April 2003 -	Pinguicula longifolia in full bloom in Anisclo canyon.  Photo : Eric Partrat - April 2003 -
Pinguicula longifolia in Anisclo  Photo : J.F. FOUGERE	Pinguicula longifolia in full bloom. The younger flower are darker than the older ones.  Photo : Eric Partrat - April 2003 -
Pinguicula longifolia in full bloom. Note the variation in the flowers. Photo : Eric Partrat - April 2003 -	Pinguicula longifolia in full bloom. Note the variation in the flowers : some overlaping lobes other no.  Photo : Eric Partrat - April 2003 -
Some pale flowers of Pinguciula longifolia.  Photo : Eric Partrat - April 2003 -	Carnivorous plants. Yes, but sometimes also victim of other animals eating fresh leaves : here, a Caterpillar.  Photo : Eric Partrat - April 2003 -
Pinguicula longifolia in flower with first sign of next long leaves.  Photo : Eric Partrat - April 2003 -	Later in the season, Pinguicula longifolia show the long leaves. J.J. Labat reported some plants with a record lenght of 25 cm !.  Photo : J.F. FOUGERE
Color and shape variations in flowers of a SAME population of Pinguicula longifolia subsp. longifolia in Anisclo Canyon. Photo : Eric Partrat  - April 2003 -
Saxifraga longifolia Photo : J.F. FOUGERE	Rio Bellos Photo : Jon Izeta This image in its original context, on the page : 2_puente.html
Another site of Pinguicula longifolia along Rio Bellos. Photo : J.F. FOUGERE	The same location early in the season. Note the level of the river ! Photo : Eric Partrat - April 2003 -