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1. A Common but Overlooked New Species in the Hyper-Diverse Genus Inga Mill. from the Northwestern Amazon

Author:
Guevara Andino, Juan Ernesto; Pitman, Nigel C. A.; Hernández, Consuelo; Valencia, Renato; Coley, Phyllis D.; Kursar, Thomas A.; Endara, María-José
Source:
Systematic botany 2019 v.44 no.3 pp. 536-547
ISSN:
0363-6445
Subject:
calyx; chemistry; corolla; epigallocatechin gallate; forests; new species; phylogeny; plant taxonomy; species diversity; stigma; trees; Amazonia
Abstract:
... Inga kursarii is a new species collected in the terra firme forests of the northwestern Amazon, one of the regions with the highest tree species diversity in the world. According to morphological and phylogenetic analyses, the new species is morphologically similar and sister to Inga gracilifolia Ducke, but it can be distinguished by having 5–6 pairs of caducous leaflets, elliptical leaflets with ...
DOI:
10.1600/036364419X15620113920680

2. A New Distylous Waltheria L. (Byttnerioideae, Malvaceae) From the State of Bahia, Brazil

Author:
Coutinho, Thales Silva; Alves, Marccus
Source:
Systematic botany 2019 v.44 no.3 pp. 681-685
ISSN:
0363-6445
Subject:
Malvaceae; calyx; leaf blade; new species; phyllotaxy; plant taxonomy; scientific illustration; shrubs; taxon descriptions; Brazil
Abstract:
... A new distylous Waltheria species from Bahia, Brazil, is described and illustrated. Waltheria saundersiae is endemic to the campos rupestres from Bahia and is a shrub with erect to flexuous branches. It can be confused morphologically with Waltheria cinerescens, W. maritima, and W. selloana, however, it is distinguished mainly by the bark ornamentation, leaf arrangement, leaf blade margin, inflore ...
DOI:
10.1600/036364419X15620113920734

3. A New Endangered Species of Fritzschia Cham. (Melastomataceae, Marcetieae) from Espinhaço Range, Minas Gerais, Brazil

Author:
Romero, Rosana; Nunes da Silva, Diego; De-Paula, Orlando Cavalari; Reis da Rocha, Maria José
Source:
Systematic botany 2019 v.44 no.3 pp. 664-669
ISSN:
0363-6445
Subject:
testa; endangered species; corolla; hypanthium; conservation status; phytogeography; stamens; Melastomataceae; new species; leaves; Brazil
Abstract:
... During a field expedition to the Serra do Cipó, Minas Gerais state, Brazil, we found a new species of Fritzschia, a genus endemic to campos rupestres from the Espinhaço Range. Fritzschia cordifolia has cordate and succulent leaves with an apical gland, petals with glandular-ciliate margin, campanulate hypanthium, and antesepalous stamens with ventral appendages with deltoid lobes. The presence of ...
DOI:
10.1600/036364419X15620113920707

4. A New Species and a New Record of Varronia (Cordiaceae) from Brazil

Author:
de Sousa Silva, Thaynara; Miranda de Melo, José Iranildo
Source:
Systematic botany 2019 v.44 no.3 pp. 692-696
ISSN:
0363-6445
Subject:
Cordiaceae; new species; phytogeography; plant taxonomy; scientific illustration; taxon descriptions; taxonomic keys; Amazonia; Brazil; Venezuela
Abstract:
... Herein a new species, Varronia xinguana, is described and illustrated. In addition, Varronia polystachya, a species previously known only from Venezuela, is reported for the first time for Brazil. Both species are restricted to the phytogeographic domain of Amazonia, northern Brazil. A distribution map and a conservation assessment are provided. An identification key is also provided for the speci ...
DOI:
10.1600/036364419X15620113920752

5. A New Species of Oxylobus (Asteraceae: Eupatorieae) and Updated Taxonomic Treatment of the Genus

Author:
Redonda-Martínez, Rosario; Martínez Salas, Esteban Manuel
Source:
Systematic botany 2019 v.44 no.3 pp. 719-735
ISSN:
0363-6445
Subject:
Asteraceae; conservation areas; cypsela; leaves; new species; plant taxonomy; trichomes; Mexico
Abstract:
... The new species Oxylobus coyulensis, currently only known from the Tehuacan-Cuicatlan Valley Biosphere Reserve, located in the states of Oaxaca and Puebla, Mexico, is described. The new taxon can be distinguished from the other species of the genus by leaf shape, leaf trichome diversity, and cypselae surface characteristics. In addition, following a detailed micromorphological study of the species ...
DOI:
10.1600/036364419X15620114943873

6. A Well-Known “Mussambê” is a New Species of Tarenaya (Cleomaceae) from South America

Author:
Soares Neto, Raimundo Luciano; Thomas, William Wayt; de Vasconcellos Barbosa, Maria Regina; Roalson, Eric H.
Source:
Systematic botany 2019 v.44 no.3 pp. 686-691
ISSN:
0363-6445
Subject:
Cleome hassleriana; new species; phylogeny; plant taxonomy; South America
Abstract:
... Tarenaya longicarpa, commonly known as “mussambê,” is a new species from South America. Iltis previously recognized it as a subspecies of Cleome spinosa Jacq. but never published the name. Molecular phylogenetic studies have confirmed this taxon as a distinct lineage from T. spinosa. In addition, the results of a revision of Tarenaya, now underway, corroborate the separation of T. longicarpa from ...
DOI:
10.1600/036364419X15620113920743

7. Erythroxylum niziae (Erythroxylaceae): A New Species from the West-Central Cerrado of Brazil

Author:
Bezerra Loiola, Maria Iracema; Cordeiro, Luciana Silva
Source:
Systematic botany 2019 v.44 no.3 pp. 659-663
ISSN:
0363-6445
Subject:
Erythroxylum; cerrado; flowers; leaves; new species; phytogeography; plant taxonomy; Brazil
Abstract:
... A new species of Erythroxylum (Erythroxylum niziae) from west-central Brazil is presented here. Descriptions, illustrations, a map of geographic distribution, and morphological comparisons with morphologically similar species are provided. The novelty differs from its congeners by its subshrub habit 12 to 16 cm in height, firmly chartaceous to coriaceous leaves (8.8–12.7 × 4.3–7.9 cm), and single ...
DOI:
10.1600/036364419X15620113920699

8. Three New Species of Justicia L. (Acanthaceae) from Brazil

Author:
da Silva, Fabio Araújo; Bragança Gil, André dos Santos; de Souza Reis, Agirlayne; Fernandes-Júnior, Aluisio José; da Luz, Cynthia Fernandes Pinto; Kameyama, Cíntia
Source:
Systematic botany 2019 v.44 no.3 pp. 697-707
ISSN:
0363-6445
Subject:
Justicia; conservation status; flora; habitats; new species; plant taxonomy; Brazil
Abstract:
... Three new species of Justicia (Acanthaceae), Justicia birae, Justicia distichophylla, and Justicia mcdadeana, discovered during the preparation of a taxonomic treatment of Acanthaceae for the “Flora of the cangas of the Serra dos Carajás, Pará, Brazil” are described. Their distribution, habitat data, conservation status, taxonomic comments, and illustrations are provided. ...
DOI:
10.1600/036364419X15620114943855

9. Two New Endemic Species of Rhynchospora (Cyperaceae) Section Tenues from Bahia, Brazil

Author:
Silva Filho, Pedro J. S.; Thomas, William Wayt; Boldrini, Ilsi I.
Source:
Systematic botany 2019 v.44 no.3 pp. 652-658
ISSN:
0363-6445
Subject:
Rhynchospora; altitude; indigenous species; meadows; new species; plant taxonomy; scientific illustration; taxon descriptions; Brazil
Abstract:
... Two new species of Rhynchospora section Tenues are described, illustrated, and distinguished from similar species. Rhynchospora chapadensis and Rhynchospora harleyi are both endemic to the campos rupestres (high-elevation rocky meadows) of the Chapada Diamantina, Bahia, Brazil. ...
DOI:
10.1600/036364419X15620113920671

10. Two New Species of Serjania (Sapindaceae) from Michoacán, Mexico, with Notes on S. biternata

Author:
Ferrucci, María Silvia; Steinmann, Victor Werner
Source:
Systematic botany 2019 v.44 no.3 pp. 670-680
ISSN:
0363-6445
Subject:
Sapindaceae; flowers; fruit morphology; fruits; leaves; new species; plant taxonomy; pollen; scientific illustration; taxon descriptions; Mexico
Abstract:
... Serjania rosalindae and Serjania crucensis (Sapindaceae-Paullinieae), new species from the municipality of La Huacana, Michoacán, Mexico, are described, illustrated, and compared with closely related species. In addition, micromorphological features of the leaves, flowers, and pollen grains are investigated. A treatment of the endemic S. biternata from Guerrero is also included because it is a lit ...
DOI:
10.1600/036364419X15620113920725

11. A Curious New Species of Xenostegia (Convolvulaceae) from Central Africa, with Remarks on the Phylogeny of the Genus

Author:
Sosef, Marc S. M.; Gereau, Roy E.; Janssens, Steven B.; Kompanyi, Modestine; Simões, Ana R.
Source:
Systematic botany 2019 v.44 no.2 pp. 405-414
ISSN:
0363-6445
Subject:
national parks; corolla; tropics; Merremia; pollen; trees; taxonomic keys; new species; plant taxonomy; habitats; leaves; polyphyly; Democratic Republic of the Congo
Abstract:
... The polymorphic genus Merremia has been shown to be polyphyletic. In 1980, Xenostegia was separated from the first, based on its longitudinally dehiscing anthers, stigmas with long tapering papillae, and non-spiny, pantoporate pollen, and accommodated two species in the Old World tropics. A recent molecular study and subsequent review of the tribe Merremieae resulted in the distinction of seven ge ...
DOI:
10.1600/036364419X15562052252027

12. A New Species of Acalypha L. (Euphorbiaceae) from the Brazilian Atlantic Rain Forest

Author:
Sousa, Ana Angélica Cordeiro de; Cordeiro, Inês; Caruzo, Maria Beatriz Rossi
Source:
Systematic botany 2019 v.44 no.2 pp. 346-348
ISSN:
0363-6445
Subject:
Acalypha; bracts; leaves; new species; plant taxonomy; rain forests; Brazil
Abstract:
... As part of taxonomic studies of the genus Acalypha in eastern Brazil, we describe here a new species, Acalypha almadinensis, from the Atlantic Rain Forest, in the states of Bahia and Minas Gerais. This species is morphologically similar to Acalypha brasiliensis and A. accedens, but differs from both mainly by its fleshy pistillate bracts and vinaceous lower leaf surface. ...
DOI:
10.1600/036364419X15562052252171

13. A New Species of Eryngium (Apiaceae, Saniculoideae) from the USA

Author:
Calviño, Carolina I.; Levin, Geoffrey A.
Source:
Systematic botany 2019 v.44 no.2 pp. 446-450
ISSN:
0363-6445
Subject:
Eryngium; bracts; calyx; color; habitat preferences; habitats; new species; phenology; phytogeography; plant taxonomy; Texas
Abstract:
... We report Eryngium arenosum (Apiaceae, Saniculoideae), a new species from Texas, USA. This new species is differentiated from E. nasturtiifolium, the most similar species, by characters of the capitule (color, shape, size, number of flowers), lengths and shapes of the involucral and floral bracts, presence or absence of a coma, length of the calycine scales relative to the sepals, and habitat pref ...
DOI:
10.1600/036364419X15562052252261

14. A New Species of Moquiniastrum (Asteraceae: Gochnatieae) for Brazil and Comments about the Genus

Author:
Roque, Nádia; Ribeiro, Rogério N.; Teles, Aristônio M.
Source:
Systematic botany 2019 v.44 no.2 pp. 433-438
ISSN:
0363-6445
Subject:
Asteraceae; blades; bracts; branches; conservation status; florets; leaves; monoecy; national parks; new species; plant taxonomy; reproductive system; Brazil
Abstract:
... Moquiniastrum glabrum is here described as a new species of Tribe Gochnatieae from the Chapada dos Veadeiros National Park, Goiás, Brazil. The new species is recognized by having a monoecious reproductive system, glabrous branches and leaf blades, 9–11-seriate involucral bracts, and 30–35 florets per capitulum, all of which are bisexual. Illustrations, comments, a preliminary conservation status, ...
DOI:
10.1600/036364419X15562052252108

15. Artemisia baxoiensis (Asteraceae: Anthemideae), a Distinctive New Species from Xizang, China

Author:
Jiao, Bohan; Zhang, Guojin; Zheng, Jiye; Nie, Bao; Niu, Guohao; Shen, Jiahao; Wei, Meng; Gao, Tiangang
Source:
Systematic botany 2019 v.44 no.2 pp. 424-432
ISSN:
0363-6445
Subject:
Artemisia; leaf blade; new species; phylogeny; plant taxonomy; scientific illustration; taxon descriptions; trichomes; China
Abstract:
... A new species of Artemisia (Asteraceae: Antemideae) from Xizang, China, A. baxoiensis, is described, illustrated, and discussed based on morphological, micromorphological, and molecular phylogenetic evidence. It grows in the Nu Jiang dry-hot valley and is narrowly distributed. This plant is similar to Neopallasia pectinata, but different in capitula and indumentum. Artemisia baxoiensis has a disti ...
DOI:
10.1600/036364419X15562052252063

16. Aspidosperma huberianum (Apocynaceae), a New Species from the Brazilian Amazon

Author:
Pereira, Andreza Stephanie de Souza; Castello, Ana Carolina Devides; Silva, Edilson Freitas da; Guimarães, José Tasso Felix; Simões, André Olmos; Koch, Ingrid
Source:
Systematic botany 2019 v.44 no.2 pp. 363-370
ISSN:
0363-6445
Subject:
Aspidosperma; calyx; conservation status; corolla; fruits; habitats; leaves; new species; phenology; photographs; plant ovary; plant taxonomy; pollen; taxon descriptions; Amazonia; Brazil
Abstract:
... We describe Aspidosperma huberianum, a new species from the Brazilian Amazon. The new taxon is morphologically similar to A. darienense, but can be distinguished readily by characters of the leaf (including venation), flower (including calyx lobe number and indument of the corolla and ovary), pollen, fruit, and seed. We provide a taxonomic description, pollen characterization, illustration, photog ...
DOI:
10.1600/036364419X15562052252243

17. Dalechampia macrobractea, a New Species of Euphorbiaceae from Southern East Africa

Author:
Pereira-Silva, Rafaela Alves; Athiê-Souza, Sarah Maria; Phillipson, Peter B.; Melo, André Laurênio de; Sales, Margareth F.; Armbruster, W. Scott
Source:
Systematic botany 2019 v.44 no.2 pp. 335-338
ISSN:
0363-6445
Subject:
Euphorbiaceae; bracts; habitats; leaves; new species; phytogeography; plant taxonomy; trichomes; Tanzania; Zambia
Abstract:
... Dalechampia macrobractea is a new species of Euphorbiaceae described from Tanzania and Zambia, Africa. It is similar to D. capensis due to having the deeply lobed leaves and three-lobed involucral bracts, but differs from this species in the size and shape of the leaves, number of pistillate bracteoles, and the absence of glandular trichomes on the margin of the pistillate bracteoles. We place it ...
DOI:
10.1600/036364419X15562052252054

18. Description of a New Species of Spiny Solanum (Solanaceae) from Rocky Outcrops of Northeastern Brazil, with Modeling of Its Environmental Suitability

Author:
Sampaio, Valéria da Silva; Gouvêa, Yuri Fernandes; Souza, Elnatan Bezerra de; José-Silva, Leandro; Eisenlohr, Pedro V.; Loiola, Maria Iracema Bezerra
Source:
Systematic botany 2019 v.44 no.2 pp. 415-423
ISSN:
0363-6445
Subject:
Solanum; conservation status; ecosystems; habitats; indigenous species; models; new species; phytogeography; plant taxonomy; species richness; surveys; vegetation; Brazil
Abstract:
... Rocky outcrops surrounded by vegetation in northeastern Brazil form special ecosystems of high species richness and endemism and represent priority areas for biodiversity studies and conservation measures. Floristic surveys of rocky outcrops in the State of Ceará resulted in the identification of a new species of Solanum from the Thomasiifolium clade. Its morphological description, geographic dist ...
DOI:
10.1600/036364419X15562052252216

19. Mesosetum filgueirasii (Poaceae, Arthropogoninae): A New Species from the Cerrado Biome, Brazil, and Its Leaf Blade Anatomy

Author:
Oliveira, Regina Célia de; Gomes, Sueli Maria; Felipe-Da-Silva, José Geraldo; Valls, José Francisco Montenegro
Source:
Systematic botany 2019 v.44 no.2 pp. 319-323
ISSN:
0363-6445
Subject:
Neotropics; Poaceae; cerrado; ecosystems; eroded soils; indigenous species; leaf blade; new species; plant taxonomy; Brazil
Abstract:
... Mesosetum (Poaceae, Arthropogoninae) is a Neotropical genus with its greatest diversity in Brazil, which has 22 of the 25 recognized species, 14 of which are endemic to this country. One more endemic species, Mesosetum filgueirasii, here described, is allied to M. penicillatum because it has the lower lemma covered by an indumentum in tufts. This work establishes the distinction between these spec ...
DOI:
10.1600/036364419X15562052252036

20. Microlicia longirostrata, a New Species of Melastomataceae from Goiás in Central Brazil

Author:
Romero, Rosana; Fontelas, Jean Corrêa; Versiane, Ana Flávia Alves; De-Paula, Orlando Cavalari
Source:
Systematic botany 2019 v.44 no.2 pp. 349-354
ISSN:
0363-6445
Subject:
beak; taxon descriptions; anthers; trichomes; Melastomataceae; scientific illustration; collenchyma; new species; plant taxonomy; leaves; Brazil
Abstract:
... Microlicia longirostrata (Melastomataceae), a new species from Goiás, is described and illustrated, and a discussion on leaf anatomy is also provided. The new species resembles M. consimilis and M. psammophila, but differs from them in having an indumentum with both short-stalked, spherical, glandular trichomes and long-stalked, glandular emergences, polysporangiate anthers and antesepalous stamen ...
DOI:
10.1600/036364419X15562052252180