Mexican Vascular Epiphytes: Richness and Distribution

Phytotaxa ◽  
2021 ◽  
Vol 503 (1) ◽  
pp. 1-124
Author(s):  
ADOLFO ESPEJO-SERNA ◽  
ANA ROSA LÓPEZ-FERRARI ◽  
ANICETO MENDOZA-RUIZ ◽  
JAVIER GARCÍA-CRUZ ◽  
JACQUELINE CEJA-ROMERO ◽  
...  

The first complete checklist of the Mexican vascular epiphytes is presented, accompanied by data relating to its geographical distribution by state, elevational range, endemism, life form and type of vegetation in which each species can be found. Based on the review of herbarium specimens and specialized literature, as well as in the collection of botanical material in several regions of the country, we determined that the vascular epiphytes of Mexico are integrated by 24 orders, 37 families, 253 genera, and 1,813 species, of which 583 are endemic to the country. The families with the highest specific richness are Orchidaceae, Bromeliaceae, Polypodiaceae, and Piperaceae, while the genera with the highest number of taxa are Tillandsia, Epidendrum, and Peperomia. Only one gymnosperm, Ceratozamia tenuis, was registered as epiphyte. The types of vegetation that harbor the greatest richness are the cloud forest with 1,079 species and the Quercus forest with 837. One hundred eighty-six species are found in some category of the NOM-059-SEMARNAT-2010.

Phytotaxa ◽  
2015 ◽  
Vol 197 (2) ◽  
pp. 61 ◽  
Author(s):  
Walter Stephen Judd ◽  
Lucas Charles Majure ◽  
Gretchen Mary Ionta ◽  
Kurt Maximillian Neubig

The pattern of morphological variation in Miconia subcompressa, a species endemic to the mountains of southern Hispaniola, is assessed by a consideration of numerous herbarium specimens (many collected by the authors) and a phenetic (Principal Components) analysis of 14 vegetative characters, and morphological entities are compared with a phylogenetic hypothesis based on nrDNA-sequence variation (ITS, ETS) including several accessions of this species (from across its geographic and elevational range) as well as related species of Miconia sect. Chaenopleura, especially those of the Massif de la Hotte, Haiti. Our morphological data, incorporating recently collected herbarium material, indicate that the populations of M. subcompressa from the Monteada Nueva region (= Loma Trocha de Pey) are diagnosable morphologically from those of the Massif de la Selle and Massif de la Hotte, and these plants are described here as Miconia subcompressa subsp. beverlyana. Additionally, this study supports the recognition of the populations from moist pine forest/cloud forest habitats of the Massif de la Hotte, occurring mainly from 1450–2300 m, as M. subcompressa subsp. plumieri (= M. plumerii, sic). Finally, Miconia subcompressa may be paraphyletic, as preliminary molecular evidence suggests that M. xenotricha may have arisen within its phylogenetic structure.


2014 ◽  
Vol 30 (6) ◽  
pp. 625-628 ◽  
Author(s):  
Jennifer C. Sanger ◽  
James B. Kirkpatrick

Abstract:We investigated the effects of host tree on epiphyte diversity, controlling for microclimate. We measured the light profiles of the lower trunks of 20 individuals, each from three host groups (tree ferns, dicots, palms) occupying the understorey in a tropical montane forest in Panama. The per cent cover and species richness of vascular and non-vascular epiphytes were surveyed on the lower trunks of each understorey host. Light varied considerably between trees (5–21% total transmitted light) but mean light level did not vary between types of host. Light was not significant as a covariate with host in any model. Tree ferns had higher covers than dicots and palms of filmy ferns (15%, 0.02% and 0.2%), other ferns (7%, 0% and 0.5%) and other vascular epiphytes (16%, 3% and 3.4%), and greater species richness of vascular epiphytes (filmy ferns: 3, 0.4 and 0.5; other ferns: 2, 0.2 and 0; other vascular: 7, 2 and 2). Dicots had a higher cover of liverworts (53%) than palms (18%) and tree ferns (27%). Palms and tree ferns were the compositional extremes. We conclude that the differences in species composition and cover between the three host groups relate better to physical differences between hosts than differences in light climate.


Lankesteriana ◽  
2020 ◽  
Author(s):  
Rafael Grajeda–Estrada ◽  
Juan Pablo Rustrián–López ◽  
Marcelo José Serrano ◽  
Andrés Villalobos–Soberanis ◽  
Mayra L. Maldonado ◽  
...  

We present a range extension for Sobralia amabilis, previously recorded from the southeastern border of Guatemala to Panama and Ecuador. Here, we detail its taxonomic history, description, and geographical distribution, along with photographs of the plants in vivo, habitat notes and recommendations for collecting and preparing herbarium specimens. Key words: cloud forest, Northern Central America, occurrence, orchid, Sobralieae


2005 ◽  
Vol 21 (6) ◽  
pp. 651-660 ◽  
Author(s):  
Klaus Mehltreter ◽  
Alejandro Flores-Palacios ◽  
José G. García-Franco

The diversity, abundance and frequency of vascular epiphytes on the lower trunk were compared between two host groups of a Mexican cloud forest: angiosperm trees (n = 72) and tree ferns (n = 28). The bark of the five most frequent host trees and the root mantle of the two tree ferns were analysed for their thickness, water content, water retention capacity and pH. A total of 55 epiphyte species and 910 individuals were found on the 27 host species. On hosts with a dbh range of 5–10 cm, epiphytes were significantly more diverse (4.3±0.9 species per host) and more abundant (12.5±2.2 individuals per host) on tree ferns than on angiosperm trees (1.9±0.2 species per host and 3.9±0.6 individuals per host). However, these differences were not significant for the dbh class of 10–20 cm, because epiphyte numbers increased on angiosperm trees with larger host size, but not in tree ferns. Most epiphyte species had no preference for any host group, but four species were significantly more frequent on tree ferns and two species on angiosperm trees. The higher epiphyte diversity and abundance on tree fern trunks of the smallest dbh class is attributed to their presumably greater age and to two stem characteristics, which differed significantly between host groups, the thicker root mantle and higher water retention capacity of tree ferns. These bark characteristics may favour germination and establishment of epiphytes.


Phytotaxa ◽  
2021 ◽  
Vol 522 (1) ◽  
pp. 1-14
Author(s):  
JANEJAREE INUTHAI ◽  
SAHUT CHANTANAORRAPINT ◽  
RUI-LIANG ZHU

An account of the Drepanolejeunea subgenus Rhaphidolejeunea in Thailand has been updated based on herbarium specimens and recent collections from field surveys. Five species of Drepanolejeunea, i.e. Drepanolejeunea commutata, D. fleischeri, D. siamensis, D. spicata, and D. yunnanensis are recognized. Of these, Drepanolejeunea commutata, D. fleischeri, and D. yunnanensis are newly reported for Thailand. A key to species, descriptions, distribution ranges and illustrations of each species are provided. The ecology and geographical distribution of the species are noted. Additionally, Drepanolejeunea longicruris is excluded from the country.


Check List ◽  
2015 ◽  
Vol 11 (6) ◽  
pp. 1798 ◽  
Author(s):  
Frederico Fregolente Faracco Mazziero ◽  
Fabiana Regina Nonato

This work presented the inventory of ferns and lycophytes of Jaú, São Paulo state. Sixty-eight species of ferns and one of lycophyte were recorded, distributed in 16 families and 32 genera. The richest families were Pteridaceae and Thelypteridaceae with 15 species each, Polypodiaceae (7spp.), Blechnaceae and Dryopteridaceae (5 spp. each). The most common guild of life form was terrestrial herbs with 57 species, followed by epiphytes (6 spp.), arborescent, aquatic and lithophytes (2 spp. each) and hemiepiphytes and scandents with one species each. The analysis of the geographical distribution showed that 46% of the species (32 spp.) occur in the Neotropics, 20 species occurs in Southern America, eight are endemic of Brazil, five pantropical and four are exotic. This study can further collaborate in the protection and preservation of the few remnants which represent probably the last areas where some species of these groups of plants occurring in the municipality.


2017 ◽  
Vol 219 (3) ◽  
pp. 900-913 ◽  
Author(s):  
Sybil G. Gotsch ◽  
Todd E. Dawson ◽  
Danel Draguljić

Phytotaxa ◽  
2016 ◽  
Vol 282 (3) ◽  
pp. 211
Author(s):  
ROSARIO REDONDA-MARTÍNEZ ◽  
JOSÉ LUIS VILLASEÑOR ◽  
ALVARO CAMPOS-VILLANUEVA

A new species of Vernonia (Asteraceae, Vernonieae) is described from mountain cloud forest, Pinus forest and Pinus–Quercus forest in the State of Oaxaca, Mexico. Typical characters of this species are the lax corymbiform inflorescences, formed by 3–10 heads on peduncles > 4.5 cm long, and the lanceolate or elliptic-ovate shape of leaves. A key to the Mexican species of Vernonia is included.


2021 ◽  
Vol 11 (3) ◽  
pp. 5-15
Author(s):  
Svetlana Degtyareva ◽  
Valentina Dorofeeva ◽  
Yuliya Chekmeneva

The results of the analysis of Quercus L. species stored in the herbarium of the Department of Botany and Plant Physiology of Federal State Budget Educational Institution of Higher Education VSUFT (Voronezh) are presented. This herbarium of historical plant collections of the genus Quercus L. is critical for tracking changes in the genus, including the introduction and distribution of species. We examined the belonging of the species to systematic units – subgenus, section, subsection, row, using the traditional classification and the updated intrageneric classification of oaks. Information about the life form, plant height, date and place of collection of the specimen was recorded. We entered information into the database, which will further simplify the work on registration, revision of the herbarium fund and when replenishing herbarium specimens. Conclusions were drawn based on the results of the workabout changes in the taxonomic nature and phylogenetic relationships of species in Quercus L. genus


Phytotaxa ◽  
2019 ◽  
Vol 422 (1) ◽  
pp. 1-8
Author(s):  
EDUARDO RUIZ-SANCHEZ ◽  
ARTURO CASTRO-CASTRO ◽  
JUAN PABLO ORTIZ-BRUNEL

Otatea, with 12 described species, is the second most diverse genus in the subtribe Guaduinae. Eleven species of Otatea occur in Mexico, of which 10 are endemic. The Mexican Otatea species grow in tropical dry forest, the ecotone between tropical dry forest and oak forest, cloud forest, humid oak-pine forest, and xerophilous scrubs. Here, we describe the synflorescence and flowers of Otatea nayeeri and O. transvolcanica, based on newly collected specimens and review of existing herbarium material. We present a key based on the flowering characters of the Mexican Otatea species, and provide expanded morphological descriptions and illustrations of O. nayeeri and O. transvolcanica. Otatea nayeeri and O. transvolcanica do not exhibit the gregarious monocarpic flowering pattern that has been recorded for other Otatea species. A flowering individual of O. transvolcanica was observed being visited by a Lasioglossum (Dialictus) sp. (Halictidae) bee. This is the first record for Otatea being visited by bees. The geographical distribution of O. nayeeri is extended northwards to the state of Durango in Mexico.


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