Two New Species of Lauraceae from Ecuador

Phytotaxa ◽  
2018 ◽  
Vol 346 (2) ◽  
pp. 180 ◽  
Author(s):  
WALTER A. PALACIOS
Keyword(s):  
New Species ◽  
Leaf Base ◽  
Two New Species ◽  
Young Leaves

Two species of Lauraceae of Ecuador are described: Aniba magnifica and Ocotea granulosa. Aniba magnifica is characterized by its large vegetative parts and its dense strigulose indumentum on the underside of its young leaves, inflorescences and bracts. Ocotea granulosa is distinguishable by the dense strigulose indumentum, mixed with amorphous blackish granules on the underside of the young leaves, peduncles, pedicels and receptacles, and by a flat or slightly recurved leaf base.

scholarly journals New species and new records of Artabotrys (Annonaceae) from peninsular Thailand

PhytoKeys ◽  
2020 ◽  
Vol 151 ◽  
pp. 67-81
Author(s):  
Junhao Chen ◽  
Wichan Eiadthong
Keyword(s):  
New Species ◽  
New Records ◽  
Leaf Base ◽  
Two New Species ◽  
Flora Of Thailand

Two new species of Artabotrys (Annonaceae) are described from peninsular Thailand. Artabotrys longipetalus J.Chen & Eiadthong, sp. nov., is unique among Artabotrys species in Thailand in having linear petals, relatively long flower pedicels and sessile monocarps. Artabotrys insurae J.Chen & Eiadthong, sp. nov., resembles Artabotrys uniflorus (Griff.) Craib, but can be distinguished by its oblique leaf base, flat petal blades, apiculate anther connective apex and the presence of a monocarp stipe. In addition, two new records for the Flora of Thailand are reported, viz. Artabotrys crassifolius Hook.f. & Thomson and Artabotrys pleurocarpus Maingay ex Hook.f. & Thomson; both species are so far only known from peninsular Thailand. A key to the 20 species of Artabotrys in Thailand is provided.

Revision of Begonia (Begoniaceae) in Bidoup-Nui Ba National Park, Southern Vietnam, including two new species

Phytotaxa ◽  
2021 ◽  
Vol 496 (1) ◽  
pp. 77-89
Author(s):  
CHE-WEI LIN ◽  
TIAN-CHUAN HSU ◽  
HONG TRUONG LUU ◽  
ICH LE PHUOC THANH NGUYEN ◽  
TSUNG-YU ALECK YANG ◽  
...  
Keyword(s):  
New Species ◽  
National Park ◽  
Leaf Base ◽  
Montane Forests ◽  
Northern Thailand ◽  
Field Surveys ◽  
Southern Vietnam ◽  
Two New Species ◽  
Leaf Species

The Begonia species occurring in Bidoup-Nui Ba National Park (Lam Dong Province, southern Vietnam) are reviewed based on recent floristic field surveys. Five species were recognized from the montane forests, and two of which are new to science. The new species belong to Begonia sect. Platycentrum and are named as B. hongiaoensis C.W.Lin, T.C.Hsu & Luu and B. lamdongiana C.W.Lin, T.C.Hsu & Luu, repectively. Begonia hongiaoensis most closely resembles B. siamensis Gagnep from northern Thailand. Both species have a rhizomatous habit and bear ovate leaves. However, the new species differs by its stoloniferous habit, shallowly cordate leaf base and 5-tepaled pistillate flowers. Begonia lamdongiana is similar to B. coelocentroides Y.M.Shui & Z.D.Wei, a hairy leaf species of the same section in Yunnan of China, but is markedly distinct in its glabrous petioles, inflorescences, pedicels and ovaries, and larger bracts.

Two new species of Nilssoniopteris (Bennettitales) from the Middle Jurassic of Sandaoling, Turpan-Hami Basin, Xinjiang, NW China

2018 ◽  
Vol 92 (4) ◽  
pp. 525-545 ◽  
Author(s):  
Yi Zhao ◽  
Shenghui Deng ◽  
Ping Shang ◽  
Qin Leng ◽  
Yuanzheng Lu ◽  
...  
Keyword(s):  
New Species ◽  
Middle Jurassic ◽  
Evolutionary History ◽  
Generic Diagnosis ◽  
Leaf Base ◽  
Abaxial Epidermis ◽  
Venation Pattern ◽  
Closed Loops ◽  
Climatic Regions ◽  
Two New Species

AbstractTwo new species of Nilssoniopteris of the order Bennettitales, Nilssoniopteris hamiensis Zhao and Deng, new species and Nilssoniopteris crassiaxis Zhao and Deng, new species, are established from the Xishanyao Formation (Middle Jurassic) of Sandaoling Coal Mine in Hami, Xinjiang, China, based on leaf macromorphology and cuticular features. Nilssoniopteris hamiensis n. sp. is characterized by its varied leaf shapes and trichome bases of 1–4 cells on the abaxial epidermis. Nilssoniopteris crassiaxis n. sp. is characterized by its broad midrib (especially near the leaf base) and trichome bases of 1–3 cells on the abaxial epidermis. Both species possess unique venation patterns that are not only simple and free, but also forked and merged to form closed loops. These anastomosing veins are even more complicated in N. crassiaxis n. sp. in that the veins can fork once, twice, or even three times, the forked veins can later merge with each other or with an adjacent vein to form a closed loop, which may later further disjoin. The generic diagnosis of Nilssoniopteris is thus accordingly emended, particularly in the venation pattern. In addition, the stratigraphic and geographical distributions of all 45 Jurassic Nilssoniopteris species worldwide have been summarized and analyzed to better understand their brief evolutionary history, indicating that Nilssoniopteris might be able to grow not only in subtropical regions as the living cycads are, but also in warm climatic regions.

A Synopsis of Dicliptera (Acanthaceae) in Brazil, with the Description of Two New Species

2020 ◽  
Vol 45 (2) ◽  
pp. 340-348
Author(s):  
James Lucas da Costa-Lima ◽  
Earl Celestino de Oliveira Chagas
Keyword(s):  
New Species ◽  
South America ◽  
The State ◽  
Northeastern Brazil ◽  
Mato Grosso ◽  
The North ◽  
New Synonyms ◽  
Two New Species ◽  
Mato Grosso Do Sul ◽  
A New Species

Abstract—A synopsis of Dicliptera (Acanthaceae) for Brazil is presented. Six species are recognized: Dicliptera ciliaris, D. sexangularis, and D. squarrosa, widely distributed in South America; D. purpurascens, which ranges from the North Region of Brazil (in the state of Acre) to eastern Bolivia; D. gracilirama, a new species from the Atlantic Forest of northeastern Brazil; and D. granchaquenha, a new species recorded in dry and semideciduous forests in Bolivia and western Brazil, in the state of Mato Grosso do Sul. Furthermore, we propose new synonyms and designate lectotypes for eleven names. An identification key to the six accepted Dicliptera species in Brazil is provided.

Two New Species of Aira (Poaceae) from the Iberian Peninsula and the Balearic Islands

2020 ◽  
Vol 45 (1) ◽  
pp. 75-84
Author(s):  
Llorenç Sáez ◽  
Javier López-Alvarado ◽  
Pere Fraga ◽  
Regina Berjano ◽  
M. Ángeles Ortiz ◽  
...  
Keyword(s):  
Risk Assessment ◽  
New Species ◽  
Iberian Peninsula ◽  
Diploid Species ◽  
Balearic Islands ◽  
Similar Species ◽  
Chromosome Counts ◽  
Two New Species

Abstract—Two new diploid species, Aira minoricensis and Aira hercynica, are described and illustrated, along with chromosome counts, risk assessment, distribution and habitat, phenology, and comparisons with morphologically similar species. A comparative table and a key for the species of Aira for the Iberian Peninsula and the Balearic Islands are provided to assist in the identification of these overlooked species, and their relationships to other taxa are discussed.

Palaeontology, taxonomic revision and variability of some species of the genus Gassendiceras Bert et al., 2006 (Ammonitina, Upper Barremian) from southeastern Franc

2013 ◽  
Vol 63 (3) ◽  
pp. 355-429 ◽  
Author(s):  
Didier Bert ◽  
Stéphane Bersac ◽  
Gérard Delanoy ◽  
Léon Canut
Keyword(s):  
New Species ◽  
Intraspecific Variability ◽  
Taxonomic Revision ◽  
Two New Species

Abstract Bed-by-bed sampling of twelve Barremian sections in southeastern France from pelagic basin (Vocontian Basin) to neritic platforms (Arc of Castellane, Arc of Nice and Provencal Domain) has enabled the collection of isochronous samples of the ammonite genus Gassendiceras. Three poorly known species of the Toxancyloceras vandenheckei Zone (Upper Barremian) are revised: G. alpinum, G. multicostatum and G. hoheneggeri; two new species are described (G. rebouleti nov. sp. and G. bosellii nov. sp.). The intraspecific variability of particular species was recognised. This variability is between slender peramorphic and robust paedomorphic extreme morphologies, with the presence of all intermediates.

New orchid species (Orchidaceae) in the flora of Laos

2019 ◽  
pp. 25-40
Author(s):  
L. V. Averyanov ◽  
Khang Sinh Nguyen ◽  
T. V. Maisak ◽  
Hiep Tien Nguyen ◽  
N. L. Orlov ◽  
...  
Keyword(s):  
New Species ◽  
Related Species ◽  
Field Studies ◽  
Regional Literature ◽  
Orchid Species ◽  
Two New Species

This paper continues the publication of new data obtained during field studies in remote and poorly studied regions of Laos in 2015–2018. It provides descriptions of two new species (Bulbophyllum brachyscapum Aver. and Sunipia saccata Aver.), emended descriptions of two previously published but insufficiently known species (Cleisostoma verrucosum Aver., Oberonia vesiculifera Aver.) and reports of eight species newly recorded in the flora of Laos (Biermannia calcarata Aver., Bulbophyllum farreri (W. W. Sm.) Seidenf., Didymoplexiella trichechus (J. J. Sm.) Garay, Eria eriopsidobulbon C. S. P. Parish et Rchb. fil., Habenaria ciliolaris Kraenzl., Liparis caudata Aver. et K. S. Nguyen, Odontochilus umbrosus (Aver.) Ormerod, and Porpax ustulata (C. S. P. Parish et Rchb. fil.) Rolfe). Appropriate citations of regional literature, colour illustrations, data on types and distribution, descriptions, etymology, as well as notes on taxonomy and related species are provided for the studied species.

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