Petrocodon anoectochilus, a Remarkable New Species of Gesneriaceae from Guangxi and Guizhou, Southwest China

2021 ◽  
Vol 29 ◽  
pp. 279-286
Author(s):  
Bo Pan ◽  
Tao Ding ◽  
Hua-Fei Cen ◽  
Zhang-Jie Huang ◽  
Stephen Maciejewski ◽  
...  

Petrocodon anoectochilus F. Wen & B. Pan, a new species of Gesneriaceae from Guangxi and Guizhou in southwestern China, is described and illustrated. Although the leaf morphology of this new species looks similar to that of P. coriaceifolius (Y. G. Wei) Y. G. Wei & Mich. Möller and P. pseudocoriaceifolius Yan Liu & W. B. Xu, this remarkable new species can be easily distinguished from all other species of Petrocodon s.l. (the two above-mentioned species included) by the shape and color of its memorable corolla. Because of its restricted distribution and threatened environment, the current conservation status of this species should be assessed temporarily as “Endangered.”

Phytotaxa ◽  
2021 ◽  
Vol 520 (2) ◽  
pp. 195-202
Author(s):  
GLEISON SOARES ◽  
BENOÎT LOEUILLE

Lepidaploa restingae, a new species from the restinga vegetation in Northeastern Brazil, is described and illustrated. This new species differs from morphologically related species by the branch indument, leaf morphology, number of phyllary series and corolla lobe indument. Taxonomic comments, a distribution map and a preliminary conservation status for the new species are provided.


Phytotaxa ◽  
2021 ◽  
Vol 484 (2) ◽  
pp. 217-226
Author(s):  
MAN MU ◽  
HONG-YAN HUANG ◽  
TING HUANG ◽  
SHU-DA YANG ◽  
LI-PING TANG

Gerhardtia yunnanensis is described as a new species from southwestern China. The species is characterized by its medium to large basidiomata with a yellow-brown to reddish brown pileus with a translucent-striate pale margin, weakly curved stipe, basidia with both cyanophilic and siderophilic reactions, basidiospore walls having a cyanophilic reaction, basidiospores with minute granular or verruculose ornamentation under SEM, narrowly clavate to irregular or curved clavate cheilocystidia and pleurocystidia, and absence of clamp connections. A comparison of all taxa of the genus was performed based on morphological and ITS and LSU molecular data. Furthermore, we provide a key to the known species of Gerhardtia worldwide.


Phytotaxa ◽  
2016 ◽  
Vol 283 (1) ◽  
pp. 43 ◽  
Author(s):  
BING LIU ◽  
YUN-QING HAO ◽  
YONG YANG ◽  
TIAN-TIAN SUN ◽  
YANG-JUN LAI ◽  
...  

Based on field investigations, morphological and molecular systematic studies, a new species, Caltha dysosmoides (Ranunculaceae) from southwestern China is described. It differs from all other known congeneric species by the densely dentate leaf margin, the pendulous pedicels, the scarlet flowers, the compressed filaments, and the triangular connective. To better understand taxonomy of this new species, phylogenetic analyses were conducted using a combined dataset from nrITS, plastid trnL-trnF region, and atpB-rbcL spacer. The results indicate that Caltha is monophyletic and C. dysosmoides is sister to C. sinogracilis. The conservation status of the new species is categorized as CR based on IUCN criteria.


2021 ◽  
Vol 46 (4) ◽  
pp. 962-972
Author(s):  
Matheus Martins Teixeira Cota ◽  
Juliana Gastaldello Rando ◽  
Cristiane Snak ◽  
Luciano Paganucci de Queiroz

Abstract— Plants from Brazilian campos rupestres usually present morphological strategies that allow them to survive in extreme environments. However, in Chamaecrista (Leguminosae, Caesalpinioideae), one of the most diverse genera in the campos rupestres, needle-like leaflets are rare. Reviewing the species that present such leaf morphology, we describe Chamaecrista acicularis, a new species from the Canastra Range, in the southwestern region of the state of Minas Gerais, Brazil. Phylogenetic analyses revealed that C. acicularis is not closely related to other quite similar needle-like leafleted species and that this trait evolved convergently. We also present comments on the phylogenetic relationships of needle-like leafleted species as well as the evolution of the leaflet amplitude, and a detailed description of C. acicularis alongside illustrations, photos, geographical distribution, a key to the needle-like leafleted species and taxonomic notes on similar species. Additionally, we expand the description of Chamaecrista strictifolia and present an informal conservation status for all needle-like leafleted species.


Phytotaxa ◽  
2020 ◽  
Vol 442 (3) ◽  
pp. 205-214
Author(s):  
MARCELO MONGE ◽  
MARIANA MACHADO SAAVEDRA

Trixis salina is a new endemic species from restinga vegetation of the Center of Plant Diversity of Cabo Frio region in Rio de Janeiro state, southeastern Brazil. It grows in rocky ravines, rocky shores, and in shrubby restinga. The new species is morphologically similar to Trixis antimenorhoea; however, they differ in habit, branches, trichomes, leaf morphology, involucral bracts, and number of flowers per head. The preliminary conservation status assessment shows that Trixis salina must be included in Endangered (EN) category.


Phytotaxa ◽  
2020 ◽  
Vol 471 (2) ◽  
pp. 139-144
Author(s):  
JIAN-RONG YOU ◽  
JUAN RAN ◽  
CHENG LIU ◽  
YU-MIN SHUI ◽  
JIA-XIANG LI ◽  
...  

Mitreola crystallina was proposed in 2006, but not valid. Here, we validate the name by giving a complete description, diagnosis, and illustration as a new species of Loganiaceae. Morphologically, it is most similar to M. pedicellata, but can be distinguished by its stems erect (vs. creeping), corolla lobes blue (vs. white), and stamens inserted at or near base of the corolla tube (vs. middle to nearly mouth of corolla tube). It is endemic to the shady cliffs of limestone forests of Malipo County, southwest China. The conservation status was assessed as data deficient (DD) according to the IUCN Red List categories and criteria. And a key to species of Mitreola in China is provided.


Phytotaxa ◽  
2021 ◽  
Vol 522 (4) ◽  
pp. 294-300
Author(s):  
LEI WU ◽  
CHENG LIU ◽  
XIAO-FEI SONG ◽  
YOU-SHENG CHEN

Spiradiclis yuanyangensis is described and illustrated from Yunnan Province in southwestern China. It is morphologically most similar to S. petrophila H. S. Lo, but differs from the latter mainly by its stem pubescent, corolla tube 4–5 mm (vs. ca. 2 mm) long, and short-styled corolla inside without a villous ring. A detailed description, line drawings and colour photographs are provided, together with notes on conservation status.


PhytoKeys ◽  
2021 ◽  
Vol 184 ◽  
pp. 103-110
Author(s):  
Zhao-Jie Wen ◽  
Yun-Fen Huang ◽  
Yan-Hua Hu ◽  
Khang Sinh Nguyen ◽  
Lei Wu

A new species of Rubiaceae, Spiradiclis detianensis is described from a limestone karst area of southwestern China. This new species is morphologically similar to S. cordata and S. spathulata. All of them have rosetted habit and long peduncles, but it differs from the former by the cuneate leaf bases (vs. basally cordate) and much longer corolla tubes (1.8–2.2 cm long vs. ca. 5 mm long), and from the latter mainly by its tubular-funnel shaped corolla (vs. slenderly salver shaped), 4.5–6.8 (vs. 1.5–2) mm in diam, inside throat and corolla densely puberulent (vs. glabrous except a ring of long hairs at the middle). It also resembles to S. tubiflora, but differs clearly by its subrosulate habit (vs. procumbent to creeping), longer leaf blades (7.0–10.5 cm vs. 0.5–2.5 cm) and longer corolla tubes (18–22 mm vs. 14–16 mm). At same time, color photos, illustrations, detailed descriptions and conservation status of the new species are provided.


Phytotaxa ◽  
2020 ◽  
Vol 459 (1) ◽  
pp. 61-68
Author(s):  
ZHEN-WEN LIU ◽  
SHENG-FENG CHAI ◽  
FANG-YUAN WU ◽  
PIN-MING YE ◽  
CHANG-JIE JIANG ◽  
...  

Camellia rostrata S.X.Yang & S.F.Chai is described and illustrated as a new species from Guangxi, China. It is morphologically closest to C. debaoensis R.C.Hu & Y.Q.Liufu, but can be easily distinguished by its abaxially glabrous leaf surface, 1.0−1.5(−2.0) cm long pedicel, powdery puberulent inner surface of bracteoles, sepals, and petals, sparsely pubescent inner filaments base, and triangle globose or ellipsoid capsule with pointed beak. The conservation status of this new species was assessed as Critically Endangered (CR).


2020 ◽  
Vol 45 (3) ◽  
pp. 537-543
Author(s):  
Karinne Sampaio Valdemarin ◽  
Jair Eustáquio Quintino Faria ◽  
Fiorella Fernanda Mazine ◽  
Vinicius Castro Souza

Abstract—A new species of Eugenia from the Atlantic forest of Brazil is described and illustrated. Eugenia flavicarpa is restricted to the Floresta de Tabuleiro (lowland forests) of Espírito Santo state and is nested in Eugenia subg. Pseudeugenia. Considering all other species of the subgenus that occur in forest vegetation types of the Atlantic forest phytogeographic domain, Eugenia flavicarpa can be distinguished mainly by the combination of smooth leaves with indumentum on both surfaces, with two marginal veins, usually ramiflorous inflorescences, pedicels 4.5‐9.7 mm long, flower buds 3.5‐4 mm in diameter, and by the calyx lobes that are 2‐3 mm long with rounded to obtuse apices. Morphological analyses were performed to explore the significance of quantitative diagnostic features between the new species and the closely related species, Eugenia farneyi. Notes on the habitat, distribution, phenology, and conservation status of Eugenia flavicarpa are provided, as well as a key for all species of Eugenia subg. Pseudeugenia from forest vegetation of the Atlantic forest phytogeographic domain.


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