Vegetation and Flora of the Sonoran Desert.

Stephenson, Stephen N.; Shreve, Forrest; Wiggins, Ira L.

doi:10.2307/2483924

Cited by 126 publications

(15 citation statements)

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“…Other authors report that different methods -such as mechanical scarification with sulfuric acid, temperatures alternation (Connor et al, 2008), or immersion in hot water (Bainbridge, 2012)-benefit the germination of the seeds of genus Parkinsonia. Naturally, many species are consumed by animals that scarify or condition the seeds for better germination, after they pass through their digestive tract (Shreve and Wiggins, 1964;Whitford, 2002). Meanwhile, new ironwood seeds germinate without problems (Shreve and Wiggins, 1964).…”

Section: Resultsmentioning

confidence: 99%

“…The state of Sonora, in northwestern Mexico, has a highly diverse flora composition (Van Devender et al, 2010). Most of the state is located within the Sonoran Desert (Shreve and Wiggins, 1964) and there is still a great lack of knowledge about its biodiversity. For example, the growth potential of various plant species has not been yet documented (CONAFOR, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Germination and growth of the Sonoran Desert native trees under different agricultural conditions

Ochoa‐Meza

Montiel-GonzálezCristina

Islas

et al. 2022

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Objective: To evaluate the germination, survival, and growth of Sonoran Desert native trees, in a fertile agricultural soil, with irrigation and protection against herbivory. Design/Methodology/Approach: For six months, the germination, survival, and growth of five tree species (Parkinsonia microphylla, Olneya tesota, Prosopis velutina, Guaiacum coulteri, and Parkinsonia florida) were evaluated in agricultural soil, with and without drip irrigation, avoiding herbivory. Results: The irrigated species O. tesota and P. velutina had the highest germination percentage (χ2 = 398.941, p < 0.0001). Plant survival was above 62 % (χ2 = 21.196, p < 0.0035), except for G. coulteri and P. florida without irrigation, which did not survive. At six months, P. florida recorded the greatest height (p < 0.0001), while all the species without irrigation and G. coulteri with irrigation recorded the lowest heights. Likewise, P. velutina, P. florida, and O. tesota (p < 0.0001) registered the greatest canopy cover at six months, while non-irrigated plants of all species and irrigated G. coulteri had the least cover. Limitations/Implications: Further agronomic studies are necessary to enable the successful establishment of commercial forest plantations, increasing knowledge about environmental problems. Findings/Conclusions: The five species of native plants studied can be established by direct sowing, in agricultural soil and with drip irrigation.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Germination and growth of the Sonoran Desert native trees under different agricultural conditions

Ochoa‐Meza

Montiel-GonzálezCristina

Islas

et al. 2022

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“…In Table 1, we show the differences between N. asuncionesis, N. hispida sensu lato, N. origanifolia from northern Mexico based on descriptions in Hitchcock (1933a, b), Hickman (1993), Pérez Calix & Carranza-González (2005), Shreve & Wiggins (1964), and N. demissa, due to the closeness suggested in the Taylor (2012) As shown in the Table 1, the differentiation between N. asuncionensis and these other taxa is expressed mainly on geographic and habitat criteria, the presence of tiny, rather inconspicuous, capitate glandular trichomes beneath the more obvious non-glandular hairs, the small size of the corolla, the larger seeds, and the compact cushion-like growth form, or pulvinatiform. Some other traits shared with some taxa are the tricolored corolla and the infolded/revolute condition of the leaf margin to some degree, but in N. asuncionensis, this last character is extreme as it is not possible to lift and open the foliar blade without ripping it.…”

Section: Discussionmentioning

confidence: 99%

“…Comparison between Nama asuncionensis and morphologically similar taxa, taken from descriptions inShreve & Wiggins (1964),Hickman (1993),Pérez Calix &Carranza-González (2005), andTaylor (2012).…”

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confidence: 99%

A new species of Nama (Namaceae) from the Vizcaino Desert, Mexico

Luz¹,

Rebman²,

Narváez³

2023

Bot. Sci.

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Background: Although most of the Nama taxa grow on sandy substrates, none of them is restricted to the coastal dune environment. A small population of a unique looking taxon was found on the Pacific coast of the Baja California peninsula, which is here presented as a new species. Question and/or Hypothesis: In the morphological analysis in the individuals of a putative new taxon, some peculiarities stand out, such as a suffruticose herbaceous perennial growth form with erect and compact branching, featuring a small cushion, unlike the rest of the known species, which are rather procumbent, or erect in form. It also has revolute leaf margins in the blade. Studied Species: Nama asuncionensis sp. nov. (Namaceae) and morphologically similar species. Study Site: Central Pacific coast of Baja California, Mexico. Method: Through bibliographic consultation, review of herbarium specimens, and photographs, a comparative morphological analysis was carried out with other Nama species of the peninsula and mainland Mexico. Results: Based on the comparative analyses, Nama asuncionensis is here presented and illustrated as a new species. Conclusions: Nama asuncionensis is a micro-endemic species restricted to the Pacific coastal environment of the peninsula. We propose that this new taxon be included in the Eunama section of the genus based on its morphological characteristics, including a membranous loculicidal dehiscent capsule, free styles, and sepals divided to the base. This taxon seems to be limited to a narrow coastal strip, with high relative humidity, where it develops its fresh leaves and flowers during the mild season.

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“…However, in the last four decades, at least 11 new species as been discovered for Mexico , Estrada et al 2005, Rzedowski 2015. In Mexico, the knowledge of this genus is based mainly on Barneby´s monographic work (1964), but also from regional floristic studies from the southern (Rzedowski 2010, McVaugh 1987) and northern regions (Shreve & Wiggins 1964, Wiggins 1980, Correll & Johnston 1970, Henrickson & Johnston 1997, Villarreal 2001, Estrada et al 2010, Estrada et al 2014, and from global studies focusing on legume phytogeography and diversity (Sousa & Delgado 1998). The most recent eleven new species of Astragalus discovered in Mexico are characterstically isolated species with highly restricted distributions, and in most of these cases, only consists of the type locality.…”

Section: Introductionmentioning

confidence: 99%

Untitled

2023

Phytotaxa

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Astragalus is the most diverse genus within flowering plants with almost 2500 species, it is widely distributed around the world, very abundant in temperate regions of the Northern Hemisphere, in central and western Asia, Turkey, Iran, and Afghanistan, central Asia, Europe, Mongolia, Siberia, northeastern China, and Japan. In the American continent it is especially abundant in Canada, western United States, Mexico, and South America. Given the diversity of Astragalus species present in Mexico, the recent description of at least 15 new species for this country, the absence of a recent study that encompasses all the new findings and that the last general study for Mexico dates back almost 60 years, we consider necessary a new taxonomic synopsis that encompasses all the new information, which is presented here. The study records 102 species of Astragalus in Mexico. This work is based essentially on the review of collections of specimen samples, type specimens in national and foreign herbaria, data bases, and the collection of specimens of this genus by the authors in the last 40 years and that covers practically the entire area where this genus is distributed in Mexico. In this study we recorded 102 species and 46 infraspecific taxa; seventy one species and 17 varieties are endemic to Mexico. Baja California (32), Chihuahua (25), Durango (23), Sonora ( 22), Coahuila (20), San Luis Potosí ( 17), Nuevo León (17), and Zacatecas (15) are the states with the greatest species richness. In Mexico, the diversity of Astragalus species decreases from north to south and from west to east. Most of the species of Astragalus in Mexico are distributed in the mountains, followed by low and arid plains, including coastal dunes, those last ones, exclusively of the northwestern region. There are no records of any Astragalus species in Campeche, Tabasco, Quintana Roo or Yucatan. The dichotomous keys are based mainly on the color of flowers, the shape of the pod and if the fruit is sessile or stipitate. For each species is included also a morphological description, habitat, altitudinal range, and distribution map.

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Vegetation and Flora of the Sonoran Desert.

Cited by 126 publications

References 0 publications

Germination and growth of the Sonoran Desert native trees under different agricultural conditions

Germination and growth of the Sonoran Desert native trees under different agricultural conditions

A new species of Nama (Namaceae) from the Vizcaino Desert, Mexico

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