Gymnomitrion fissum (Gymnomitriaceae, Marchantiophyta) — a new species with fissured leaf surface from China

2017 ◽  
Vol 51 ◽  
pp. 274-280
Author(s):  
A. D. Potemkin ◽  
Yu. S. Mamontov ◽  
N. S. Gamova
Keyword(s):  
New Species ◽  
Cross Sections ◽  
Cell Walls ◽  
Leaf Surface ◽  
Outer Cell ◽  
Sem Images ◽  
Cell Lumen ◽  
A New Species ◽  
Surface Comparison

Study of selected specimens of Gymnomitrion collected by D. G. Long in Yunnan, China, revealed a new species, G. fissum Mamontov et Potemkin, sp. nov., with a fissured leaf surface. Comparison of SEM images of the leaf surface and leaf cross sections shows that the leaf surface of G. fissum is different from that of other known species with a superficially similar leaf surface, i. e. Mylia taylorii, M. verrucosa s. l. and Trabacellula tumidula. It has fissures around the cell lumen rather than grids and perforations. Outer cell walls of Gymnomitrion fissum are much thicker than in Mylia taylorii, M. verrucosa s. l. and Trabacellula tumidula, and their outer layers tend to be partly or completely caducous. G. fissum is related to the group of species assigned to the former genus Apomarsupella.

A New Species of Turnera (Turneraceae, Passifloraceae s. l.) from the Brazilian Cerrado

2020 ◽  
Vol 45 (4) ◽  
pp. 826-832
Author(s):  
Lamarck Rocha ◽  
Maria Mercedes Arbo
Keyword(s):  
New Species ◽  
Brazilian Cerrado ◽  
Distribution Map ◽  
Sem Images ◽  
Dark Blue ◽  
A New Species

Abstract—Turnera macrosperma, a new species from the Brazilian Cerrado, is described and illustrated. The new species belongs to the series Turnera and can be characterized by the white petals with dark blue/violet basal spot and large seeds with papillose aril. SEM images, distribution map, and comments on taxonomy and morphology are presented.

New species of Triplonychus Candèze and Globothorax Fleutiaux from Brazil (Coleoptera, Elateridae, Cardiophorinae)

Zootaxa ◽  
2011 ◽  
Vol 2831 (1) ◽  
pp. 1
Author(s):  
SIMONE POLICENA ROSA
Keyword(s):  
New Species ◽  
Sem Images ◽  
Three New Species ◽  
A New Species

Three new species of Triplonychus Candèze, T. cruspinosus sp. nov., T. crassifemoris sp. nov. and T. tibialatus sp. nov., and a new species of Globothorax Fleutiaux, G. latidens sp. nov., from Brazil are described. Illustrations, photographic and SEM images are presented. A review of the diagnostic generic characters and a key to the species of Triplonychus and Globothorax from Brazil are also given.

A new species and comparative morphology of Vesselowskya (Cunoniaceae)

2001 ◽  
Vol 14 (2) ◽  
pp. 175 ◽  
Author(s):  
Andrew C. Rozefelds ◽  
Richard W. Barnes ◽  
Belinda Pellow
Keyword(s):  
New Species ◽  
Cell Walls ◽  
New South ◽  
Comparative Morphology ◽  
Epidermal Cells ◽  
The Other ◽  
Abaxial Surface ◽  
South Wales ◽  
Central Column ◽  
A New Species

The vegetative and reproductive morphology of Vesselowskya Pampanini, southern marara, is described and illustrated in detail. The variation within V. rubifolia (F.Muell.) Pampanini sens. lat. is shown to be greater than has previously been recognised, with the differences identified supporting the recognition of a new segregate species, V. venusta Rozefelds, R.W.Barnes and Pellow sp. nov. Vesselowskya venusta occurs in the Barrington Tops Plateau of New South Wales and differs from V. rubifolia in possessing hairs on the abaxial surface of the sepals and lacking both a prominent distal connective protrusion on the anthers and colleters at the base of the stipules. The two Vesselowskya species are dioecious with a vestigial ovary in staminate flowers and reduced stamens in pistillate flowers. Dioecy is more pronounced in Vesselowskya, than in some Weinmannia species, and in both genera is expressed through reduction in the size of the ovaries in staminate flowers, and stamens in pistillate flowers. Vesselowskya shares with the other genera in the tribe Cunonieae (Pancheria, Weinmannia and Cunonia), a central column in the fruits, and Cunonia-type stipules, but differs from these genera in having valvate aestivation, digitate leaves, craspedodromous secondary venation with secondary veins terminating at a tooth, tuft domatia along the midrib, adaxial epidermal cells with strongly sinuous cell walls and the absence of hydathodes.

Paronychia sanchez-vegae (Caryophyllaceae), a new woody species of Paronychia from North Peru

Phytotaxa ◽  
2018 ◽  
Vol 334 (1) ◽  
pp. 41 ◽  
Author(s):  
DANIEL B. MONTESINOS-TUBÉE ◽  
ASUNCIÓN CANO ◽  
LUIS F. GARCÍA-LLATAS ◽  
YINGZI JU ◽  
ANNELEEN KOOL
Keyword(s):  
New Species ◽  
Leaf Surface ◽  
Woody Species ◽  
Leaf Size ◽  
Molecular Data ◽  
Central Andes ◽  
A New Species

As part of botanical expeditions in the Amazonas region of North Peru, we found plants from the Central Andes (North Peru). Based on morphology and molecular data, the Peruvian population was described and illustrated here as a new species for Science, named Paronychia sanchez-vegae. The new species is compared with its most likely closest relative, P. andina from which differs by the larger size, its woody ramified stems, the glabrous leaf surface, shorter leaf size, shorter flowers and larger size of the ovary.

Paris lihengiana (Melanthiaceae: Parideae), a new species from Yunnan, China

Phytotaxa ◽  
2019 ◽  
Vol 392 (1) ◽  
pp. 45 ◽  
Author(s):  
ZHUN XU ◽  
NENG WEI ◽  
YING TAN ◽  
SHUAI PENG ◽  
VERONICAH MUTELE NGUMBAU ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Yunnan Province ◽  
Leaf Surface ◽  
Morphological Characters ◽  
Molecular Data ◽  
Abaxial Leaf Surface ◽  
Molecular Phylogenetic ◽  
Plastid Markers ◽  
A New Species

Paris lihengiana (Melanthiaceae), a new species from Yunnan Province, China, is described and illustrated based on evidence from morphological characters and molecular phylogeny. It differs from other species of Paris in its pubescent stem, pedicel and abaxial leaf surface, as well as other characters. Molecular phylogenetic analysis of 33 taxa in Paris was conducted based on nuclear ribosomal ITS and six plastid markers. Paris lihengiana is supported as a new species by both morphological characters and molecular data.

Co-existing species of Drapetis Meigen in Skåne (S Sweden) with description of a new species and a key to males of NW European species (Diptera: Hybotidae)

Zootaxa ◽  
2019 ◽  
Vol 4624 (3) ◽  
pp. 431-441
Author(s):  
VERNER MICHELSEN ◽  
PATRICK GROOTAERT
Keyword(s):  
New Species ◽  
Species Group ◽  
Identification Key ◽  
Sem Images ◽  
European Species ◽  
A New Species ◽  
Nw Europe ◽  
Single Locality

Drapetis is a genus of tiny predaceous hybotid flies found frequently on the bark of trees. From a single locality in province Skåne (S Sweden) we report the co-existence of seven species of Drapetis. One is new and described as D. abrollensis sp. nov., and four species, D. assimilis (Fallén), D. completa Kovalev, D. infitialis Collin and D. stackelbergi Kovalev, are relatively recent additions to the list of Swedish Diptera. A key to males of the 14 species of Drapetis known from NW Europe is given. Special emphasis is given to modifications of the midleg cuticle observed in males of several species that belong to the D. exilis-species group. As shown by SEM images these modifications differ greatly between the species, both at light microscopic and ultrastructural levels. These modifications are introduced as a new set of characters in the identification key. Finally, brochosomes were detected on the midleg of three SEM-examined Drapetis species, documenting indirectly that small leafhoppers are regularly used as prey. 

Contributions to the Andean Senecioneae (Compositae)—II. Werneria lanatifolia, a new species from central Andes

Phytotaxa ◽  
2019 ◽  
Vol 422 (2) ◽  
pp. 201-205 ◽  
Author(s):  
JOEL CALVO ◽  
ROSA I. MENESES
Keyword(s):  
New Species ◽  
Leaf Surface ◽  
Central Andes ◽  
Distribution Map ◽  
Adaxial Leaf Surface ◽  
Dichotomous Key ◽  
A New Species

Werneria lanatifolia is described as a new species from the central Andes. It is a minute plant characterized by a lanate indumentum on the adaxial leaf surface and involucre. The new species is compared with the morphologically closest taxa and useful characters for its proper identification are provided. Detailed pictures of living plants, a distribution map, and a dichotomous key including the species allied to W. lanatifolia are also presented.

Afroboletus sequestratus (Boletales), the first species with sequestrate basidioma in the genus

Phytotaxa ◽  
2017 ◽  
Vol 305 (1) ◽  
pp. 11 ◽  
Author(s):  
LI-HONG HAN ◽  
BART BUYCK ◽  
NOUROU S. YOROU ◽  
ROY E. HALLING ◽  
ZHU L. YANG
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
The Other ◽  
Morphological Description ◽  
Sem Images ◽  
Morphological Comparison ◽  
Line Drawings ◽  
Molecular Phylogenetic ◽  
A New Species

A new species of Afroboletus, namely A. sequestratus, is described from Zambia. Evidence from molecular phylogenetic analyses using sequences rpb1, rpb2 and tef1α and morphological comparison support its placement in Afroboletus and it is distinct from the other related members of this genus in Africa. It is the first species with sequestrate basidiomata in the genus. A morphological description is augmented with line drawings and SEM images for the species.

Drymonia betancurii (Gesneriaceae), a new species from northwestern Colombia

Phytotaxa ◽  
2015 ◽  
Vol 221 (1) ◽  
pp. 77 ◽  
Author(s):  
Laura Clavijo ◽  
John Littner Clark
Keyword(s):  
New Species ◽  
Leaf Surface ◽  
Lower Surface ◽  
Colombian Andes ◽  
White Spots ◽  
The Pacific ◽  
Dark Green ◽  
A New Species

A new species of Gesneriaceae from the Pacific slopes of the Colombian Andes is described and illustrated. The new species, Drymonia betancurii, is differentiated from other congeners by the following combination of characters: upper leaf surface with papillose-hispid trichomes, dark green and often covered with white spots; lower surface pitted; and corolla lobes orange-red with white to yellow margins.

Begonia tadungensis (Begonia sect. Platycentrum), a new species from southern Vietnam

Phytotaxa ◽  
2020 ◽  
Vol 449 (1) ◽  
pp. 65-74
Author(s):  
TRUONG VAN DO ◽  
ANH NGOC DAM LUU ◽  
WEN-KE DONG
Keyword(s):  
New Species ◽  
Breeding System ◽  
Leaf Surface ◽  
Conservation Status ◽  
Similar Species ◽  
Southern Vietnam ◽  
Abaxial Leaf Surface ◽  
A New Species

We here describe and illustrate Begonia tadungensis (B. sect. Platycentrum), a new species from southern Vietnam. The new species is most similar to B. albopunctata in having broadly ovate leaves, three free styles, 4-loculed ovary, and berry-like fruits with a beaked apex, but differs mainly in having a glabrous abaxial leaf surface (not densely red pubescent), and fruits with gray puberlous hairs (not white papillose). It is also similar to B. pendens in its broadly ovate leaves and monoecious breeding system, but differs in having 6 tepals in the pistillate flowers (not 5) and 4-loculed ovaries (not 3-loculed). Information on ecology, conservation status, and a further comparison of characters with these two similar species is also provided.

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