Pinguicula emarginata

     go to : Home  index of species              

TAXONOMY:

Family : Lentibulariaceae

Genus : Pinguicula

Name : Pinguicula emarginata

 

Sub-classification (Casper) : link

Publication : Sergio Zamudio Ruiz and Jerzy Rzedowski

"Tres especies nuevas de Pinguicula (Lentibulariaceae) de Mexico", Phytologia, Vol. 60, N°4, 1986.

DESCRIPTION :

Herba perennis. Folia 5 – 16, elliptica vel obovata, breviter petiolata, 10 – 50 mm longa, (3) 5 – 22 mm lata, basi cuneata, margine integra et involuta ; rosula « hiemais » destituta. Pedicelli 1 – 7, 40 – 100 mm longi, uniflori. Flores (8) 10 – 16.5 mm longi (calcari incluso). Calyx bilabiatus ; labium superum usque ad basim fere divisum, lobis oblongis usque ad oblongo-lanceolatis, 1.6 – 2.5 mm longis, 0.5 – 0.8 ll latis, labium inferum usque ad 2/3 longitudinis bilobatum, lobis oblongis usque ad oblongo-lanceolatis, 1.5 – 2 mm longis, 0.3 – 0.7 mm latis, lobis aliquis apice leviter fissis vel omnino partitis. Corolla bilabiata, alba veis purpureis (lutea fide Gracia saucedo), labium superum infero brevius, bilobatum, lobis late oblongis usque ad subquadratis, 2 – 4 mm longis et latis, irregulariter emarginatis vel fissis; labium inferum trilobum, lobis spathulatis usque ad obovatis, 3.6 – 6.2 mm longis, 2 – 5 mm latis, apice truncates, irregulariter fissis vel emarginatis; tubus campanulatus usque ad late infundibuliformis, (1) 2 – 4 mm longus, 3 – 5 mm latus, intus pilis multicellularibus subulatis abundantibus, subforma brevior secus calcar penetrantibus; palatum nullum; calcar subulatum, rectum vel leviter curvatum, 4 – 7 mm longum, 0.5 – 1 mm latum. Stamina 1 – 1.8 mm longa. Capsula subglobosa, (1.5) 2 – 2.5 mm longa, 1.2 – 2 mm lata. 

 

Translation :

 

- soon - 

ORIGIN AND HISTORY :

No data.

Map / LOCALISATION : 

The type specimen comes from Mexico, State of Veracruz, Municipality of Atzalan, Tatzayanala on rocks along river bank, altitude of 1400m. 

 

(click on the map for better location and relief map)

 

 

You can find Pinguicula emarginata in the state of Puebla, in Mexico, in Cascade Oligui, between Teziutlan and Tlapacoyan, on river banks, in the cloud forest at an altitude of 1550m. You can find also in culture, a Pinguicula emarginata labelled "Zacapoaxtla", another locality in the state of Puebla too. Those are the only named location I know for Pinguicula emarginata clones grown worldwide . 

 

(click on the map for better location and relief map)

 

HABITAT:         

With exception of the information on habitat published by Sergio Zamudio Ruiz and Jerzy Rzedowski (on rocks along river bank, altitude of 1400m and on river banks, in cloud forest at an altitude of 1550m). The only information can be found in IPSG, Newsletter N°4, February 1994, in an article of Johan van Marm (Austria), "Pinguicula emarginata" giving the habitat for the plants from Cascade Oligui. 

"The vegetation of this area is typically sub-tropical, trees clothed with epiphytes such as bromeliads and orchids and the presence of many tree ferns providing evidence of the high humidity, especially close to the streams. Suddenly, we came upon a huge, vertical sandstone wall facing North and therefore shaded from direct sun. It was consequently more or less bare of any vegetation except for large, compact colonies of P. emarginata !"..."It was very impressive to see thousands of flowers hovering before the mass of leaves of so many hundreds of plants, which were clinging tenaciously by wiry roots to the thin, wet layer of humus coating the rock face". 

Introduction in culture :

I bought my first Pinguicula emarginata in J.J. LABAT's collection (manager of the famous French Nursery "Nature et Paysage"). It was a pale flower clone. Then later, I read Stan Lampard's article in IPSG, Newsletter N°4, February 1994, he noted that the flowers of Pinguicula emarginata show many nice variations : "There is also considerable variation in flower colour, ranging from white to deep violet, with the veins always a deeper shade than background colour and the blotch on the median lobe of the inferior petal being a uniform lemon yellow." So, I decided to find other clones of this wonderful species. I found another one in bestcarnivorousplants.com nursery, and in 2002, I received from Australia the only named location of Pinguicula emarginata (from Zacapoaxtla).  

CULTURE AND MULTIPLICATION : 

(North hemisphere, France near Paris, in a polycarbonate greenhouse - see the map -)

 

Life cycle : In culture, this Pinguicula is growing all the year round if temperature and humidity are high enough. The plant only forms different leaf rosettes depending on the dryness of the media. Is it an normal annual stage as for others Mexican Pinguicula, I don't know. In his article, Johan van Marm, gave more informations : "We were at an altitude of 1400m, which, in combination with the north facing aspect, resulted in a cool micro-climate in spite of the otherwise tropical warmth of the area".   

 

Media : I use the two following media but many others are possible : 

1 - In my greenhouse : 1 small sand (for aquarium), 1 fine white sand, 1 pouzzolane (volcanic lava), 1 shagnum peat. 

2 - Inside my terrarium : live sphagnum moss.

I didn't notice any differences between these two media except that the last one gives all the required humidity to the plants with less risk of over watering.

 

Pot : plastic, colour terracotta, diameter 12.5cm, height 12cm.

 

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 all the year round is very important if you want to keep your plant growing. Otherwise, it will result in the formation of a smaller rosette and the growth will slow down. I only let the media drying very slightly between two watering. I use rain water poured on the top of the pot. No problem with this plant if you wet the rosette, this species seems to be familiar with this as described in the article of Johan van Marm. Most of the Pinguicula emarginata in my greenhouse are protected from direct sun and are from far bigger that the P.emarginata receiving direct sun. 

Temperatures : 

1 - In my greenhouse : during summer and spring 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 winter : day/night over freezing point. Lower temperature observed : - 4°C. I use an electronic petroleum heater to provide heat. The plants are stressed and need more time to restart their growth when summer is here.   

2 - In my terrarium : during summer and spring period, day temperatures are about 15°C but may reach 20°C when the artificial lights are on. Night temperatures are around 15°C. During winter : between 10 and 15°C. I use the same terrarium for Pinguicula crystallina subsp. hirtiflora during winter. Lower temperature observed : 8°C.    

Flowering period : observed all the year round.

 

Multiplication : The plants can be propagated easily using carnivorous leaves separated from the rosette all the year round. Johan van Marm mentioned that he noticed better results when he used leaf cuttings taken from near the centre of an actively growing plant. The two methods give enough plantlets.

You only have to carefully tear out the totality of the leaf particularly with it's white base as the new plantlets will sprout from this area.  

PICTURES: (click to enlarge)