P. agnata

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World of Carnivorous Plants
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Pinguicula cyclosecta Casper (1963)




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Topographic map of Central Mexico with the location of the city of Zimapán, state of Hidalgo.






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Topographic map with all known locations of P. agnata (red dots) in the Mexican states of Hidalgo, Querétaro and Guanajuato. Plants collected from the "locus classicus" (located northeast of Zimapán)  served for the species description.





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Landscape south of the Sierra Gorda close to the village of El Lobo in the state of Querétaro with a typical vegetation of a "mattoral submontaneo" during the rainy season.

22nd February 2015







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Landscape south of the Sierra Gorda during the dry winter season. The only humidity available for the plants during this season does come from morning fogs or clouds coming down from the mountains into the valley. As most of the shrubs and bushes are deciduous and therefore lose its foliage over winter, the lanscape gives a quite bleak impression.

22nd February 2015





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Typical habitat of P. agnata (here along the road from Xilitla to Landa de Matamoros close to the village El Lobo, at an elevation of about 1600 m). Plants grow on vertical calcareous cliffs. Close by to that site there is also P. moranensis occuring.

22nd February 2015






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"Locus classicus" of P. agnata on steep, vertical, calcareous cliffs above the Tolimán river canyon north of the city of Zimapán in the state of Hidalgo. The species was described based on plants collected from this site (but collected from more accessible places).

29th August 2009






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P. agnata plants on vertical cliffs above the Tolimán river. Only few seeds do make it to establish and grow  in crevices or on mosses. As plants tend to divide from time to time, there are often a group of plants together at one spot.

4th October 2015






Plants in winter rosette at the location of "El Lobo". Around the winter rosettes there are still the dried summer leaves visible.

4th October 2015






Beside P. agnata there are only few other plant species, like cacti or succulents (here a Hechtia species), that can grow permanently under those conditions on the vertical cliffs. Humidity from morning dew or from clouds appearing in the afternoon is the only source of water for the plants at this time of the year. 

22nd February 2015






Red to salmon coloured winter rosette of P. agnata at the "El Lobo" site. During the dry season the winter rosette is compact and the leaves are shorter compared to summer leaves. The upper surface of the leaves are densely covered with white hairs. Those hairs probably also serve to collect humidity from the air.

22nd February 2015






Winter rosettes (in culture).

22nd February 2015






Plants of P. agnata in summer rosettes in the "Barranca de Tolimán" (Tolimán canyon) 2 to 3 m above the river bed (1300 m above sea level). Due to very dry conditions at the time point of visit the summer leaves were quite soft and thin (probably due to lack of humidity).

4th October 2015






Plants are using any opportunity in crevices or mosses to grow on those vertical cliffs.

4th October 2015