[Botany • 2017] Magnolia montebelloensis • A New Species in Section Magnolia from Lagunas de Montebello National Park, Chiapas, México, with A Key to Magnoliaceae of Chiapas ---ScRaBBlE

Magnolia montebelloensis   A.Vázquez & Pérez-Farr.

 Vázquez-García, Pérez-Farrera, Gómez-Domínguez, Muñiz-Castro & Sahagún-Godínez, 2017

DOI: 10.11646/phytotaxa.328.2.1 

Abstract

A new species of Magnolia, from the Lagunas de Montebello National Park, in the central highlands of Chiapas, Mexico, is described and illustrated. Magnolia montebelloensis belongs to section Magnolia; it differs from M. poasana in its smaller habit, densely pubescent terminal twig internodes, stipules and spathaceous bracts, shorter peduncular internodes and more numerous stamens. A key, an ecological and a conservation assessment of the eight Chiapan species of Magnoliaceae are included. Magnolia montebelloensis grows in montane rain forest and is contrasted with other Chiapan Magnolia species regarding their climate and vegetation preferences. It was assessed as critically endangered (CR) according to IUCN B1ab(ii,iii) and B2ab(iii) criteria. Half of Magnolia species in Chiapas occur in protected natural areas, and thus immediate action is required to protect the other four species, M. faustinomirandae, M. mayae, M. sharpii and M. zamudioi. Seven out of the eight Magnolia species (88%) are not found in ex-situ collections despite being endangered or critically endangered.

Keywords: Magnolia guatemalensis, Magnolia hondurensis, Magnolia poasana, “Tajchack” (Tzeltal language), Magnoliids

FIGURE 4. Magnolia montebelloensis. A. Flower after male phase. B. Flower manually forced open with stamens removed. C. Flower bud with densely hirsute spathaceous bract and early vegetative buds. D. Leaf stipule in late vegetative bud. E. Gynoecium with early axillary leaf buds and terminal internode; sepals, petals and stamens removed. F. Developing fruit. G–H. Fruits during dehiscence. Illustration by Esaú Vázquez-Verdejo. A–C & E from the holotype. D, F–G from Vázquez-García et al. 10107; H from Vázquez-García et al. 10108.

FIGURE 2. Magnolia montebelloensis. A. Tree, standing at the base Miguel Muñiz & Antonio Vázquez. B. Stipule on late leaf bud. C. Leaves. D. Flower bud with spathaceous bract and early axillary leaf buds. E–F. Flowers forced open with and without stamens, respectively. G. Flower after male phase. H. Developing gynoecium, with axillary leaf buds. I. Developing fruit. Photographs by Antonio Vázquez, A–C & I from Vázquez-García et al. 10107; & D–H, from the holotype.

Magnolia montebelloensis A.Vázquez & Pérez-Farr., sp. nov.

Eponymy:—This species is named after the Lagunas de Montebello National Park, the type locality. 

J. Antonio Vázquez-García, Miguel Ángel Pérez-Farrera, Héctor Gómez-Domínguez, Miguel Ángel Muñiz-Castro and Eduardo Sahagún-Godínez. 2017. Magnolia montebelloensis, A New Species in Section Magnolia from Lagunas de Montebello National Park, Chiapas, México, with a key to Magnoliaceae of Chiapas.  Phytotaxa. 328(2); 101-114. DOI: 10.11646/phytotaxa.328.2.1

ResearchGate.net/publication/320465251_Magnolia_montebelloensis_a_new_species_in_section_Magnolia_from_Lagunas_de_Montebello_National_Park_Chiapas_Mexico

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

من هنا

او

من هنا

شاهد هذا الفيديو القصير لطريقة التحميل البسيطة

منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات

كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا

شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا

رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا

تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.

[Botany • 2018] Magnolia mercedesiarum (subsect. Talauma, Magnoliaceae) • A New Andean Species from northern Ecuador, with Insights Into Its Potential Distribution ---ScRaBBlE

Magnolia mercedesiarum  D.A.Neill, A.Vázquez & F.Arroyo

in Vázquez-García, Neill, Shalisko, et al., 2018. 

   DOI: 10.11646/phytotaxa.348.4.2 

Abstract

Magnolia mercedesiarum, a new species from the eastern slopes of the Andes in northern Ecuador, is described and illustrated, and a key to Ecuadorian Magnolia (subsect. Talauma) is provided. This species differs from M. vargasiana in having broadly elliptic leaves that have an obtuse base vs. suborbicular and subcordate to cordate, glabrous stipular scars, more numerous lateral veins per side and fewer stamens. It also differs from M. llanganatensis in having leaf blades broadly elliptic vs. elliptic, longer petioles, less numerous lateral leaf veins per side, larger fruits and more numerous petals and carpels. Using MaxEnt species distribution models and IUCN threat criteria, M. mercedesiarum has a potential distribution area of less than 3307 km² and is assessed as Endangered (EN): B1 ab (i, ii, iii). The relevance of systematic vegetation sampling in the discovery of rare species is highlighted.

Keywords: Magnoliids, Guacamayos; Antisana; Sumaco-Galeras; Napo; Orellana; Sucumbíos

FIGURE 1. Magnolia mercedesiarum.
A. Flower bud. B-C. Fruit before and during dehiscence. D. Flowering and fruiting branch. E. Flower (forced to open from mature flowerbud). F. Stamens. All from the type material.

Drawing by Efrén Merino Santi.

FIGURE 2. Magnolia mercedesiarum. A. Tree. B. Flower (forced to open from mature flowerbud). C. Leaf and lateral veins. D. Flower bud. E. Fruit before dehiscence.

Photographs A and E by Efren Merino-Santi. B, C and D. by Antonio Vázquez. A tree. B and E from the holotype. C and D from Vázquez et al. 10126. 

FIGURE 3. Magnolia mercedesiarum. A.-B. Open small fruit with eight carpels. C and D. Open fruit of nine carpels. E.-F. Open fruit of ten carpels.

Illustration by R. Efren Merino- Santi, all based on the type material. 

Magnolia mercedesiarum D.A.Neill, A.Vázquez & F.Arroyo, sp. nov.  

Magnolia mercedesiarum is similar to M. vargasiana but differs in having broadly elliptic leaves that area obtuse at the base vs. suborbicular and subcordate to cordate, glabrous stipular scars, more numerous lateral veins per side and fewer stamens. It is also similar to M. llanganatensis in having similar size of flowers and glabrous leaves; however, it differs from the latter in having leaf blades broadly elliptic vs. elliptic, longer petioles (2.0–) 4.0–8.5 vs. 1.0–1.5 cm, fewer lateral veins per side 9–10 vs. 16–17, more numerous petals (8 vs. 6) and carpels (8–10 vs. 4–6) and larger fruits (3.8–5.0 × 2.7–3.6 cm vs. 3.0 × 2.0 cm; Table 2).

....

Eponymy:— The species is named in honour of two Ecuadorian women named Mercedes who have contributed to botanical science and conservation in their native country: Mercedes Asanza, professor at the Universidad Estatal Amazónica, administrative curator of the ECUAMZ herbarium at that university, and specialist in taxonomy and ecology of ferns; and Mercedes Mamallacta, a Kichwa ethnobotanist from Archidona, Napo Province, gardener, native plant propagator and inheritor and guardian of millennia of Kichwa plant lore.

Ethnobotany:— No uses are recorded for the species in the type locality. However, according to informant Antonio Naranjo (Cerón & Ayala 9896, from Río Due), the plant is known as “orejas de burro” (donkey ears). It is aromatic, and leaves mixed with urine and salt are used to clean sick animals.

Notes:— Magnolia mercedesiarum is the first species of Magnolia described from the eastern slopes of the Andes in northern Ecuador; it is the third confirmed species of Magnolia in Napo Province after Magnolia pastazaensis and M. “napoensis” ined. (Vázquez-García et al. 2016a), the last two at lower elevation and sympatric at Jatun Sacha Biological Station. Its occurrence in the Due River area represents the second species of Magnolia recorded from Sucumbíos Province after M. neillii in the Amazon lowlands of northeastern Ecuador (Vázquez-García et al. 2016a).

  

J.-Antonio Vázquez-García, David A. Neill, Viacheslav Shalisko, Frank Arroyo and R Efrén Merino-Santi. 2018. Magnolia mercedesiarum (subsect. Talauma, Magnoliaceae): A New Andean Species from northern Ecuador, with Insights Into Its Potential Distribution.  Phytotaxa. 346(4); 254–268.  DOI: 10.11646/phytotaxa.348.4.2
 researchgate.net/publication/324824414_Magnolia_mercedesiarum_a_new_Andean_species_from_northern_Ecuador

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

من هنا

او

من هنا

شاهد هذا الفيديو القصير لطريقة التحميل البسيطة

منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات

كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا

شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا

رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا

تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.