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[Ornithology • 2017] Myzomela irianawidodoae • A Colourful New Species of Myzomela Honeyeater from Rote Island in eastern Indonesia ---ScRaBBlE

Myzomela irianawidodoae Prawiradilaga, Baveja, Suparno, Ashari, Ng, Gwee, Verbelen & Rheindt, 2017  photo:   Philippe Verbelen  e-journ...

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Showing posts with label Bignoniaceae. Show all posts
Showing posts with label Bignoniaceae. Show all posts

Wednesday, March 20, 2019

[Botany • 2018] Taxonomic Revision of Pachyptera (Bignonieae, Bignoniaceae) ---ScRaBBlE


(B) Pachyptera aromatica,  (I) Pincarnata
(F) Perythraea (N)  Pkerere 

in Francisco & Lohmann, 2018. 

Abstract
Pachyptera DC. is a small genus of neotropical lianas included in tribe Bignonieae (Bignoniaceae). The genus has a complicated taxonomic history but currently includes species distributed from Belize to Southern Amazon. Pachyptera is characterised by four main synapomorphies, namely, a papery peeling bark, prophylls of the axillary buds organised in a series of three, patelliform glands arranged in lines in the upper portions of the calyx and corolla tube. Furthermore, members of the genus also have stems with four phloem wedges in cross-section and conspicuous extrafloral nectaries between the interpetiolar region and at the petiole apex, although these characters are also shared with other genera of tribe Bignonieae. Here, we present a taxonomic revision of Pachyptera, which includes a complete list of synonyms, detailed morphological descriptions of species and an identification key, as well as information on the habitat, distribution and phenology, nomenclatural notes, taxonomic comments and illustrations of all the species. In addition, we designate three lectotypes, propose one new combination, raise one variety to species status and describe a new species. After these adjustments, a Pachyptera with five well-defined species is recognised.

Keywords: Amazon, Flora, Pachyptera kerere, Neotropics, Taxonomy


Figure 1. Schematic diagram summarising phylogenetic relationships within Pachyptera, with morphological characters mapped on the diagram.
Names of the terminal taxa indicate the taxon in which these species were previously included. The taxonomic updates proposed here are also indicated. Relationships depicted follow Francisco and Lohmann (submitted).


Figure 2. Sample of morphological features of Pachyptera.
A–D Pachyptera aromatica: A Inflorescence B Frontal view of flowers C Detail of inflorescence and flowers, showing calyx partition D Interpetiolar region of stem with extra floral nectaries (EFNs) and prophylls of the axillary buds 3-seriated, triangular and minute
E–F Perythraea: E Inflorescence F Frontal view of flowers
G–L Pincarnata: G Stem with tendril surrounding a tree H Interpetiolar region of stem with EFNs and prophylls of the axillary buds flattened, ensiform and seriated I Inflorescence J Frontal view of flower K Pink patelliform glands on flower lobes L Detail of calyx
M–Q Pkerere: M Stem cross-section with four phloem wedges N Inflorescence O Frontal view of flower P White patelliform glands on flower lobes Q Detail of calyx.


Jessica Nayara Carvalho Francisco and Lúcia G. Lohmann. 2018. Taxonomic Revision of Pachyptera (Bignonieae, Bignoniaceae). PhytoKeys. 92: 89-131.  DOI: 10.3897/phytokeys.92.20987

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل
او
شاهد هذا الفيديو القصير لطريقة التحميل البسيطة


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 • 2017] Reestablishment of Mansoa ventricosa (Bignonieae, Bignoniaceae) Based on Molecular and Morphological Data ---ScRaBBlE


  Mansoa ventricosa A.H. Gentry

 Francisco & Lohmann, 2017

Abstract

Pachyptera ventricosa is a rare and poorly known species of liana that occurs in wet forests from the state of Pará, in Brazil. This species is characterized by features that are diagnostic of four genera within tribe Bignonieae: Mansoa, Martinella, Pachyptera, and Tanaecium. The currently recognized P. ventricosa was originally described in Mansoa, but subsequently transferred to Pachyptera based on morphological similarities. In this study, we use a combination of molecular and morphological data to evaluate the current placement of P. ventricosa. We conduct a broad scale molecular phylogenetic study based on 114 sequences of ndhF and PepC representing 112 taxa and members of all genera recognized in Bignonieae. In addition, we also conduct detailed morphological studies of selected characters. Our molecular phylogenetic study indicates that the currently recognized Pachyptera ventricosa is more closely related to members of Mansoa than to Pachyptera. New morphological data corroborates the molecular phylogenetic placement indicating that this species is indeed best placed within Mansoa. We here propose the reestablishment of Mansoa ventricosa, and show the detailed description for this species, along with new distribution information, and the first illustration for this taxon.

Keywords: Amazonian biota, Brazilian flora, generic circumscription, Eudicots


Inflorescence of Mansoa ventricosa.
Photo A by Annelise F. Nunez.

Mansoa ventricosa A.H. Gentry (1979 [1980]: 783). 
Pachyptera ventricosa (A.H. Gentry) L.G. Lohmann (2014: 456) 

Type:— BRAZIL. Pará: Along the Belém-Brasilia highway, km 345, 9 August 1956, B. Maguire et al. 56083 (holotype, MO-2232816!; isotypes, COL-110166 not seen, MG-136673, NY-328882!, US-3189002 image!).

Pollination:— The corolla morphology is classified as a variant of the Martinella type (Gentry 1974), and is likely associated with bat pollination (Alcantara & Lohmann 2010, Machado & Vogel 2004). This species shares tricolpate coarse reticulate pollen grains with Martinella obovata (Gentry & Tomb 1979) suggesting convergent evolution of pollen type. Such convergence has also been observed in other floral traits such as the purple colored flower, thick corolla texture, open mouth, and subexserted anthers. 

Distribution and habitat:— Mansoa ventricosa is endemic to Northeastern Brazil (Maranhão, Pará), where it occurs in wet evergreen forests (Figure 5). Prior to this work, this species was only known from the holotype collected in the Brazilian state of Pará, a paratype collected in the Brazilian state of Maranhão (G.T. Prance 58978; UB and NY), and one collection from 1980 (D.C. Daly 774; MG, MO, and NY). Two additional specimens were collected during our fieldwork in Pará, (Brazil), expanding the distribution of this species to Santarém and Belterra.

Taxonomic notes:— Mansoa ventricosa is easily recognized by a combination of cylindrical and striated branchlets with “V” shaped interpetiolar clusters of glands, subulate prophylls of the axillary buds, and leaflets with nectaries grouped at the base of the abaxial surface. Reproductive characters that can help in its identification are the thyrsoid inflorescences, calyx with patelliform glands clustered next to the margin, corolla campanulate, with tube light purple, densely puberulous outside, with patelliform glands at the upper portion of the apex tube, androecium subexserted with yellow anthers, and exserted gynoecium. 


Jessica Nayara Carvalho Francisco and Lucia G Lohmann. 2017.  Reestablishment of Mansoa ventricosa (Bignonieae, Bignoniaceae) Based on Molecular and Morphological Data. Phytotaxa. 327(2); 141–156. DOI: 10.11646/phytotaxa.327.2.3


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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل
او
شاهد هذا الفيديو القصير لطريقة التحميل البسيطة


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] Taxonomic Revision of Pachyptera (Bignonieae, Bignoniaceae) ---ScRaBBlE


(B) Pachyptera aromatica,  (I) Pincarnata
(F) Perythraea (N)  Pkerere 

in Francisco & Lohmann, 2018. 

Abstract
Pachyptera DC. is a small genus of neotropical lianas included in tribe Bignonieae (Bignoniaceae). The genus has a complicated taxonomic history but currently includes species distributed from Belize to Southern Amazon. Pachyptera is characterised by four main synapomorphies, namely, a papery peeling bark, prophylls of the axillary buds organised in a series of three, patelliform glands arranged in lines in the upper portions of the calyx and corolla tube. Furthermore, members of the genus also have stems with four phloem wedges in cross-section and conspicuous extrafloral nectaries between the interpetiolar region and at the petiole apex, although these characters are also shared with other genera of tribe Bignonieae. Here, we present a taxonomic revision of Pachyptera, which includes a complete list of synonyms, detailed morphological descriptions of species and an identification key, as well as information on the habitat, distribution and phenology, nomenclatural notes, taxonomic comments and illustrations of all the species. In addition, we designate three lectotypes, propose one new combination, raise one variety to species status and describe a new species. After these adjustments, a Pachyptera with five well-defined species is recognised.

Keywords: Amazon, Flora, Pachyptera kerere, Neotropics, Taxonomy


Figure 1. Schematic diagram summarising phylogenetic relationships within Pachyptera, with morphological characters mapped on the diagram.
Names of the terminal taxa indicate the taxon in which these species were previously included. The taxonomic updates proposed here are also indicated. Relationships depicted follow Francisco and Lohmann (submitted).


Figure 2. Sample of morphological features of Pachyptera.
A–D Pachyptera aromatica: A Inflorescence B Frontal view of flowers C Detail of inflorescence and flowers, showing calyx partition D Interpetiolar region of stem with extra floral nectaries (EFNs) and prophylls of the axillary buds 3-seriated, triangular and minute
E–F Perythraea: E Inflorescence F Frontal view of flowers
G–L Pincarnata: G Stem with tendril surrounding a tree H Interpetiolar region of stem with EFNs and prophylls of the axillary buds flattened, ensiform and seriated I Inflorescence J Frontal view of flower K Pink patelliform glands on flower lobes L Detail of calyx
M–Q Pkerere: M Stem cross-section with four phloem wedges N Inflorescence O Frontal view of flower P White patelliform glands on flower lobes Q Detail of calyx.


Jessica Nayara Carvalho Francisco and Lúcia G. Lohmann. 2018. Taxonomic Revision of Pachyptera (Bignonieae, Bignoniaceae). PhytoKeys. 92: 89-131.  DOI: 10.3897/phytokeys.92.20987

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل
او
شاهد هذا الفيديو القصير لطريقة التحميل البسيطة


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.

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