Autor: IVON MERCEDES RAMIREZ MORILLO

A new Hechtia (Bromeliaceae) from the states of Queretaro and Hidalgo, Mexico

Una nueva Hechtia (Bromeliaceae) de los estados de Querétaro e Hidalgo, México

IVON MERCEDES RAMIREZ MORILLO (2008)

Hechtia lepidophylla is described and illustrated. A complete description including characters of staminate, pistillate, and fruiting plants is included, with details of growth pattern and ecological characteristics, as well as characters to distinguish it from species with similar vegetative and floral characters such as H. argentea, H. glomerata, and H. texensis.

Artículo

BROMELIACEAE HECHTIA HIDALGO MÉXICO QUERÉTARO BIOLOGÍA Y QUÍMICA BIOLOGÍA Y QUÍMICA

A new species of Hechtia(Hechtioideae, Bromeliaceae) from Puebla, Mexico

IVON MERCEDES RAMIREZ MORILLO (2012)

A new species of Hechtia, H. pueblensis,from the Mexican State of Puebla, is described and illustrated. The new taxon

is well documented with illustrations and photographs of staminate and pistillate flowers, as well as fruits. It shares its

small-sized rosette and usually simple panicles with H. lyman-smithii(from a nearby geographical region in Oaxaca) and

with H. fragilis(from Puebla and Oaxaca).

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CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA

A New Species of Hechtia (Bromeliaceae) from Chihuahua, Mexico

IVON MERCEDES RAMIREZ MORILLO (2011)

Hechtia edulis I. Ramírez, Espejo & López-Ferr. (Bromeliaceae) is described and illustrated from Copper Canyon National Park, Chihuahua, Mexico. The new entity is characterized by its caespitose, monocarpic habit, by its small rosettes, and by the similarity of its staminate and pistillate inflorescences in size, the simple panicles with the branching much shortened, the flowers sessile, the floral bracts scarious, and pistillate flowers with petals green and carnose.

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CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA CIENCIAS DE LA TIERRA Y DEL ESPACIO GEOGRAFÍA GEOGRAFÍA DE LOS RECURSOS NATURALES

Hechtia aquamarina, a new name for Hechtia pueblensisI. Ramírez

&

Jiménez

IVON MERCEDES RAMIREZ MORILLO (2012)

The new name Hechtia aquamarinais proposed to replace Hechtia pueblensisI. Ramírez and Jiménez, a name blocked

by H. pueblensisBurt-Utley, Utley & García-Mendoza.

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CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA

Recircumscription and epitypification of Hechtia schottiiBaker and H. stenopetalaKlotzsch (Hechtioideae: Bromeliaceae)

IVON MERCEDES RAMIREZ MORILLO (2012)

Epitypes are designated for the Mexican speciesHechtia schottiiandHechtia

stenopetala. Complete descriptions of the two taxa are presented as well as specimen citations and

iconography depicting relevant characteristics of the species and plants in habitat. The first species, known

only from the States of Campeche and Yucata´ n, was based upon pistillate material (old fruits and immature

pistillate buds) and leaf fragments; the epitype adds the staminate flowers and complete leaves. The second

species, restricted to the Veracruz State, was based upon a plant with old, open fruits; the epitype adds the

staminate flowers and leaves.

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CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA

A new species of Hechtia (Bromeliaceae) from southwestern Tamaulipas, Mexico

IVON MERCEDES RAMIREZ MORILLO (2013)

A new species of Hechtia from the Mexican State of Tamaulipas is herein proposed as new: Hechtia hernandezsandovalii,

which is known only from the municipality of Villa de Miquihuana in the southwestern portion of the state.

The new species is easily recognized by the following combination of characters: its white cotton-like indument (turning

brownish with age) on the branches, rachis, and peduncle of both staminate and pistillate inflorescences. The new taxon

is compared with H. glomerata, a species morphologically similar.

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CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA

Hohenbergia mesoamericana (Bromeliaceae), first record of the genus for Mesoamerica

IVON MERCEDES RAMIREZ MORILLO (2010)

Hohenbergia mesoamericana I. Ramírez, Carnevali et Cetzal is proposed as new, described, and illustrated. Because the genus was previously known only from the Antilles, Colombia, Venezuela, and Brazil, this new species represents the fi rst record of Hohenbergia for Mexico and Mesoamerica. The new species is morphologically similar to the Jamaican H. spinulosa Mez in having the bracts subtending the spikes far exceeding them (especially the lowermost) and green petals, but differs in several characters, including a more elongate peduncle and rachis resulting in a less dense inflorescence, shorter floral bracts, and pedicellate spikes. The conservation status of the new species is evaluated as critically endangered (CR) according to IUCN criteria.

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CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA CIENCIAS DE LA TIERRA Y DEL ESPACIO GEOGRAFÍA GEOGRAFÍA DE LOS RECURSOS NATURALES

Dos nuevas especies de Hechtia (Bromeliaceae; Pitcairnioideae) del centro de México

Two new species of Hechtia (Bromeliaceae; Pitcairnioideae) from the central part of Mexico

MARIO ADOLFO ESPEJO SERNA IVON MERCEDES RAMIREZ MORILLO (2008)

Se describen e ilustran dos nuevas especies de Hechtia, H. pretiosa y H. zamudioi. Ambos taxa son endémicos del centro de México, el primero de Guanajuato y el segundo de Querétaro.

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BROMELIACEAE GUANAJUATO HECHTIA MÉXICO QUERÉTARO BIOLOGÍA Y QUÍMICA

Reproductive biology of Hechtia schottii, a dioecious Bromeliaceae, in Mexico

IVON MERCEDES RAMIREZ MORILLO FRANCISCO CHI MAY GERMAN CARNEVALI FERNANDEZ CONCHA FILOGONIO MAY PAT (2008)

Hechtia schottii is a terrestrial, rosetofilous, dioecious, polycarpic succulent herb, that grows mainly in shrubby associations, and less frequently, in secondary low caducifolious forests, both on calcareous soils or limestone outcrops in Yucatan and Campeche States, Mexico. We studied phenology, floral and pollination biology, and breeding system at Calcehtok, Yucatan, during two flowering seasons. Plants bloom mainly during the dry season (November-April) and disperse seeds during the rainy season (May-October). Both floral morphs have diurnal anthesis; pollen is removed ca. 1 h after anthesis starts and both floral morphs are visited by several insect species, especially bees, but results suggest that the introduced honey bee, Apis mellifera, is the pollinator. Controlled crossings show that the species is functionally dioecious and requires to be serviced by pollinators based on fruit setting only in unassisted cross pollination crosses.

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HECHTIA SCHOTTII BROMELIACEAE REPRODUCTIVE BIOLOGY DIOECY POLLINATORS MEXICO YUCATÁN BIOLOGÍA Y QUÍMICA

Dos nuevas especies de Hechtia (Bromeliaceae) de México

Two new species of Hechtia (Bromeliaceae) from Mexico

MARIO ADOLFO ESPEJO SERNA IVON MERCEDES RAMIREZ MORILLO NANCY MARTINEZ CORREA (2007)

Se describen e ilustran Hechtia nuusaviorum y H. perotensis. La primera es una especie endémica de Oaxaca y la segunda se conoce de los estados de Veracruz y de Puebla, de la región conocida como Valle de Perote.

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BROMELIACEAE HECHTIA MEXICO OAXACA PUEBLA VERACRUZ BIOLOGÍA Y QUÍMICA