[Botany • 2021] Passiflora jorgeana (Passifloraceae) • A New Species of Passiflora Section Astrophea from Bahia, Brazil

 Passiflora jorgeana Mezzonato, 

in  Mezzonato-Pires, Calazans et Valadares, 2021.

DOI: 10.3417/2020630

 Researchgate.net/publication/349083821

Abstract

This work describes a new species of Passiflora L. from the extreme west of the state of Bahia, Brazil. The new species, P. jorgeana Mezzonato, is placed in Passiflora subg. Astrophea (DC.) Mast. and is illustrated and compared to four morphologically similar species. Morphological features, geographic distribution, and conservation status are discussed.

Keywords: Cerrado, Passiflora, passion flowers, section Pseudoastrophea

 Passiflora jorgeana Mezzonato.
-A. Habit. -B. Leaf blade. -C. Gland in abaxial surface, junction of the leaf blade with petiole. -D. Flower. -E. Fruit. -F. Longitudinal section of flower.

Scale bars: A, C, D = 5 mm; B = 2 mm; E, F = 10 mm.

  Comparison to morphologically similar species.
A. Passiflora jorgeana Mezzonato. -B. Passiflora bernaccii Mezzonato.
 -C. Passiflora mansoi (Mart.) Mast. var. mansoi. -D. Passiflora rhamnifolia Mast.

 Scale bar: A-D = 5 mm. 

Photos from L. S. B. Calazans (A), M. Silveira (B), and A. C. Mezzonato-Pires (C, D).

Passiflora jorgeana Mezzonato, sp. nov.

 Habitat of Passiflora jorgeana Mezzonato.
-A. General view of Cerrado s.l. -B. View of P. jorgeana climbing on small trees typical from Cerrado. -C. Detail of one climbing branch of P. jorgeana.

Ana Carolina Mezzonato-Pires, Luana Silva Braucks Calazans and Rodrigo Theófilo Valadares. 2021. Passiflora jorgeana, A New Species of Passiflora (Passifloraceae) from Bahia, Brazil. Novon: A Journal for Botanical Nomenclature. 29; 1-8. DOI: 10.3417/2020630 

Researchgate.net/publication/349083821_Passiflora_jorgeana_A_New_Species_from_Bahia_Brazil

[Botany • 2024] Piriqueta velutina (Turneraceae: Passifloraceae s.l.) • A New endangered Species from the Brazilian Cerrado

Piriqueta velutina L.Rocha & Arbo, 

in Rocha, Arbo, Antar et Costa Batista, 2024. 

 DOI: 10.1007/s12225-023-10157-1 

 twitter.com/KewBulletin 

Summary

Piriqueta velutina is described as a new species, illustrated, geographically mapped and its diagnostic characteristics and taxonomic affinities are described. The new species can be recognised mainly by the presence of serial branches (branches from serial buds predominantly in the apical portion of the plant), the short internodes and oblique or erect leaves which partially overlap in dried specimens; the ovate to elliptic leaf blade with a golden brown velutinous indumentum, and the conical or bulbous bases of the glandular setiform trichomes, frequently darkened on young leaf margins and on the abaxial surface. Its conservation status is preliminarily assessed as Endangered, it occurs in Brazilian Cerrado (savanna vegetation), in the Jalapão region, state of Tocantins, North region of Brazil.

Key Words: Brazilian flora, Malpighiales, taxonomy, Tocantins, Turneroideae.

Piriqueta velutina. A habit, detail showing the leaf indumentum with glandular setiform trichomes with darkened bulbous bases;
B – C seed; B raphe view; C lateral view. X = exostome, Z = chalaza (From J. Cordeiro et al. 2768 at HUEFS). Scale bar = 1 mm. Photos: G. M. Antar .

Piriqueta velutina L.Rocha & Arbo sp. nov. 

ETYMOLOGY. The epithet “velutina” refers to the species’ indumentum.

Lamarck Rocha, Maria Mercedes Arbo, Guilherme Medeiros Antar and Fabiane Rabelo da Costa Batista. 2024. Piriqueta velutina (Turneraceae, Passifloraceae s.l.): A New endangered Species from the Brazilian Cerrado. Kew Bull.  DOI: 10.1007/s12225-023-10157-1

  twitter.com/KewBulletin/status/1764264608259293547

[Botany • 2020] Turnera macrosperma (Turneraceae: Passifloraceae s.l.) • A New Species from the Brazilian Cerrado

 Turnera macrosperma L.Rocha & Arbo,    

in Rocha et Arbo, 2020. 

DOI: 10.1600/036364420X16033963649309 

 Researchgate.net/publication/347675851

Abstract 

Turnera macrosperma, a new species from the Brazilian Cerrado, is described and illustrated. The new species belongs to the series Turnera and can be characterized by the white petals with dark blue/violet basal spot and large seeds with papillose aril. SEM images, distribution map, and comments on taxonomy and morphology are presented.

Keywords: Malpighiales; Protected areas; gen. Turnera ser. Turnera; taxonomy

  Turnera macrosperma.
A-D. Populations from Tocantins (A-B, D) and Goiás (C). B. Detail of reproductive branch, showing a floral button (X) and an immature fruit (Y). D. Habitat, in savanna vegetation (Cerrado domain) of Tocantins, Brazil.

Photos: J. Fiori (A-B, D) and P. L. Ribeiro (C).

Turnera macrosperma L.Rocha & Arbo, sp. nov. 

Lamarck Rocha and Maria Mercedes Arbo. 2020. A New Species of Turnera (Turneraceae, Passifloraceae s. l.) from the Brazilian Cerrado. Systematic Botany. 45(4); 826-832. DOI: 10.1600/036364420X16033963649309

  Researchgate.net/publication/347675851_A_New_Species_of_Turnera_from_the_Brazilian_Cerrado

[Botany • 2023] Passiflora acreana (Passifloraceae) • A New Species of Passiflora Section Granadillastrum from Acre, Brazil

Passiflora acreana Mezzonato & Marc.Silveira, 

in Mezzonato-Pires, Silveira & Oliveira, 2023.

DOI: 10.11646/phytotaxa.579.1.4  

 facebook.com/MarcosSilveira963

Abstract

The new species described here was collected during expeditions carried out in the Lago do Amapá Environmental Protection Area, located in Acre State, Brazil. Morphological analysis and comparisons with close species confirmed that the collected specimens are a new species for science. Passiflora acreana was placed in P. subg. Passiflora, sect. Granadillastrum Triana & Planch., and can be distinguished by the presence of foliaceous, reniform, awned stipules, 4–8 pedunculate petiolar glands, with apex concave, and corona with 10 series of filaments. Descriptions, illustrations, distribution map, and conservation status are presented.

Keywords: Amazon rainforest, biodiversity, section Granadillastrum, Eudicots

Passiflora acreana Mezzonato & Marc.Silveira

Ana Carolina Mezzonato-Pires, Marcos Silveira, Mayk Honório de Oliveira. 2023. Passiflora acreana, A New Species of Passiflora subgenus Passiflora (Passifloraceae sensu stricto) from Acre, Brazil. Phytotaxa. 579(1); 39-46. DOI: 10.11646/phytotaxa.579.1.4 

  facebook.com/MarcosSilveira963/posts/10209575735145764

[Botany • 2022] Passiflora calicicalyx (Passifloraceae) • A New Species of Passiflora Section Decaloba from Bolivia

 Passiflora calicicalyx T. Boza & J. M. MacDougal, 

in MacDougal & Espinoza, 2022. 

DOI: 10.3417/2022304 

 ResearchGate.net/publication/359075988

Abstract

Passiflora calicicalyx T. Boza & J. M. MacDougal, a new species of Passiflora L. known only from near Cochabamba, Bolivia, is described and illustrated from photographs and dry material. The new species is similar to P. tatei Killip & Rusby but differs by being glabrescent, with glabrous ovary, and entire bracts only toward the base of the peduncle. It is placed in Passiflora subg. Decaloba (DC.) Rchb. sect. Decaloba DC.

Keywords: Bolivia, endemic, Passiflora, Passiflora tatei, Passifloraceae, subgenus Decaloba

 Passiflora calicicalyx T. Boza & J. M. MacDougal.
 -A. Habit, flowering branch. -B. Flower. -C. Flower, longitudinal section. -D. Left to right: individual coronal outer and inner filament, and petal. -E. Node with immature fruit.

Drawn from the type collection (Boza & Uzquiano 2094) by Alba L. Arbelaez.

 Passiflora calicicalyx T. Boza & J. M. MacDougal.
-A. Flower. -B. Flower, side view, with buds in background. -C. Branch with buds and open flowers, habit; note extrafloral nectaries on leaves. -D. Base of flowers, adaxial view showing cup shape where pedicel attaches; note also the carinate sepals and the small petals. -E. Transverse section of flower showing outer corona, inner corona and operculum, nectary, androgynophore and gynophore, and ovary. -F. Detail of flower showing (top downward) gynoecium, stamens, swollen base of androgynophore, operculum and inner corona, and base of outer coronal filaments fused to base of sepal.

Scale bars: A, B, D = 5 mm; C = 1 cm; E, F = 2 mm. 

Photographs of the type collection (Boza & Uzquiano 2094) in the field by Tatiana Boza.

Passiflora calicicalyx T. Boza & J. M. MacDougal, sp. nov.

Passiflora calicicalyx T. Boza & J. M. MacDougal a ceteris speciebus ad Passifloram L. subg. Decalobam (DC.) Rchb. sect. Decalobam DC. pertinentibus foliorum lobis lateralibus inter se angulum 23°–30° formantibus, corona alba vittis purpureis ornata atque androgynophoro 9–10.5 mm longo distinguitur; praecipue a specie simili P. tatei Killip & Rusby planta glabrescente, ovario glabro atque bracteis floralibus ad partem inferiorem pedunculi portatis distinguitur.  

Etymology. The species is named for its conspicuously and rather narrowly abaxially indented cup-shaped floral tube (hypanthium/floral cup/calyx tube; see Tillett, 1988), leading to a conspicuously expanded base of the androgynophore and a hidden attachment of the floral stipe (pedicel) into the flower. Literally, a chalice-shaped calyx, a play on words. 

John M. MacDougal and Tatiana Erika Boza Espinoza. 2022. Passiflora calicicalyx, A New Species in Section Decaloba (Passifloraceae) from Bolivia. Novon: A Journal for Botanical Nomenclature. 30; 13-17. DOI: 10.3417/2022304

  ResearchGate.net/publication/359075988_Passiflora_calicicalyx_a_New_Species_from_Bolivia

[Botany • 2022] Passiflora ketura (Passifloraceae) • A New Species of Passiflora Section Decaloba from Peru

Passiflora ketura S.S. Tillett & J.M. MacDougal,  

in MacDougal & Tillett, 2022.

  DOI: 10.11646/phytotaxa.556.1.1

Illustration by Alba Arbelaez.

 

Abstract

Passiflora ketura, a new species of Passiflora (Passifloraceae) endemic to the mountain forests in Amazonas Department, Northern Peru, is described and illustrated from herbarium material. It is compared to similar species and placed in subgenus Decaloba section Decaloba.

Keywords: Chachapoyas, IUCN Red List, Passiflora subgenus Decaloba, Eudicots

 

Passiflora ketura S.S. Tillett & J.M. MacDougal.
 A. Habit of flowering branch. B. Variations in leaf shape and two nodes with peduncles and stipules. C. Detail of laminar extrafloral nectary glands on abaxial surface of leaf at axil of central and a lateral vein. D. Flower. E. Seed, with remnant of raphe at right side.

A, C–D from Cevasco s.n.; B from Woytkowski 7804 (left) and Cevasco s.n. (middle and right); E from Woytkowski 7804. 

Illustration by Alba Arbelaez.

Passiflora ketura S.S. Tillett & J.M. MacDougal, sp. nov. 

Passiflora ketura is a small vine with bilobed leaves. It belongs to P. subgenus Decaloba supersection Decaloba based on the plicate operculum, transversely grooved seeds, variegated leaves, and to section Decaloba based on the presence of laminar extrafloral nectaries in rows between the main veins and by the verrucose or rugulose ridges on the seeds. It differs from the similar P. indecora by its narrow bracts (0.3–0.7 vs. 2–8 mm wide), and from the similar P. santos-llatasii by its smaller flowers (sepals 11–14 vs. 18–20 mm long) and smaller fruits (ca. 10 mm vs. ca. 40 mm long).

 Etymology. The name is derived from the Greek ketos, whale, and ura, tail, referring to the distinctive bilobed shape of the leaf that resembles the tail fluke of a cetacean.

John M. MacDougal and Stephen S. Tillett. 2022. Passiflora ketura, A New Species of Passiflora Section Decaloba (Passifloraceae) from Peru. Phytotaxa. 556(1); 1-7. DOI: 10.11646/phytotaxa.556.1.1

RESUMEN: Passiflora ketura, una nueva especie de Passiflora (Passifloraceae), endémica de los bosques de montaña en el Departamento Amazonas, Norte del Perú, se describe e ilustra de material de herbario. Se compara con especies similares y se propone ubicarla en el subgénero Decaloba sección Decaloba. 

Palabrasclave: Chachapoyas, Lista Roja de la IUCN, Passiflora subgénero Decaloba

[Botany • 2019] Passiflora menghaiensis (Passifloraceae) • A New Species from Yunnan, China

 Passiflora menghaiensis X. D. Ma, L. C. Yan & J. Y. Shen

in Ma, Yan, Krosnick, et al., 2019. 

DOI: 10.6165/tai.2019.64.97

Abstract

Passiflora menghaiensis (Passifloraceae), a new species from Menghai, Yunnan, China, is described and illustrated. The species is placed in Passiflora subgenus Decaloba, supersection Disemma, section Octandranthus. It is compared with two morphologically similar species in section Octandranthus, P. kwangtungensis and P. geminiflora. Passiflora menghaiensis differs from the preceeding species by the combination of two flowers per inflorescence, the outer series of coronal filaments white, the inner series of coronal filaments light green, and puberulous fruit. A complete morphological description of P. menghaiensis is provided, together with line drawings, photographs, a conservation assessment, and a diagnostic key to fourteen species of Passiflora subgenus Decaloba supersection Disemma section Octandranthus from China.

Keyword: China, Decaloba, Disemma, Octandranthus, Passiflora menghaiensis, Passifloraceae, Xishuangbanna, Yunnan

Fig. 2. Passiflora menghaiensis X. D. Ma, L. C. Yan & J. Y. Shen.
A. Habitat. B. Longitudinal section of flower. C. Seed. D. Petiole glandular nectaries. E. Abaxial leaf nectary.

Drawn by Zhen-Long Liang

       

Fig.1. Passiflora menghaiensis X. D. Ma, L. C. Yan & J. Y. Shen.
 A. Front view of flower. B. Later view of flower. C. Habitat. D, Back view of flower. E. Abaxial leaf surface. F. Mature seed. G. Mature fruit.

Photo by Jian-Yong Shen.

Passiflora menghaiensis X. D. Ma, L. C. Yan & J. Y. Shen, sp. nov

Diagnosis: P. menghaiensis can be distinguished from P. kwangtungensis, and P. geminiflora by several morphological features. Passiflora menghaiensis has two flowers per inflorescence, the outer series of coronal filaments are white, the inner series of coronal filaments are light green, and the fruit is puberulous.  

....

Etymology: The specific epithet is derived from the type locality, Menghai County, Xishuangbanna Prefecture, Yunnan, China.

Xing-Da Ma, Li-Chun Yan, Shawn E. Krosnick, Ren-Bin Zhu, Ji-Pu Shi and Jian-Yong Shen. 2019. Passiflora menghaiensis, A New Species of Passifloraceae from Yunnan, China. Taiwania. 64(2); 97-102. DOI: 10.6165/tai.2019.64.97

   

[Botany • 2018] Passiflora kumandayi • A New Species (Passifloraceae) from the Colombian Andes in A New Section within Subgenus Decaloba

Passiflora kumandayi M.A. Buitrago A. & Coca

in Buitrago A., MacDougal & Coca, 2018. 

DOI:  10.11646/phytotaxa.344.1.2 

Abstract

A new species of passion flower from the Cordillera Central of the Colombian Andes is here described; Passiflora kumandayi M.A. Buitrago A. & Coca (subgenus Decaloba, supersection Auriculata). This species, along with five other closely related Andean species, comprise a monophyletic group characterized by paired branched inflorescences and small flowers with short or absent androgynophores. A provisional key to the species in the newly described section Apodae is presented. Passiflora kumandayi is here illustrated and its affinities with related species are discussed based on morphology and phylogenetic binning analysis using molecular site weight calibration.

Keywords: Passiflora, section Apodae, subgenus Decaloba, Colombia, Molecular Site Weight Calibration, Eudicots

María Alejandra Buitrago A., John M. MacDougal and Luis Fernando Coca. 2018. Passiflora kumandayi (Passifloraceae), A New Species from the Colombian Andes in A New Section within Subgenus Decaloba. Phytotaxa. 344(1); 13–23. DOI:  10.11646/phytotaxa.344.1.2

[Botany • 2017] Delimitation of the Series Laurifoliae in the Genus Passiflora (Passifloraceae)

Flowers of some Passiflora series Laurifoliae.

DOI: 10.11646/phytotaxa.309.3.5 

Abstract

Within the huge diversity of genus Passiflora, series Laurifoliae constitutes a strikingly uniform group, widely distributed in neotropical rain forests, at low to moderate elevations. Given its morphological and ecological unity, Killip mentionned it as an «exceedingly difficult» group. The lack of clear morphological criteria has not helped in delimiting it, and the confusion has grown with the addition of new species and criteria. As a preliminary step in the study of diversity within series Laurifoliae, we re-examine its morphological delimitation, assessing how its current 29 species (including the highly similar P. pachyantha and P. killipiana) conform to 20 criteria from different authors. Three criteria (indumentum on vegetative parts, stipule glands, membranous limen) appear to be irrelevant, because they are either too variable or rarely recorded in the species descriptions. Using the 17 remaining ones, 24 typical species show very limited variations, five of them differing by only one criterion. Among them, we retain terete to angular stem, setaceous or linear stipules soon deciduous, petiolar glands in one pair, leaves oblong, neither peltate nor lobate, three glandular bract over 1 cm long and free, flowers pendent, with two campanulate outer series of filaments (most other series much reduced or aborted). Five species, P. guazumaefolia, P. kikiana, P. odontophylla, P. ischnoclada, and P. maliformis, differ by three to nine traits, not found in the typical representatives of the series, so they can be excluded from it. Passiflora kikiana should be classified into series Kermesinae. For the four other ones, a satisfactory solution implies a more global study, involving other series.

Keywords: Violales, Malpighiales, Passifloraceae, Passiflora, Eudicots

Figure 1. Flowers of the series Laurifoliae.
A: Passiflora acuminata (photo: J. B. Fernandes da Silva); B: P. ambigua (photo: R. Aguilar); C: P. venusta (photo: D. Scherberich); D: P. cerasina (photo: M. Vecchia); E: P. crenata (photo: M. Rome); F: P. fissurosa (photo: M. de Souza); G: P. laurifolia (photo: F. Booms); H: P. nigradenia (photo: D. Scherberich); I: P. nitida (photo: M. Rome); J: P. popenovii (photo: G. Coppens d’Eeckenbrugge) ; K: P. rufostipulata (photo: C. Houel); L: P. gabrielliana (photo: M. Rome) : M: P. ischnoclada (photo: C. Houel); N: P. kikiana in Cervi (2010); O: P. guazumaefolia (photo: J. Ocampo); P: P. odontophylla (flower of the type specimen). 

Conclusion: 

Several diagnostic characters used by Killip and Cervi (indumenta on vegetative organs, glandular stipules, bracts rounded at apex (with reservation), limen presence and shape), appear to be variable in the series, so they can still be used to differentiate species of the series, not to delimit the series. As a variable quantitative trait, leaf width is also questionable. The criteria “campanulate calyx tube” and “tubular or filamented operculum” are characters shared by all species of supersection Laurifolia. We can also exclude them from the definition of series Laurifoliae. These modifications allow restoring a homogeneous series Laurifoliae, which could be defined as follows:

 Series Laurifoliae — Plants glabrous to pubescent. Stems terete to angular, wingless, sometimes corky on old parts. Stipules linear to setaceous, early deciduous. Petiole with two discoid to oblong sessile glands (except in populations of P. popenovii). Leaves unlobate, oblong-lanceolate, entire to glandular-serrulate, not peltate. Bracts three, in involucre, free at base, more than 1 cm long and glandular. Flowers pendent. Outer series of filaments two, campanulate (most other series much reduced or aborted).

 Currently, series Laurifoliae includes 24 species corresponding to the above criteria: P. acuminata, P. ambigua, P. capparidifolia, P. cerasina, P. chaparensis, P. crenata, P. fernandezii, P. fissurosa, P. gabrielliana, P. gleasonii, P. kapiriensis, P. killipiana, P. laurifolia, P. metae (when type effectively deposited), P. nigradenia, P. nitida, P. pachyantha, P. pergrandis, P. phellos, P. popenovii, P. riparia, P. rufostipulata, P. tolimana, and P. venusta.

Maxime Rome and Geo Coppens d'Eeckenbrugge. 2017. Delimitation of the Series Laurifoliae in the Genus Passiflora (Passifloraceae). Phytotaxa. 309(3); 245–252.  DOI: 10.11646/phytotaxa.309.3.5