scholarly journals Thilachium madagascariense (Capparaceae), a new species from eastern Madagascar with a key to the species of the genus

Kew Bulletin ◽  
2021 ◽  
Author(s):  
Silvio Fici

SummaryThilachium madagascariense Fici, a small tree characterised by 1-foliolate leaves with articulate petioles, leaf blades elliptic or narrowly obovate with base attenuate and apex acuminate, flowers in groups of 2 – 3 at the top of lateral twigs and a high number of stamens, is described and illustrated from forest habitats of eastern Madagascar. The new species is similar to T. laurifolium Baker, a species endemic to central and eastern Madagascar, differing in the longer leaves with acuminate apex, flowers conferted at the top of lateral twigs, shorter pedicels, higher number of stamens and shorter gynophore. Its affinities are discussed and an updated key is provided for all the species of the genus Thilachium.

2012 ◽  
Vol 69 (2) ◽  
pp. 301-311 ◽  
Author(s):  
C. M. Wilmot-Dear ◽  
I. Friis

A new species in the Old World genus Debregeasia (Urticaceae), D. australis Friis, Wilmot-Dear & C.J.Chen, based on material from forest habitats in eastern Queensland, Australia, is described, illustrated and mapped. A new synopsis of the genus and a new key to species recognised is provided as a supplement to the revision of Debregeasia by C. M. Wilmot-Dear in 1988. Debregeasia orientalis, described from China since 1988, is accepted, species from China and Bangladesh (D. elliptica and D. dentata) are reinstated, and other taxonomic changes made since the revision of 1988 are summarised.


2019 ◽  
Vol 60 (1) ◽  
pp. 31-65
Author(s):  
Jason G. H. Londt ◽  
Torsten Dikow

Southern AfricanChoeradesWalker, 1851 are reviewed. Six species are recognised (C.analogossp. n.described from South Africa: KwaZulu-Natal,C.bella(Loew, 1858),C.flavipes(Wiedemann, 1821),C.multipunctata(Oldroyd, 1974),C.nigrapex(Bigot, 1878),C.nigrescens(Ricardo, 1925)) and a key for their separation is provided. Distributional information demonstrates that species are found primarily in moderate to higher rainfall regions. The little that is known of their biology is discussed. Species are usually associated with indigenous forest habitats where larval development takes place in decomposing wood.


Phytotaxa ◽  
2016 ◽  
Vol 273 (2) ◽  
pp. 115 ◽  
Author(s):  
KELLY CRISTINA DA SILVA-GONÇALVES ◽  
JOSÉ FERNANDO A. BAUMGRATZ ◽  
ANDRÉ FELIPPE NUNES-FREITAS

A new species of Bertolonia (Melastomataceae; Bertolonieae) endemic to the Brazilian Atlantic Forest is described and illustrated. Bertolonia organensis is known from only one locality in the Serra dos Órgãos National Park, state of Rio de Janeiro. The main diagnostic characteristics that distinguish B. organensis are the leaves with bullate adaxial surface and foveolate abaxial surface, cordate base and seven acrodromous veins, petiole and hypanthium glandulose-punctate, setulose and setulose-glandulose, the external calyx lobes erect, thick, narrow-triangular, apex acuminate-glandulose, margin entire, not ciliate, and the anthers connective dorsally appendaged, trilobed or with an acute calcar. Comparisons with similar species, geographic distribution and habitat are presented for the new species, as well as a key to identify all Bertolonia taxa known from the state of Rio de Janeiro. Bertolonia organensis is classified as Critically Endangered (CR).


Phytotaxa ◽  
2020 ◽  
Vol 428 (2) ◽  
pp. 153-158
Author(s):  
LEI JIANG ◽  
LIN-FANG WU ◽  
GUAN-BIN HUANG ◽  
JIA-RONG YU ◽  
BI-SHENG HE ◽  
...  

A new species, Ilex jiangmenensis, is described from Gudoushan Provincial Nature Reserve of Jiangmen City, a coastal city in southern Guangdong, China. It was observed to grow in rock crevices or beside the evergreen broad-leaved forests in the mountains of Gudoushan and Nanfengshan at an elevation of 50–550 m. The new species differs from its morphologically most similar species I. pingheensis by its much smaller leave blade, acute or short acuminate apex of leave blade, pistillate inflorescences with fascicles 1–2(–4)-flowered, and staminate inflorescences with individual branches of the fascicles (1)–3-flowered.


Phytotaxa ◽  
2017 ◽  
Vol 307 (1) ◽  
pp. 95 ◽  
Author(s):  
PAUL E. BERRY ◽  
KENT KAINULAINEN

Croton crossolepis is newly described and illustrated. It is a shrub or small tree endemic to southwestern Madagascar near Toliara and is distinguished by a mixture of stellate and lepidote trichomes, with most of the lepidote ones having fringed margins and partially free, stiff rays that can make it adhere to surfaces like clothing when they come into contact. The inflorescences are pseudoterminal and spicate in appearance, with numerous flowers subtended by acicular bracts that are longer than the buds. It has larger leaves than most Croton species that occur in the semi-arid southwestern scrub and spiny forests nearby in the country, and it is apparently quite rare and subject to ongoing decline, warranting a conservation assessment of Vulnerable.


Phytotaxa ◽  
2015 ◽  
Vol 192 (4) ◽  
pp. 296
Author(s):  
Marie Jordaan ◽  
Abraham E. Van Wyk

Gymnosporia swazica, a new restricted-range southern African species, is described and illustrated here. Known from only a few localities in Swaziland and bordering parts of South Africa (Mpumalanga and northeastern KwaZulu-Natal), G. swazica grows as an understorey shrub or small tree in forest, often among granite boulders. Diagnostic characters for G. swazica include chartaceous leaves, usually shorter than 25 mm, 3-valved capsules usually 6–7 mm long, which are smooth, green turning yellow, and a white aril partially covering the brownish seed. Its closest relative appears to be G. buxifolia (capsules rugose, mottled white-and-brown), one of the most widespread members of the genus in southern Africa, but it can also be confused with G. maranguensis (capsules red, 2-valved) and G. harveyana (capsules pink to red, 3-valved; aril orange, completely covering the seed).


1995 ◽  
Vol 27 (1) ◽  
pp. 43-58 ◽  
Author(s):  
B. Goffinet ◽  
R. I. Hastings

AbstractExamination of specimens of Peltigera didactyla, from Africa, Asia, Europe and North America revealed that this sorediate species includes three entities that can be separated on morphological characters. A new species, P. lambinonii, is described from East Africa, and a new combination P. didactyla var. extenuata, is proposed to accommodate morphs from mesic forest habitats in Asia, Europe and North America. Despite this taxonomic reduction, P. didactyla var. didactyla remains a ubiquitous taxon. The former two taxa often produce methyl gyrophorate, which can co-occur with traces of gyrophoric acid. These tridepsides were only rarely detected in var. didactyla; their occasional presence seems to be best explained by hybridization. The taxonomic and ecological significance of these substances is discussed.


Phytotaxa ◽  
2014 ◽  
Vol 173 (2) ◽  
pp. 117 ◽  
Author(s):  
Endymion D. Cooper ◽  
Matt A. M. Renner

Molecular and morphological data support the recognition of a new Lepidozia species related to L. pendulina and also endemic to New Zealand, which we dedicate to Dr John Braggins. Lepidozia bragginsiana can be distinguished from closely related and other similar species by its bipinnate branching, the narrow underleaf lobes, typically uniseriate toward their tip on both primary and secondary shoots, the asymmetric underleaves on primary shoots that are usually narrower than the stem and also possess basal spines and spurs, the production of spurs and spines, or even accessory lobes, on the postical margin of primary and secondary shoot leaves; and by the relatively small leaf cells with evenly thickened walls.  Lepidozia bragginsiana is an inhabitant of hyper-humid forest habitats where it occupies elevated microsites on the forest floor. A lectotype is proposed for L. obtusiloba.


Phytotaxa ◽  
2013 ◽  
Vol 104 (1) ◽  
pp. 12 ◽  
Author(s):  
P.J. De LANGE

Uncinia auceps is described as a new species from Chatham Islands, New Zealand. The new species is segregated from and compared with U. uncinata, a species endemic to the other New Zealand islands. Uncinia auceps occurs mainly in forest habitats on most of the main islands of the Chatham Island archipelago. In addition, a distribution map and the conservation status of the new species are presented.


2019 ◽  
Vol 11 (12) ◽  
pp. 14619-14623
Author(s):  
Todd F. Elliott ◽  
James M. Trappe

Russula scarlatina sp. nov. is a common sequestrate fungus found in the dry sclerophyll Eucalyptus woodlands of southeastern Australia.  Basidiomata are hypogeous or sometimes emergent; they are scarlet in youth and become dark sordid red or brown with advanced age.  Historically, this species would have been placed in the genus Gymnomyces, but in light of recent revisions in the taxonomy of sequestrate Russulaceae, we place it in the genus Russula.  It is morphologically distinct from other sequestrate species of Russula because of its scarlet peridium and unusual cystidial turf in youth.  It has been collected only in dry grassy woodlands and open forest habitats of southeastern Australia.  


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