Taxonomic Studies of Diospyros (Ebenaceae) from the Malagasy Region. VII. Revision of Diospyros sect. Forbesia in Madagascar and the Comoro Islands

2021 ◽  
Vol 106 ◽  
pp. 72-110
Author(s):  
Alexander G. Linan ◽  
Porter P. Lowry II ◽  
George E. Schatz

A recent molecular phylogenetic study revealed that Diospyros L. sect. Forbesia F. White, originally circumscribed to encompass two species from Africa and several from the Mascarene Islands (White, 1980), also includes a group of species endemic to Madagascar. The taxonomy of the Malagasy members of the section has not been examined since Perrier de la Bâthie’s 1952 treatment in the Flore de Madagascar et des Comores, and in the intervening seven decades, numerous specimens have been collected that cannot be identified based on the key provided. This revision presents a significantly updated taxonomy of Diospyros sect. Forbesia in the Malagasy region in which 18 species are recognized, 14 of which are newly described and illustrated, including one new species restricted to Mayotte Island in the Comoro archipelago. An identification key is provided as well as IUCN risk of extinction assessments, which indicate that two species are Critically Endangered, four are Endangered, and seven are Vulnerable, while one is Near Threatened and four are Least Concern. A full description is provided for each species, along with color photos; each of the new species is also illustrated with a line drawing.

Zootaxa ◽  
2019 ◽  
Vol 4543 (1) ◽  
pp. 127 ◽  
Author(s):  
SEUNGGWAN SHIN ◽  
HEUNGSIK LEE ◽  
SEUNGHWAN LEE

Here we propose a new monophyletic subfamily, the Chaetosciarinae, based on previous morphological cladistic and molecular phylogenetic studies. This new subfamily includes the genera Chaetosciara Frey, Mouffetina Frey, Schwenckfeldina Frey, and Scythropochroa Enderlein. We also provide a definition of the new subfamily Chaetosciarinae and describe common morphological key characters. Three Korean Chaetosciarinae species in three genera are reported, all of which are new to Korea and one (Scythropochroa pseudoquercicola sp. nov.) of which is new to science. A previous molecular phylogenetic study designated Scy. pseudoquercicola as an unidentified species. Our study provides examined species information for members of this new subfamily to accompany the GenBank accession numbers published by a previous molecular phylogenetic study. Furthermore, we present a multigene molecular phylogenetic analysis for the Chaetosciarinae. 


Nematology ◽  
2021 ◽  
pp. 1-10
Author(s):  
Samira Aliverdi ◽  
Ebrahim Pourjam ◽  
Majid Pedram

Summary Ditylenchus acantholimonis n. sp. is described based on morphological, morphometric and molecular characters. It was isolated from the rhizosphere soil of Acantholimon sp. in Golestan province, Iran, and is mainly characterised by having four lines in the lateral field, a pyriform to bottle-shaped offset pharyngeal bulb, post-vulval uterine sac 36.6-56.1% of the vulva to anus distance long, and a subcylindrical to conical tail with widely rounded tip. It is further characterised by short to medium-sized females, 480-617 μm long, with a fine stylet having small rounded knobs, V = 80.8-83.6, c = 11.0-13.8, c′ = 3.3-4.6, and males with 16.0-17.0 μm long spicules. The new species was morphologically compared with six species having four lines in their lateral field, rounded tail tip and comparable morphometric data namely: D. dipsacoideus, D. emus, D. exilis, D. paraparvus, D. sturhani, and D. solani. It was also compared with two species, D. ferepolitor and D. angustus, forming a maximally supported clade in the 18S tree. The phylogenetic analyses using the maximal number of Anguinidae and several Sphaerularioidea genera based upon partial 18S and 28S rDNA D2-D3 sequences revealed that Ditylenchus is polyphyletic. In the 18S tree, the new species formed a clade with D. ferepolitor (KJ636374) and D. angustus (AJ966483); in the 28S tree it formed a poorly supported clade with D. phyllobios (KT192618) and Ditylenchus sp. (MG865719).


PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e4137 ◽  
Author(s):  
Martin Cheek

Background Although many new species to science have been discovered from thousands of specimens resulting from botanical inventories to support conservation management in Cameroon in recent years, additional species remain to be formally evaluated taxonomically and described. These include species from genera which have been taxonomically neglected for many decades in Africa, such as Microcos. Methods This study is based mainly on herbarium specimens and field observations made in Cameroon during a series of botanical surveys. Herbarium material was examined with a Leica Wild M8 dissecting binocular microscope fitted with an eyepiece graticule. Principal Findings Microcos magnifica Cheek (Malvaceae-Grewioideae or Sparrmanniaceae) is described as an Endangered (EN B2 ab(iii)) new tree species from the submontane forests of Cameroon. It is illustrated and described, and its conservation status and taxonomic affinities are assessed. It is the first new Microcos described from Africa in more than 90 years and is unique on the continent in having sculptured fruits. Discussion A systematic revision, with a molecular phylogenetic study, of Microcos Burm. ex L. in Africa is necessary if the affinities of the species, including M. magnifica, are to be reliably established.


Sociobiology ◽  
2019 ◽  
Vol 66 (3) ◽  
pp. 408
Author(s):  
Itanna Oliveira Fernandes ◽  
Jacques Hubert Charles Delabie

The monophyly of Ponerinae was strongly supported by a detailed molecular phylogenetic study. Within the subfamily, substantial changes were yet done to the taxonomy of several genera, such as Cryptopone Emery, and after phylogenetic and morphological considerations, the genus Cryptopone was revived. Cryptopone is a moderately large genus of pantropical distribution, with 25 described species and subspecies, with its diversity centered mostly in East and Southeast Asia. In the New World, only four species were known until now, Cryptopone gilva (Roger), Cryptopone guianensis (Weber), Cryptopone holmgreni (Wheeler) and Cryptopone mirabilis (Mackay & Mackay). Since the Mackay and Mackay’s revision of 2010 of the genus Pachycondyla which included the species currently attributed to Cryptopone, no new species was added to Cryptopone genus in the New World. Recently an unidentified Cryptopone species was collected in the state of Rondônia, Brazil. The material here described was sampled by manual collection of soil in the Floresta Nacional do Jamari (FLONA Jamari). Four individuals belonging to the worker caste are hereafter described under the name of Cryptopone pauli sp. nov. Currently this ant is known only to a single locality in the state of Rondônia, Brazil. This is also the first record of this genus for that state. We present new records of Cryptopone for the Neotropical Region with some comments on its biology and an updated key to workers of the five species of Cryptopone currently known in the New World.


Nematology ◽  
2019 ◽  
Vol 21 (4) ◽  
pp. 435-444
Author(s):  
Mehrab Esmaeili ◽  
Ramin Heydari ◽  
Behrouz Golhasan ◽  
Weimin Ye

Summary Bealius pinus n. sp. is described and illustrated based on its morphological, morphometric, and molecular characters. The new species is characterised by a body length of 1040 (920-1124) μm (females) and 985 (990-1043) μm (males), lip region continuous, 7.2 (7.0-8.0) μm broad, 3.3 (3.0-4.0) μm high, stylet length 8.4 (7.0-9.0) μm or ca 1.0-1.3 times the lip region diam., lateral fields with five or six incisures, the outer incisures crenate and inner incisures weakly crenate, and excretory pore situated 156 (141-170) μm from the anterior end. The basal pharyngeal bulb has a short posterior extension projecting dorsally into the intestine. Post-uterine sac absent. Functional males common in the population, spicules 29 (28-30) μm long. Tail cylindrical with broadly rounded terminus in the female and conical, arcuate, completely enveloped by a well-developed bursa in the male. The new species is compared with two known species of the genus, B. bisulcus and B. pissodi. Molecular phylogenetic studies of the new species using partial sequences of small subunit (SSU) rDNA revealed that it forms a clade with several nematode species belonging to genera in the Sphaerularioidea, namely: Sphaerularia, Paurodontella, Nothotylenchus, and Deladenus.


Author(s):  
Ana Paula Nascimento Gomes ◽  
Michele Maria dos Santos ◽  
Natalie Olifiers ◽  
Roberto do Val Vilela ◽  
Mayara Guimarães Beltrão ◽  
...  

Zootaxa ◽  
2018 ◽  
Vol 4433 (2) ◽  
pp. 325 ◽  
Author(s):  
JOSEF MERTLIK ◽  
TAMÁS NÉMETH ◽  
ROBIN KUNDRATA

Complementary revisionary information is provided for the click-beetle genus Dima Charpentier, 1825 in the Balkan Peninsula. Five species are described as new for science: Dima bialookii sp. nov. (Greece), D. blazeji sp. nov. (Albania), D. gazureki sp. nov. (Albania), D. timfristosensis sp. nov. (Greece), and D. tomorrensis sp. nov. (Albania). The male of D. hirtipennis Platia, 2011 is described for the first time. Dima etoliensis Platia, 2012 syn. nov. is a subjective junior synonym of D. evritaniensis Schimmel & Platia, 2008. New specimens and distributional data are reported for D. assingi Schimmel & Platia, 2008, D. dalmatina Küster, 1844, D. elateroides Charpentier, 1825, D. evritaniensis, D. florinensis Platia, 2012, D. hirtipennis, D. hladilorum Schimmel, 1987, D. lebenbaueri Schimmel & Platia, 2008, D. macedonica Schimmel, 1993, D. marvani Mertlik & Dusanek, 2006, D. neumanni Platia, 2013, D. olympica Meschnigg, 1934, D. parnonensis Schimmel & Platia, 2008, D. pecoudi Fleutiaux, 1944, D. pelikani Mertlik, Németh & Kundrata, 2017, D. pelionensis Mertlik, Németh & Kundrata, 2017, D. vailatii Schimmel & Platia, 2008, and Dima sp. cf. orientalis Mertlik, Németh & Kundrata, 2017. Morphological variability in D. hladilorum is discussed. Figures of habitus and main diagnostic features are provided for all new species, D. evritaniensis from Nerosirtis surroundings in Panetolikó Mts. (i.e., type locality of D. etoliensis syn. nov.), and for the male of D. hirtipennis. Additionally, we update the distribution maps for the genus Dima in the Balkans based on the new findings. Currently, 37 described species of Dima are known from the Balkan Peninsula. We discuss the morphological diagnostic characters for Dima species and call for the molecular phylogenetic study for this group. 


Plants ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1697
Author(s):  
Yong-Xiu Song ◽  
Yan Xiao ◽  
Shuai Peng ◽  
Yi-Yan Cong ◽  
Guang-Wan Hu

Impatiens longshanensis (The LSID for the name Impatiens longshanensis is: 77219154-1) sp. nov. and I. lihengiana (The LSID for the name I. lihengiana is: 77219153-1) sp. nov., from Hunan, China, are described and illustrated here. The molecular phylogenetic study suggests that I. longshanensis and I. lihengiana should be placed in the I. sect. Impatiens. A detailed description, diagnostic characters between the two new species and allied species, pollen and seed morphology, and color photographs are provided. In addition, based on wide sampling, we found that the longifilamenta group, an endemic group to China, whose members have basal lobes of lateral united petals with long filamentous hairs, shows significant morphological variability. In this paper, we discuss the taxonomic significance of morphological characteristics within this group. Based on a literature review and observation of living materials in the field, an updated identification key for this group is also proposed.


PhytoKeys ◽  
2021 ◽  
Vol 179 ◽  
pp. 129-143
Author(s):  
Zhi Yang ◽  
Wei-Yin Jin ◽  
Bing Liu ◽  
David Kay Ferguson ◽  
Yong Yang

We collected an unusual new plant of Phoebe (Lauraceae) from southeastern Yunnan, China, which possesses more or less oblong leaves, paniculate inflorescences with strictly opposite lateral cymes, trimerous flowers with 4-locular stamens, and large fruits with tiny, equal, persistent tepals. Our molecular phylogenetic study based on nrITS, LEAFY and plastid matK sequences suggests that this species belongs to a clade of Phoebe including P. puwenensis, P. megacalyx, and P. macrocarpa. However, this species differs from the latter three species by subglabrous twigs, leaves and inflorescences (vs. pubescent twigs, leaves and inflorescences in the latter three species), larger fruits (5–8 cm long vs. 1–4 cm long in the latter three species), and smaller tepals (1–2.5 mm long vs. 5–15 mm long in the latter two species). As a result, Phoebe jinpingensis sp. nov. is described and illustrated here as new to science.


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