A new and minute Matelea (Apocynaceae) from Veracruz, Mexico

keywords: Altotonga, Gullivert, Lilliput, Matelea anomala, Pancho Poza River Reserve, Gonolobinae

Abstract

Background: Through field work in the municipality of Altotonga, Veracruz, populations of a species of the genus Matelea with a small flower were located. This entity did not match with the species reported for Mexico, but it is morphologically similar to M. anomala, which is endemic to Bolivia.

Questions: Do the Altotonga Matelea populations correspond to a new species for science or it is a disjunct distribution of M. anomala?

Studied species: Matelea sp. nov.

Study site and dates: Pancho Poza River Reserve, Altotonga, Veracruz, Mexico.

Methods: A morphological comparison was made with Mexican species of Matelea and with M. anomala, using the cohesive species concept.

Results: Matelea lilliputiana is described as a new species to science, endemic to the municipality of Altotonga, Veracruz. It differs from M. anomala in having a 5-lobed gynostegial crown with bifurcate apices (vs. crown not clearly lobed and fimbriate margins in M. anomala), angular stipe (vs. cylindrical) and a densely pubescent-hirsute calyx (vs. glabrescent). Additionally, M. lilliputiana is endemic to Mexico and grows in pine-oak forest with mesophyll elements, while M. anomala is endemic to Bolivia and grows in seasonally dry scrub.

Conclusions: With the present discovery, the state of Veracruz reaches 126 species of Apocynaceae, with five endemics. Worldwide, it is the second species of the genus with corollas less than 5 mm long and the first in Mexico.

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A new and minute <em>Matelea</em> (Apocynaceae) from Veracruz, Mexico

References

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Published
2024-03-05
How to Cite
Alvarado-Cárdenas, L. O., Díaz-Mota, S., & Pío-León, J. F. (2024). A new and minute Matelea (Apocynaceae) from Veracruz, Mexico. Botanical Sciences, 102(2), 609-615. https://doi.org/10.17129/botsci.3425
Section
TAXONOMY AND FLORISTICS / TAXONOMÍA Y FLORÍSTICA