Two new species from the Ile des Pins (New Caledonia), and a not so new species from Grande Terre (New Caledonia)

Phytotaxa ◽  
2018 ◽  
Vol 349 (3) ◽  
pp. 201 ◽  
Author(s):  
ULRICH MEVE ◽  
GILDAS GÂTEBLÉ ◽  
SIGRID LIEDE-SCHUMANN

Two New Caledonian endemics of Apocynaceae-Asclepiadoideae, predominantly natives of the Ile des Pins, an island south of New Caledonia known for its high microendemism, are here described as new to science. One new species, Heterostemma bicanthaceum (Ceropegieae), is related to H. acuminatum Decne. but differs remarkably in a number of floral characters such as a raised central corolla tube, and a dull purple-brown and wrinkled corona with expanded lateral appendages forming coronal rail-like structures. The other species described and illustrated, Marsdenia kuniensis (Marsdenieae), is sister to Marsdenia dognyensis from the Grande Terre. Its fleshy whitish to rose corolla with the tube closely encircling the corona as well as protruding and deltoid corona lobes broader than long distinguish the new species. These two species are restricted to calcareous forests and a preliminary IUCN red list assessment is proposed. Additionally, the name Marsdenia neomicrostoma is proposed for a species whose members have hitherto mostly been listed under the name Marsdenia microstoma, a name that has to be considered as nomen dubium after its type has been lost. The species is a typical element of ultramafic soil vegetation, and therefore widespread on Grande Terre but missing on the Ile des Pins.

Phytotaxa ◽  
2018 ◽  
Vol 345 (2) ◽  
pp. 165
Author(s):  
KOKKARANIYIL SMITHA ◽  
PURAYIDATHKANDY SUNOJKUMAR

A new species, Plectranthus sahyadricus is described from Munnar, southern Western Ghats, India. The species shows similarity with Plectranthus beddomei, in its stem and leaf characters but differs mainly by presence of a ring of hairs at young nodes, floral characters like cyme length, number of flowers per cyme, structure of the fruiting calyx tube, anterior corolla lip not fully opened and form an inverted dome over mouth, presence of hairs inside corolla tube and size of the disc. Detailed description, IUCN red list category and other relevant notes are provided.


2012 ◽  
Vol 25 (1) ◽  
pp. 31 ◽  
Author(s):  
Ulf Swenson ◽  
Jérôme Munzinger

Pichonia Pierre (Sapotaceae, Chrysophylloideae) is a small genus of 10 species in Australasia, of which seven are endemic to New Caledonia. We revise the genus for New Caledonia and describe one new species (P. grandiflora), resurrect another (P. dubia) and make two new combinations because of nomenclatural priority (P. balansae, P. deplanchei). P. balansae has been known for decades as P. calomeris, a name that in fact has never been validly published. The members are mainly found in Grande Terre, the main island of New Caledonia, but two species extend to Belep Islands in the north and to Isle of Pines in the south of the archipelago. Most grow in maquis vegetation at low altitudes, on ultramafic soils, preferably serpentinite. The exceptions are P. balansana, confined to limestone areas, and P. dubia that is a large canopy tree of the humid forest on ultramafic soil. Pichonia is distinguished by a character combination of an areolate higher venation, staminodes, a single-seeded fruit, plano-convex cotyledons and absence of endosperm. Because of being restricted to ultramafic soils, they are subsequently sensitive to present and future mining activities in New Caledonia. Hence, preliminary IUCN Red List assessments for all members are provided. P. balansana, P. daenikeri and P. lecomtei are all naturally uncommon, do not occur in any protected area and are proposed the IUCN status of Vulnerable. The herein described species P. grandiflora is rare in nature, known only from the Boulinda–Paéoua–Kopéto Mountains, and is in urgent need of protection. It is therefore assigned a preliminary status of Endangered.


Phytotaxa ◽  
2020 ◽  
Vol 461 (3) ◽  
pp. 185-194
Author(s):  
MARCO CEDEÑO-FONSECA ◽  
THOMAS B. CROAT ◽  
ALEJANDRO ZULUAGA ◽  
MICHAEL MITTERMEIER ◽  
MARIO A. BLANCO

Two species of Monstera, apparently endemic to Costa Rica, are newly described and illustrated. Monstera juliusii occurs in the southern Costa Rican portion of the Cordillera de Talamanca at 1600–2250 m, and has been confused with M. standleyana in herbaria. Monstera monteverdensis occurs in the Guanacaste and Tilarán cordilleras, and the northwestern part of the Cordillera Central, at 500–2300 m, and has been confused with M. epipremnoides, M. lentii and M. lechleriana in herbaria. Phenology and suggested conservation categories according to the IUCN Red List criteria are indicated for both new taxa.


2020 ◽  
Vol 28 (1) ◽  
pp. 64-73
Author(s):  
Nadiah Manjato ◽  
Noromalala Ravololomanana ◽  
Richard Razakamalala

Ardisia sharoniae Manjato, Ravololoman.& Razakamal. and A. vohimenensis Manjato, Ravololoman. & Razakamal. (Primulaceae) are described as new species from southeastern Madagascar, the former from the Ankarabolava and Agnakatrika forests (Atsimo-Atsinanana Region) and the latter from the Vohimena range (Anosy Region). They differ from the four currently recognized Malagasy species of Ardisia Sw. by their leaves with serrate margins and their striking angulate twigs. The two new species differ from one another in several characters of their leaves, inflorescences, and fruits. An illustration and a distribution map are provided for each species. Preliminary assessments of the risk of extinction following the IUCN Red List categories and criteria indicate that both are Endangered. An identification key to the seven species of Ardisia occurring in Madagascar is presented.


Phytotaxa ◽  
2020 ◽  
Vol 432 (1) ◽  
pp. 38-46
Author(s):  
ELIANE DE LIMA JACQUES

Two new species of Begonia (Begoniaceae) from Brazil are described and illustrated. Begonia cunhambebii and Begonia lorenzii are narrow endemic species from Atlantic Coastal Forest, an area full of endemism and with huge species richness. Preliminary IUCN Red List assessments are provided for the species.


Phytotaxa ◽  
2020 ◽  
Vol 458 (3) ◽  
pp. 223-227
Author(s):  
MARCELO DIAS MIRANDA ◽  
ELIANE DE LIMA JACQUES

Begonia erythrobracteata (Begoniaceae) is a new, narrow endemic from the Atlantic Coastal Forest of Brazil. This species is closely related to Begonia olsoniae and B. fimbritepala and shares their rupicolous habit and transversely ovate leaf blades with a cordate base. It differs to B. fimbritepala in its petioles, which are densely squamulose along their entire length (vs. with simple trichomes) and B. olsoniae by its glabrous (vs. pilose) adaxial leaf surface. B. erythrobracteata is described and illustrated with detailed field photographs, and a provisional IUCN Red List Assessment is provided.


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.


Zootaxa ◽  
2007 ◽  
Vol 1557 (1) ◽  
pp. 1-32 ◽  
Author(s):  
LUIS A. COLOMA ◽  
STEFAN LÖTTERS ◽  
WILLIAM E. DUELLMAN ◽  
ALFONSO MIRANDA-LEIVA

Atelopus pachydermus is redescribed on the basis of the retraced holotype and recently collected specimens. Comparisons with the holotype confirmed that this species occurs neither in Pacific Colombia, nor in the northeastern Cordillera of Ecuador, as proposed by previous authors. It occurs in the northwestern Andes of Peru and adjacent Ecuador. Populations from the Cordillera Oriental in northern Ecuador (some of them previously allocated to A. pachydermus) are described as a new species, which is distinguished from other Atelopus by size, coloration, and by having white digital pads that contrast with adjacent black phalanges. In addition, a population of Atelopus from the Andes of southwestern Ecuador, previously included in the Atelopus bomolochos complex, and having an aqua blue iris is described as a new species. We include osteological data of both new species. Predictions of numbers of species of Atelopus to be discovered and described, as well as of numbers for Ecuadorian amphibian diversity, indicates that these faunas are yet largely undescribed. Because recent records of A. pachydermus and the two new species are lacking despite search efforts, we assume that they are possibly extinct, similar to many other Andean Atelopus. Thus, we categorize these species either aspossibly extinct or, applying IUCN Red List criteria, as Critically Endangered. Current evidence suggests that amphibian extinctions in the Ecuadorian and Peruvian Andes have been more drastic than previously recognized.


Phytotaxa ◽  
2018 ◽  
Vol 381 (1) ◽  
pp. 116 ◽  
Author(s):  
P.W. MOONLIGHT ◽  
C. REYNEL

Two new species of Begonia from montane forests in Andean Peru are described and illustrated as B. lamolina and B. amoeboides. These two species are placed within B. section Cyathocnemis and are morphologically most similar to B. lophoptera, which is lectotypified, and a new description is provided. Preliminary IUCN Red List assessments are provided for all three species.


Zootaxa ◽  
2009 ◽  
Vol 2010 (1) ◽  
pp. 46-56 ◽  
Author(s):  
PETER HLAVÁČ

The tribe Tyrini of New Caledonia is revised. The genus Anagonus Fauvel is redescribed based on the study of the type species, A. fracticornis Fauvel. Two new species of Anagonus are also described, A. spinipalpis sp. nov. and A. breviscapus sp. nov. Two new genera: Caledonogonus gen. nov., with two new species, C. loebli sp. nov. and C. pilosus sp. nov., and Paranagonus gen. nov. with one new species, P. excavatus sp. nov., are described. Keys to genera and species are provided.


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