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| Hechtia marthae I. Ramírez, in Ramírez-Morillo, Carrillo-Reyes, Tapia-Muñoz & Ramírez-Díaz, 2021. Illustration by Alberto Guerra based on photographs by Ricardo Quirino-Olvera. Gustavo Romero-González. Adolfo Espejo-Serna, Ivón Ramírez-Morillo. |
Abstract
Epitypes are proposed for two species of Hechtia: H. subalata and H. jaliscana, both endemic to Western Mexico. The holotypes of both species consist of fruiting specimens. While the female flowers of both species are extremely similar, the staminate ones are noticeable different: we select staminate vouchers as epitypes to clearly circumscribe both taxa. As a result of the delimitation of the concept Hechtia subalata and its geographical distribution, we identify a new species from Durango, Mexico, previously misidentified as Hechtia subalata: Hechtia marthae. We provide images portraying plant parts of all species, as well as photographs in habitat. Finally, assessments of the conservation status of the three species sensu IUCN criteria are included.
Keywords: Durango, epitype, Flora Novo-Galiciana, IUCN, Jalisco, Nayarit, Zacatecas., Monocots
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| Hechtia subalata portraying a rosette in bloom, note the red coloration on the leaves. A. Pistillate inflorescence. B. Female flowers at anthesis. C. Branch with open fruits. D. Staminate inflorescence. E. Details of the male flowers with open exposing the pollen. F. Open flowers before anthesis. (Illustration by Alberto Guerra based of photographs by A, B. Omar Góngora. C-F, Ivón Ramírez-Morillo). |
Hechtia jaliscana L.B. Sm.,
Phytologia 10(6): 482, t. 1, f. 10. 1964.
Hechtia subalata L.B. Sm.,
Contribution Gray Herbarium 117: 15–16, t. 1, f. 29. 1937.
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| Hechtia marthae I. Ramírez, sp. nov. A. Plants in habitat. B. Infructescence with open fruits in habitat. C. Seeds. (photos: A-C. Ivón Ramírez-Morillo). |
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| Hechtia marthae I. Ramírez, sp. nov. A. Pistillate plant in bloom. B. Staminate plant in bloom. C. Detail of inflorescence with young fruits. D. Female flowers at anthesis. E. Male flowers at anthesis. Illustration by Alberto Guerra based on photographs by A, D. Ricardo Quirino-Olvera. B. Gustavo Romero-González. C. Adolfo Espejo-Serna from the specimen A. R. López-Ferrari et al. 2989 (UAMIZ). E and staminate rosette based of photographs by Ivón Ramírez-Morillo. D and pistillate rosette in based of photographs by Ricardo Quirino-Olvera. |
Hechtia marthae I. Ramírez, sp. nov.
Diagnosis:—Hechtia marthae is similar to H. subalata but differs in its pistillate branches much shorter than theprimary bracts (vs. conspicuously larger than the primary bract), with shorter branches (2–5 vs. (2–)5–15 cm long),floral bracts narrowly triangular, 2–5 × 1 mm (vs. broadly ovate, 3–4.5 × 3–4 mm), ovary 1/3 inferior (vs. completelysuperior), with longer petals (5–7 vs. 3–5 cm long).
Eponomy:— The species is named after Martha González-Elizondo in recognition for her outstanding contributionto the knowledge on the Flora of Durango and for collecting material of the species.
Ivón Ramírez-Morillo, Pablo Carrillo-Reyes, José Luis Tapia-Muñoz and Claudia J. Ramírez-Díaz. 2021. In Disentangling Two Species Limits of Hechtia (Bromeliaceae: Hechtioideae) from Sierra Madre Occidental, A New Species is discovered from Durango, Mexico. Phytotaxa. 523(1);55-72. DOI: 10.11646/phytotaxa.523.1.3
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