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Gamochaeta brasiliana Deble (Asteraceae-Gnaphalieae), nome novo para Gamochaeta hiemalis (Rizzini) Cabrera
No full textUm novo nome – Gamochaeta brasiliana Deble – é atribuído a Gamochaeta hiemalis (Rizzini) Cabrera, por ser o mesmo ilegítimo
Herbertia guyunusae Deble 2022, sp. nov.
No full textHerbertia guyunusae Deble, sp. nov. (Figs. 1, 2, 3 and 4G) Diagnosis:— Herbertia guyunusae is distinguished from H. crosae by its outer tepals porcelain dark-violet colored (vs. pallid lilac), with one-celled lipidic trichomes scattered near at the base of the blade (vs. one-celled lipidic trichomes abundant, forming a triangular carpet along the claw and ending near at the base of the blade), by its oblong inner tepals, with 8–9 × 2–3 mm (vs. spathulate or elliptic, 5-6 × 2–3 mm), by its stamens with filaments united for 7–9 mm long and apically free for 2–3.5 mm (vs. united for 4–5 mm long and free apically for 1–1.5 mm), and by its bigger anthers, 5–6 mm long (vs. 4–5 mm long). Herbertia guyunusae differs from H. quareimana by its delicate habit (vs. robust), reaching 8–15 cm in height (vs. 15–35 cm in height), by its narrowly linear leaves, 7–16 × 0.1–0.2 cm (vs. linear-lanceolate or elliptic-lanceolate, 12–35 × 0.6–1.5 cm), by its smaller spathes, with 2.2–3.4 × 0.2–0.4 (vs. 4.4–6 × 0.4–0.8), by its smaller flowers, 3–4 cm diam. (vs. 6–7 cm diam.), and by its inner oblong tepals, with 8–9 × 2–3 mm (vs. ovate, ovate-lanceolate or elliptic-lanceolate, 12–16 × 5–6 mm). Type:— BRAZIL. Rio Grande do Sul: São Gabriel, RS 473, Cerro do Ouro, campo com solo raso, sobre rochas, 7 November 2019, L.P. Deble & B.P. Moreira 19622 (holotype PACA!, isotypes ICN, SI). Geophyte up to 8–15 cm high above the soil, underground stem up to 7 cm long. Bulb nearly ovate, 10–25 × 9–20 mm wide, prolonged in a collar up to 6 cm. Basal leaves up to 8, green at anthesis; blades narrowly linear, plicate, acute at apex, 7–16 × 0.1–0.2 cm. Flowering stem cylindrical, proximally foliose, unbranched or 2–branched. Caulinar leaf bracteose, 1.5–2.8 × 0.2–0.3 cm, concealing the peduncles of spathes. Spathes 1–2 per branch, fusiform, 2.2–3.4 × 0.2–0.4 cm, herbaceous, pallid-green, bivalved, two-flowered, pedunculate, peduncles 1–4 cm long; lower valve 1.2–2 cm long, the upper 2.2–3.4 cm long, both with membranous edges, at apex reddish-brown or brown, with purple parallel veins; pedicel filiform, 2–4 cm long. Flowers predominately porcelain dark-violet and whitish proximally, radially symmetrical, 3–4 cm diameter. Tepals whorls sharply dissimilar: outer tepals obovate-oblong, pandurate, 18–24 × 9–12 mm, lipidic trichomes scattered; blade obovate or obovate-oblong, dark-violet, 13–17 × 9–12 mm; claws broadly cuneate, 5–7 × 4–5 mm, opaline-white, densely covered by dark-blue stripes and dots; inner tepals oblong, 8–9 × 2–3 mm, violet, base purplish-violet, apex long attenuate, obtuse, slightly reflexed, central concavity with a transverse medial stripe yellow and purple spotted, which extending at the margin of the blade, one-celled lipidic trichomes abundant covering the central concavity. Filaments united for 7–9 mm long in a bottle shaped column and apically free for 2–3.5 mm; column straw-colored or pallid violet with purple stripes, and purple near at the base; anthers linear, yellow, curved at dehiscence, 5–6 mm long; locules yellowish, pollen yellow. Ovary obovate-clavate, 4–6 × 2.5–3.5 mm. Unbranched part of style 7–10 mm long. Style branches channeled, 3.5–4 mm long, at the apex bifid for 1.5–1.8 mm, the divisions divergent, recurved, facing down, and apically stigmatic. Capsules nearly spherical or broadly clavate, 6–11 × 4.5–6 mm. Seeds oblong to obconical, angular, reddish-brown, epidermis striate, foveolate, 0.8–1.4 mm long. Eponym: —The delicacy of the flowers of Herbertia guyunusae lead me to propose the specific epithet guyunusae, which pays a tribute to María Micaela Guyunusa (1806–1834). Guyunusa was one of the last Charrúa women; she was born in Paysandú and was one of the four Charrúas sent by Francois de Curel to France. She died in Lyon in the year 1834 (Rivet 1930, Asenjo 2007). Specimens examined (paratypes): — BRAZIL. Rio Grande do Sul: Bagé, Joca Tavares, 17 October 2008, L.P. Deble & al. 11017 (PACA). Dom Pedrito, Torquato Severo: 28 October 2019, L. P. Deble & B.P. Moreira 19641 (ICN, PACA, SI). Lavras do Sul, Ibaré, 31 October 2009, L.P. Deble & al. 11344 (PACA). São Gabriel, RS 473, 1 km após a bifurcação das Três Estradas, 4 November 2020, L.P. Deble & B.P. Moreira 19703 (ICN, PACA, SI). Phenology: —Specimens with flowers and fruits can be found during October and November. The flowers open only one day, in the morning, withering early afternoon. On cloudy days the flowers remain opened up to the middle afternoon. Distribution and habitat: — Herbertia guyunusae was found in Bagé, Dom Pedrito, Lavras do Sul, São Gabriel, and Santa Margarida do Sul municipalities, in south-central Rio Grande do Sul state, Brazil. The plants prosper in small areas of grasslands developed under shallow soils, in mosaic with drier sites and often with rocky outcrops of different origins, but mainly granitic rocks from Santa Maria formation, associations of granites and metamorphic rocks, and volcanoclastic rocks from Acampamento Velho formation (Sommer et al. 2011), located in the Campos region of the grassland ecosystem of Río de La Plata, the most extensive grassland region to the Southeast South American Grasslands (SESA Grasslands, sensu Azpiroz et al. 2012). These environments are rich in diversity, occurring several species, among them prosper many rare and threatened as Calibrachoa pubescens (Sprengel 1825: 615) Stehmann in Stehmann & Bohls (2007: 240), Clara gracilis Lopes & Andreata (2006: 298), Heterothalamus rupestris Deble et al. (2003: 1), and several endemic Cactaceae of the genera Frailea Britton & Rose (1922: 208) and Parodia Spegazzini (1923: 70). The new species grows together with Cicendia quadrangularis (Lamarck 1786: 645) Grisebach (1838: 157), Gamochaeta stachydifolia (Lamarck 1786: 757) Cabrera (1961: 382), Hypericum polyanthemum Klotzsch ex Reichardt (1878: 189), Rhynchospora tenuis Link in Sprengel et al. (1820: 76), Scoparia ericacea Chamisso & Schlechtendal (1827: 603), and Scoparia montevidensis (Sprengel 1825: 42) Fries (1907: 22), In the same environments of occurrence of Herbertia guyunusae many others bulbous were registered, including the Iridaceae Cypella pusilla (Link & Otto 1828: 125) Jackson (1893: 689), and Kelissa brasiliensis (Baker 1877: 134) Ravenna (1981: 106), and several Amaryllidaceae, among them Beauverdia dyalistemon (Guaglianone 1971: 800) Sassone & Guaglianone in Sassone et al. (2014: 774), B. hirtella (Kunth 1843: 465) Herter (1943: 509) subsp. glabrata Deble (2021a: 22), B. vittata (Grisebach 1879: 318) Herter (1943: 511), and Nothoscordum collinum Ravenna (1989a: 41). Herbertia caerulea, H. lahue and H. pulchella were registered in nearby areas, but not occur in the same places of H. guyunusae. Conservation: — Herbertia guyunusae is known only by ten localities, and all known populations contain few individuals. The populations spread in an extension of occurrence of 1,093 km ² and area of occupancy of 40 km ². The species occurs in specific habitat, as it only grows on humid rocky grasslands, mainly volcanoclastic rocks and granitic rocks, and the bulbs developed just above the rocks or in rocky concavities. These environments are being modified by economic activities, as mining and agriculture. The mining activities and the invasion of exotic species in the region of occurrence of Herbertia guyunusae, notably “capim-anonni-2” (Eragrostis plana Nees von Esenbeck 1841: 390), an exotic invasive species native from Africa, result in a direct threat to this taxon. In accordance with the criteria of IUCN (2019), Herbertia guyunusae can be considered Endangered (EN), based in direct threat, geographic distribution, occupation area and population size [EN B1+B2bc (i, ii, iii, iv) + c (iii, iv) + C1+C2a (i), b]. Discussion: — Herbertia guyunusae is easily recognized by its narrowly linear leaves, smaller spathes, and flowers with perigone porcelain dark violet, having inner tepals oblong, slightly reflexed and obtuse at apex and with central concavity containing a transverse medial stripe yellow and purple spotted, which extending to the margin of the blade, and stamens with filaments free apically. Even with several distinctive features, Herbertia guyunusae can be confused with H. crosae by its similar vegetative aspect and with H. quareimana by its perigone morphology. However, Herbertia guyunusae differs from Herbertia crosae by its outer tepals porcelain dark-violet colored, with one-celled lipidic trichomes scattered near at the base of the blade, by its inner tepals oblong, and stamens with filaments longer and by its bigger anthers. Herbertia guyunusae promptly differs from H. quareimana by its delicate habit, by its narrowly linear leaves, shorter spathes, much smaller flowers, and narrower and oblong inner tepals. Herbertia guyunusae easily differs in several aspects from H. amatorum, H. pulchella and H. zebrina, the other three species that have filaments free apically. H. amatorum and H. pulchella display more robust habit, wider leaves, larger spathes and bigger flowers, and outer tepals with one-celled lipidic trichomes abundant, forming a heart-shaped area along the claw and ending near at the base of the blade. H. zebrina readily distinguishes to H. guyunusae by its white perigone, by its outer tepals with one-celled lipidic trichomes abundant, forming a narrowly triangular carpet along the claw and ending near at the base of the blade, by its inner tepals broadly spathulate, white and purple striped, and rounded or truncate apex, and by its smaller anthers. Additional morphological characteristics and measurement information can be accessed in the Table 1.Published as part of Deble, Leonardo Paz, 2022, Herbertia guyunusae, a new species of Iridaceae from the grassland ecosystem of Río de La Plata, South America, pp. 55-66 in Phytotaxa 570 (1) on pages 56-59, DOI: 10.11646/phytotaxa.570.1.5, http://zenodo.org/record/725150
Cypella luteogibbosa Deble 2012, sp. nov.
No full textCypella luteogibbosa Deble, sp. nov. (Figures 1, 3A–B, and 4) Type:— BRAZIL. Rio Grande do Sul: Quaraí, 28 km ao sul do trevo para o Passo da Guarda, 19 October 2010, fl., fr., L . P. Deble & A. S. de Oliveira-Deble 10265 (holotype: PACA!). A Cypellae fucatae cui maxime proxima foliis linear-ellipticis (non anguste linearis), perigonium album (non pallide aurantiacum) et stigmatae lobi divergentibus (non convergentibus) differt. A Cypellae ostenianae valde proxima, spatha uniflora (non biflora), tepala exteriora spathulata, 10–12 mm lata (non obovata, 15–17 mm lata), productis bene differt. Plant up to 15–35 cm high above the soil, underground stem up to 10 cm long. Bulb ovoid, outer cataphylls darker brown, 20–35 mm × 20–30 mm, prolonged in a short collar. Basal leaves green at anthesis 2–4; blades linear-elliptic, plicate, apex acute, 10–26 × 0.2–0.5 cm. Flowering stems 10-27 cm long, 2-3 branched. Spathes 2–3, herbaceous, pallid-green, bivalved, one-flowered, pedunculate, peduncles 1.8–3 cm long; outer valve 1.4–2.2 cm long, the inner 2.5–3 cm long, both with membranous edges and orange longitudinal glandular strips; pedicel filiform, 2.8–3.2 cm long. Flowers predominately white, 28–36 mm diameter. Tepals whorls sharply dissimilar: outer tepals white, spatulate, 18–22 mm × 10–12 mm, panduriform, patent distally, dark purplish-brown veined, and with orange glandular trichomes concentrate in proximal half. Inner tepals geniculate-revolute, 8–9 mm × 8.5–9 mm, proximal half with adaxial surface striated, distal portion keelshaped, and a light yellow macula and dark-purple dots; abaxial surface mostly white, with a yellow hump. Filaments cream-white or pallid pink, 2–2.4 mm long, at the base bulbiform and connate; anthers oblong 3.2–3.5 mm × 0.7–1 mm; connective white to cream, locules dark-brown, pollen ochraceous. Ovary pallidgreen, 5–6 mm × 1.8–2.1 mm, with orange glandular dots scattered. Style 7–8 mm long. Style arms channeled, 3–4 mm long. Crests at the style apex 3, adaxial crests 3.4–4.2 mm long, one abaxial crest lobed, 0.5–0.8 mm long. Capsule obovate-oblong, 14–21 mm × 5.5–7.5 mm. Seeds oblong to obconical, angulated, reddish-brown, epidermis papillose striate, 1.5–2 mm long. Distribution and habitat: — Cypella luteogibbosa is endemic to Quaraí municipality, in southwest Rio Grande do Sul, Brazil (Figure 4). Individuals grow on stony grasslands. Phenology: —Specimens with flowers and capsules can be found between October-December. The flowers open only one day, during the morning, and close early afternoon. Conservation status: — Cypella luteogibbosa occurs in an extent of occurrence smaller than 300 km 2 and the area of occupancy is less than 10 km 2. Only four populations are known, each composed by just a few individuals. According to the IUCN Red List (IUCN 2011) the species can be assigned to Critically Endangered risk category (CR, B2a, b(iii), and D) due to the very small area of occupancy, few individuals known, decline in the quality of habitat and few places of occurrence. Etymology: —From the Latin luteous meaning yellow and gibbosus that mean hump, and referring to shape of inner tepals with a yellow hump on abaxial surface. Additional specimens examined (paratypes): — BRAZIL. Rio Grande do Sul: Quaraí, Cerro do Jarau, entre rochas, October 2010, F. S . Alves 17 (PACA!); cerro do Jarau, stony grasslands, 30°10'21.55"S, 56°32"10.33" W, 16 December 2010, L. P . Deble & A. S. de Oliveira-Deble 11604 (PACA!); 12 km east of the city, on stony grassland, after fire, 30°26'32.64"S, 56°19"39.98" W, 9 November 2011 (PACA!). Comments: — Cypella luteogibbosa is closely related to Cypella fucata Ravenna (1981b: 18), both species displaying small habit, one-flowered spathes, and darker purplish-brown veined outer tepals. However, C. luteogibbosa differs by the shape and size of basal leaves, white perigone, size and shape of inner tepals and divergent adaxial crests of style apices. The new species also resembles Cypella osteniana Beauveard (1923: 165), but that species differs by two-flowered spathes, shape of outer tepals, shape and size of inner tepals, and broader connective of anthers. Cypella luteogibbosa may be distinguished from C. fucata and C. osteniana based on the characters listed in the Table 1.Published as part of Deble, Leonardo Paz, Deble, Anabela Silveira De Oliveira & Alves, Fabiano Da Silva, 2012, Two new species of Cypella (Iridaceae: Tigridieae) from Rio Grande do Sul, Brazil, pp. 59-68 in Phytotaxa 71 (1) on pages 60-62, DOI: 10.11646/phytotaxa.71.1.12, http://zenodo.org/record/506641
Nuevas especies de Baccharis (Asteraceae, Astereae) para Brasil
No full textIn a recent review of the genus Baccharis L. we recognized five new species: Bacchariscrassipappa Deble & Oliveira-Deble, B. inexspectata Deble & Oliveira-Deble, B.multipaniculata Oliveira-Deble & Deble, B. nassauvioides Oliveira-Deble & Deble and B.suberectifolia Oliveira-Deble & Deble. All species are described and illustrated and delimitationwith allied taxa is discussedEn una revisión reciente del género Baccharis L. para Brasil, fueron reconocidas cincoespecies nuevas: Baccharis crassipappa Deble & Oliveira-Deble, B. inexspectata Deble &Oliveira-Deble, B. multipaniculata Oliveira-Deble & Deble, B. nassauvioides Oliveira-Deble &Deble y B. suberectifolia Oliveira-Deble & Deble. Todas las especies son descriptas, ilustradasy diferenciadas de los taxones relacionado
NEW SPECIES OF BACCHARIS (ASTERACEAE, ASTEREAE) FROM BRAZIL
No full textIn a recent review of the genus Baccharis L. we recognized five new species: Bacchariscrassipappa Deble & Oliveira-Deble, B. inexspectata Deble & Oliveira-Deble, B.multipaniculata Oliveira-Deble & Deble, B. nassauvioides Oliveira-Deble & Deble and B.suberectifolia Oliveira-Deble & Deble. All species are described and illustrated and delimitationwith allied taxa is discusse
Lessingianthus magnificus Deble, Dematteis & Marchiori (Asteraceae), nova espécie do norte do Uruguai e Rio Grande do Sul (Brasil)
No full textÉ descrita e ilustrada uma nova espécie de Asteraceae: Lessingianthus magnificus Deble, Dematteis & Marchiori, do norte do Uruguai e Rio Grande do Sul (Brasil). Relacionada a Lessingianthus macrocephalus (Less.) H. Rob., ela difere pelo tipo de indumento das folhas, bem como pelas brácteas involucrais obtusas e densamente lanosas.A new species of Asteraceae is presently described and illustrated: Lessingianthus magnificus Deble, Dematteis & Marchiori, from the State of Rio Grande do Sul (Brazil) and northern Uruguay. Close to Lessingianthus macrocephalus (Less.) H. Rob., it differs by the type of hairs on leaves, as well as by the obtuse and dense lanate involucral bracteis.Fil: Deble, Leonardo Paz. Universidade Federal de Santa Maria; BrasilFil: Dematteis, Massimiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; ArgentinaFil: Marchiori, José Newton Cardoso. Universidade Federal de Santa Maria; Brasi
Herbertia amabilis Deble & F. S. Alves 2013, spec. nova
No full text<i>Herbertia amabilis</i> Deble & F. S. Alves, spec. nova (Fig. 1, 2). <p> <b>Typus: BRAZIL. Rio Grande do Sul:</b> Júlio de Castilhos, “no campo, entre gramíneas, no solo argiloso, flores brancas”, 29°18’43’’S 53°49’39’W, 23.XII.2010, fl. fr., <i>L. P.Deble 12721, A.S. de Oliveira-Deble, J. N. C. Marchiori & F. S. Alves</i> (holo-: SI!; iso-: CTES!, ICN!).</p> <p> <i>Species nova ab Herbertiae lahue subsp. amoenae affinis, sed magna statura (30-40 cm alta vs 8-15 cm alta), foliis longioribus et anguste linearis (18-35 cm longis, 0.3-0.5 cm latisvs 8-15 cm longis, 0.4-1 cm latis),ovarium obovatoclavatum, 3.5-5 mm longum (versus obovato-oblongum, 6-8 mm longum), tepala exteriora albida, (vs coeruleo-violacea</i>),tepalainteriora albida et lutea (vs atro-violacea), <i>optime distincta.</i></p> <p> <i>Plants</i> up to 30-40 cm high, subterranean stems 10-20 cm long. <i>Bulb</i> ovoid, 18-24 mm wide, sometimes prolonged in a short collar. <i>Leaves</i> 2, plicate, narrowly linear, 18-35 cm long, 0.3-0.5 cm wide. <i>Spathes</i> 2-4, herbaceous, pallid-green, bivalved, two-flowered, pedunculate, peduncles 4-8.5 cm long; lower valve 2.3-3.4 cm long, the upper 3.5-4.5 cm long, both with membranous edges; pedicel filiform, 4-5 cm long. <i>Flowers</i> predominately white, radially symmetrical, 3.5-4 cm diam. <i>Tepals</i> whorls sharply dissimilar: outer tepals obovate, 18-21 mm long, 9-12 mm wide, white, with yellow dots scattered in the proximal half, and a yellow medial stripe at the base; inner tepals oblanceolate, 5-6 mm long, 1.3-1.8 mm wide, white, with a yellow macula in medial portion, apex long attenuate, acuminate, reflexed. <i>Filaments</i> entirely united in a column, 4.2-4.8 mm long, yellowish along the column; anthers linear, yellow, curved at dehiscence, 7-7.5 mm long; pollen yellow. <i>Ovary</i> obovate-clavate, 3.5-5 mm long, 1.8-2.5 mm wide. <i>Style</i> 9-9.5 mm long; style arms channeled, 4.5-5 mm long, at the apex bifid for 1.8-2.2 mm, the divisions divaricate, recurved, apically stigmatic. <i>Capsules</i> broadly oblong-clavate, 9-11 mm long, 4.5-5 mm wide. <i>Seeds</i> oblong to obconical, angular, reddish-brown, epidermis striate, 1.5-2 mm long.</p> <p> <i>Etymology. –</i> The specific epithet means kind, delicate and refers to the pretty and delicate flowers of the new species.</p> <p> <i>Distribution and ecology. – Herbertia amabilis</i> is a narrow endemic of central Rio Grande do Sul State, where just two populations are known. Plants grow in grasslands on clay soils in the hydrographic basin of the Guassupi river southwest of Júlio de Castilhos city (Fig. 3).</p> <p> <i>Phenology. –</i> Flowering and fruiting occur during December.</p> <p> <i>Conservation. –</i> During the review of herbaria, no exsiccates of <i>H. amabilis</i> were found. The only known collections are those made by the authors and here cited. The extent of occurrence of <i>H. amabilis</i> comprises less than 100 km 2 and the populations size are smaller than 10 km 2; only two populations are know and with few individuals. Furthermore, agriculture, and urban expansion affect directly the range of the species. Due to the rarity, fragmentation of populations, and observed threats, it seems prudent to include <i>H. amabilis</i> in a preliminary status of Critically Endangered category of the IUCN Red List of Endangered plant species according to the following criteria “CR B1, 2a, b; D” (IUCN, 2011).</p> <p> <i>Taxonomical note. – Herbertia amabilis</i> by its androgynoecium filaments entirely united forming a column, its ascendant style arms, and the size of flowers is most closely related with <i>H. lahue</i> subsp. <i>amoena</i>, but can be segregated by the following features: robust habit (30-40 cm vs 8-15 cm), narrowly linear leaves, with 18-35 cm long, 0.3-0.5 cm wide (vs linear-lanceolate leaves, with 8-15 cm long, 0.4-1 cm wide), style arms at the apex recurved (vs not or slightly recurved), and ovary obovate-clavate, 3.5-5 mm long (vs obovate-oblong, 6-8 mm long). Additionally, the flowers are predominately white (vs blue-violet, rarely white in atypical individuals occurring among normal ones), with a yellow macula in medial portion of inner tepals (vs without yellow macula). <i>Herbertia crosae</i>, another close species differs by purple dots along the column of androgynoecium filaments (vs without purple dots), free apically up to 1 mm long (vs entirely united), and smaller anthers (4-5 mm vs 7-7.5 mm long). <i>Herbertia darwinii</i> has androgynoecium features similar with the new species, but its differs by large 4-5.7 cm wide, blue-violet flowers, ovary 6- 8.5 mm long, and leaves 1-2 cm wide.</p> <p> <i>Paratypus. –</i> <b>BRAZIL. Rio Grande do Sul:</b> Júlio de Castilhos, “no campo, entre gramíneas, no solo argiloso, flores brancas”, 29°18’43’’S 53°49’39’W, 23.XII.2010, fr, <i>L. P. Deble 12722, A. S. de Oliveira-Deble, J. N. C. Marchiori & F. S. Alves</i> (CTES!).</p>Published as part of <i>Deble, Leonardo Paz & Alves, Fabiano da Silva, 2013, Herbertia amabilis Deble & F. S. Alves (Iridaceae), a new species from Brazil, pp. 133-137 in Candollea 68 (1)</i> on pages 134-136, DOI: 10.15553/c2013v681a18, <a href="http://zenodo.org/record/5715240">http://zenodo.org/record/5715240</a>
Uma nova espécie de Achyrocline (Less.) DC. (Asteraceae) do Rio Grande do Sul (Brasil)
No full textÉ descrita e ilustrada uma nova espécie de Asteraceae: Achyrocline luisiana Deble. Reconhecida como próxima a Achyrocline eriodes (Mattf.) Deble & Marchiori e A. marchiorii Deble, a espécie tem ocorrência restrita ao estado do Rio Grande do Sul. É fornecida uma chave para separação das espécies sul-brasileiras de Achyrocline
Um novo nome e duas novas combinações na tribo Gnaphalieae (Asteraceae)
No full textUm novo nome – Gamochaeta chilensis Deble – é atribuído a Gamochaeta foliosa (Phil.) Anderberg, por ser este ilegítimo. Duas novas combinações são propostas: Gamochaeta grazielae (Rizzini) Deble, para Gnaphalium grazielae Rizzini, e Pseudognaphalium cabrerae (S.E. Freire) Deble, para Gnaphalium cabrerae S.E. Freire
Lessingianthus magnificus Deble, Dematteis & Marchiori (Asteraceae), nova espécie do norte do Uruguai e Rio Grande do Sul (Brasil)
No full textÉ descrita e ilustrada uma nova espécie de Asteraceae: Lessingianthus magnificus Deble, Dematteis & Marchiori, do norte do Uruguai e Rio Grande do Sul (Brasil). Relacionada a Lessingianthus macrocephalus (Less.) H. Rob., ela difere pelo tipo de indumento das folhas, bem como pelas brácteas involucrais obtusas e densamente lanosas
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