Pinguicula calderoniae 

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TAXONOMY:

Family : Lentibulariaceae

Genus : Pinguicula

Name : Pinguicula calderoniae

 

Sub-classification (Casper) : link

Publication : By Dr. Sergio Zamudio Ruiz : " Una especie nueva notable de Pinguicula (lentibulariaceae) de los estados de Queretaro y San Luis Potosi, Mexico" in Bol.Soc.Bot.Mex.68:85 (2001)

 

Etymology : The name of the plant referred to Maestra Gracelia Calderon de Rzedowski, a Mexican Botanist.

DESCRIPTION :

 

Herba perennis. Folia radicalia rosulata integerrima biformia; rosula hiemis hypogaea 5 - 15 mm diametro bulbiformis ex foliis numerosis (6 - 30) composita, foliis squamiformibus obtrullatis vel ellipticis apice obtusis mucronatis glabriusculis 3 - 10 mm longis, 1.5 - 4 mm latis; rosula aestatis (3) 4 - 8 foliis erectis composita, foliis lineari-lanceolatis, proximaliter distaliterque gradatim attenuatis, superne glandulis sessilibus dense vestitis et glandulis stipitatis modice dense vestitis, (60) 80 - 260 mm longis, 3 - 8.5 mm latis margine valde revolutis. Pedunculi 1 - 3, erecti, glandulis stipitatis obsiti, 60 - 150 mm alti, uniflori. Flores 20 - 35 mm longi (clacari incluso). Calyx bilabiatus extus glandulis stipitatis obsitus; labio supero usque ad basim trilobo, lobis usque ad 1/4 - 1/2 longitudinis divisis, lanceolatis vel triangulatis. Corolla bilabiata rubro-purpurea extus glandulis stipitatis dispersis obsita, lobis oblongis vel anguste oblongis, obtusis vel rotundatis 5 - 8 mm longis, 3 - 6 mm latis. Tubus longe infundibuliformis, albus vel ex purpureo albus 7 - 10 mm longs, intus pilosus basim tubi versus pilis brevioribus. Calcar 7 - 16 mm longum. Stamina 2 - 2.5 mm longa; pollen (4) 5 (6) - colporatum. Ovarium subglobosum glandulis stipitatis dispersis obsitum. Stigma violaceum bilabiatum; labio infero suborbiculato dentato. Capsula subglobosa 3 - 4 mm diametro. Semina fusiformia +/- 1 mm longa +/- 0.25 mm lata, alveolata. 

 

translation :

 

- soon -

ORIGIN AND HISTORY :

Explorations in valleys in cloud forest in the border of Queretaro and San Luis Potosi states revealed a Pinguicula with a bilabiate corolla with long-infundibuliform tube, as long as or shorter than the spur, placed in subgenus Pinguicula, section longitibus and described as a new species under the name Pinguicula calderoniae. 

This taxon is crealy differentiated from other members of this group by its long lanceolate-linear summer leaves ((60) 80 - 260 mm !), which is unique in the section. 

Map / LOCALISATION : 

 

Two locations are noted in the publication : 

 

- From Mexico, Queretaro. Municipio de Landa, extrem north of the Llano Chiquito. 

 

 

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

 

- From Mexico, San Luis Potosi, Municipio de Xilitla; Llano del Cornejo.

 

 

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

HABITAT:         

On calcareous rocks in the cloud forest (bosque mesofil de montana). Plants grow at altitude of 2200 to 2300m. According to the publication, Pinguicula calderoniae grows on wet calcium carbonate concretions, on vertical calcareous walls, in limestone cracks.

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 :

Only in Mexico in a relative of Dr Sergio Zamudio. 

CULTURE AND MULTIPLICATION : 

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

Life cycle : Flowering in June in habitat with young summer leaves and last winter leaves. In culture (in Mexico), the summer rosette last until October and the winter rosette is produced in november. The compact winter rosette remains until May of the following year. 

 

Media : I will 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 12.5cm, height 12cm.

 

Cultivation : no data. I will work as for all other Mexican Pinguicula.

 

Multiplication : no data. The plants should 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. 

PICTURES: (click to enlarge)