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Family : Lentibulariaceae
Genus : Pinguicula
Name : Pinguicula debbertiana
Sub-classification (Casper) : link
Publication : Dr Franz Speta and Franz Fuchs in : "Pinguicula debbertiana (Lentibulariaceae), eine weitere neue Art aus Mexico", Linzer Biol.Beitr.24:375 (1992).
DESCRIPTION : (by Dr Franz Speta and Franz Fuchs)
Plantae perennes. Rhizoma simplex brevis radicibus adventitiis numerosis filiformibus. Folia rosulae densae hiemalis XI-III (IV) 45 -48, succulenta, ca. 8 mm longa, 5 mm lata, 1.25 mm crassa pilosa, solo adpressa. Folia rosulae aestivalis IV – X (XI) ca. 24 – 30, aerea, breviter petiolata, ca. 13 mm longaet 8 mm lata, 1.5 mm crassa. Hibernacula nulla. Florescentia II – IV (VI). Pedicelli 2 – 3, teretes, erectii, 6 – 7 mm longii +/- glabri. Calyx glanduloso-pilosus, sepala 2.25 mm longa, 1.25 - 2 mm lata, inferiora 1.3 mm concrescentia. Corolla bilabiata sub-isoloba, intus malvacea (Ridgway XI/65b) nervis purpureis (XXV/65’), centrum alutaceum, subglabrum, extus sparse glanduloso-pilosa. Labium superius et labium inferius angulum 90° formans. Lobi 6 mm longi, 6 mm lati. Pili fauce implices. Calcar 8 mm longum, paucicurvatum, pilosum. Ovarium globosum, glandulosopilosum, stigma albescens ciliata. Ovula numerosa. Filamenta lutea, 1 mm longa, thecae et pollen albescentes.
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ORIGIN AND HISTORY :
Localisation / Map:
Pinguicula debbertiana comes from Mexico, state of San Luis Potosi, Huizache crossing. No more data. There are many towns with the name Huizache in San Luis Potosi.
(click on the map for better location and relief map)
TEMPERATURE and PRECIPITATIONS :
Click on the graph to enlarge and see the graph of normal precipitation and normal average temperatures. Normal values are 30-year averages for the period 1961 to 1990. The weather stations are grouped by region (see map of weather stations).
Introduction in culture :
CULTURE AND MULTIPLICATION :
(North hemisphere, France near Paris, in a polycarbonate greenhouse - see the map -)
Life cycle : The life cycle observed in culture for this Pinguicula consists of two seasons, one wet and the other dry (see link). The plant forms different leaf rosettes according to the season. During the resting months (winter) the small succulent rosette is composed of numerous non-carnivorous leaves. The carnivorous leaves are produced in spring and during all summer. The life cycle of the plant is probably similar in it's native habitat but I have no data.
Media : I use a 100 % mineral media : 2 perlite, 2 vermiculite, 1 small sand (for aquarium), 1 fine white sand, 1 pouzzolane (volcanic lava), 1 aqualit (expansed ceramic for aquarium). The aqualit can be replaced by 1 of pouzzolane. Plants in this media grow slower but have a stronger root system.
Pot : plastic, colour terracotta, diameter 20cm, height 12cm for forming a colony.
Cultivation : I think that a slightly airy situation inside the greenhouse is important to avoid air stagnation. For this reason, I use a fan 24h/24h all the year round.
Watering is very important : from May to September (summer). I let the media drying slightly between two watering. I use rain water poured on the top of the pot taking care not to wet the rosette. From October to April, It is important to let the media drying completely (no watering) but with an atmospheric humidity of about 80%.
The mentioned months are indicative and can change according to your own growing conditions. In fact, when this Pinguicula begins to produce its non-carnivorous leaves, you have to stop watering and let the pot drying out completely. Inversely, when the plant begins to produce in early spring its carnivorous leaves, you have to progressively start watering again the pot.
Temperatures : during growth period, day temperatures are about 25°C but may reach 35°C when the sun is shining on the greenhouse in spite of the use of shading covers. Night temperatures are around 20°C. During resting period : day/night
over freezing point. Lower temperature observed : - 4°C. I use an electronic petroleum heater to provide heat.
Flowering period : June 2001,
Multiplication : I have never succeeded in pollinating the flowers of this Pinguicula (needs two different clones ?). So I don't know the seeds. The plants can be propagated easily using non-carnivorous leaves separated from the rosette at the end of winter. You only have to carefully tear out the totality of the leaf including the white base as the plantlets will sprout from this area. Summer leaves can be used too.
PICTURES: (click to enlarge)
A typical high-tray near El Huizache.
This image in its original context, on the page :
Cluster of winter rosette of Pinguicula debbertiana in culture
Photo : Eric Partrat
- January 2001 -
Close-up of the flower of Pinguicula debbertiana in culture.
Photo : Eric Partrat
- June 2001 -
Close-up of a white flowered Pinguicula debbertiana in Oliver Gluch's culture.
Photo : Oliver Gluch
Photo : Vic Brown
Pinguicula debbertiana with white flower
Photo : Vic Brown