Marsdenia paraibana, Marsdenia trisegmentata and Marsdenia paganuccii

Three new species of Marsdenia (Apocynaceae) from Brazil
Santo, Fabio da Silva do Espírito; Santos, Amanda Pricilla Batista; Ribeiro, Patrícia Luz; Rapini, Alessandro
Acta Botanica Brasilica - 32(2): 247-253. April-June 2018

Chromosome numbers in Hieracium

Chromosome numbers in Hieracium (Asteraceae) from Central and Southeastern Europe IV
Krystyna Musiał, Agnieszka Janas, Zbigniew Szeląg   
Acta Biologica Cracoviensia s. Botanica | 2018 | vol. 60 | No 2 | 75–79 | DOI: 10.24425/118052

Oreocharis tribracteata and Oreocharis rufescens

TWO NEW SPECIES OF OREOCHARIS (GESNERIACEAE) FROM NORTHERN VIETNAM
M. Möller, H. J. Atkins, G. L. C. Bramley, D. J. Middleton, R. Baines, V. D. Nguyen, H. Q. Bui, S. Barber

Edinburgh Journal of Botany Volume 75, Issue 3, November 2018 , pp. 309-319

Begonia curvifolia and Begonia ocellata

TWO NEW SPECIES OF BEGONIA FROM SUMATRA
W. H. Ardi and M. Hughes 
Edinburgh Journal of Botany Volume 75, Issue 3, November 2018 , pp. 297-304

Deamia montalvoae sp. nov. (Cactaceae)

A new species of Deamia (Cactaceae) from the Mesoamerican region
GABRIEL CERÉN, MIGUEL ÁNGEL CRUZ, JENNY MENJÍVAR & SALVADOR ARIAS

Phytotaxa 369 (4): 251–259

Marsdenia avacanoeira, Marsdenia minutiflora, Marsdenia rupestris, Marsdenia serpentina

Fabio da Silva do Espírito Santo, Danilo José Lima de Sousa, Davi Borges das Chagas, Isa Lucia de Morais, Patrícia Luz Ribeiro, Alessandro Rapini

Four New Species of Marsdenia (Apocynaceae) from the Cerrado Domain

Systematic Botany 43(2):571-578. 2018

Four new species of Marsdenia (M. avacanoeira, M. minutiflora, M. rupestris, and M. serpentina) endemic to the Cerrado domain (Brazil) are described and illustrated here.

Hildaea parvispiculata - new species

Christian da Silva, Cristiane Snak, Pedro Lage Viana, Gerrit Davidse, Reyjane Patrícia de Oliveira
A New Species of Hildaea (Poaceae, Paspaleae) from Northern Brazil with the Smallest Spikelets in the Genus

Systematic Botany 43(3):747-753. 2018

Cyperus longiculmis and Cyperus valiae

Luciana Pereira-Silva, Sonia Marisa Hefler, Rafael Trevisan
Cyperus longiculmis and C. valiae (Cyperaceae), Two New Species from Brazil
Systematic Botany 43(3):741-746. 2018

New species Opuntia preciadoae Scheinvar, Olalde, Gallegos & Morales - Sandoval

Leia Scheinvar, Gabriel Olalde-Parra, Clemente Gallegos-Vazquez & Jesus Morales-Sandoval

A new species of Opuntia (Cactaceae) from Coniferous and Quercus Forest of northern Mexico

Bradleya (36):25-32. 2018

Thelocactus tepelmemensis - new species

Tristan Davis and Héctor M. Hernández, Gregg D. Starr, Carlos Gómez - Hinostrosa

A distinctive new species of Thelocactus (Cactaceae) from Oaxaca, Mexico

Phytotaxa 361(1):115 · July 2018