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FIGURE 11A–D in A taxonomic study of Praxelinae (Asteraceae-Eupatorieae) in Rio Grande do Sul, Brazil

FIGURE 11A–D: Chromolaena gentianoides. A. Fertile specimen. B. Capitulum. C. Involucral bracts. D. Floret. E–I: Chromolaena hirsuta. E. Fertile specimen. F. Capitulum. G. Involucral bracts. H. Floret. I. Palea.

FIGURE 9A–C in A taxonomic study of Praxelinae (Asteraceae-Eupatorieae) in Rio Grande do Sul, Brazil

FIGURE 9A–C: Chromolaena congesta. A. General view. B. Primary capitulescence. C. Xylopodium. D–F: Chromolaena elliptica. D. Primary capitulescence. E. Leaves. F. General view. Credits: Anderson Christ (A–F).

FIGURE 3A–C in A taxonomic study of Praxelinae (Asteraceae-Eupatorieae) in Rio Grande do Sul, Brazil

FIGURE 3A–C: Praxelis clematidea. A. Fertile branch. B. Leaves. C. Primary capitulescence. D–E: Praxelis missionum. D. Fertile specimens. E. Capitulum. Credits: Sérgio Bordignon (A–B), Anderson Christ (C–E).

FIGURE 6A–C in A taxonomic study of Praxelinae (Asteraceae-Eupatorieae) in Rio Grande do Sul, Brazil

FIGURE 6A–C: Chromolaena callilepis. A. Primary capitulescence. B. Leaves. C. Capitula. D–F: Chromolaena christieana. D. General view. E. Primary capitulescence. F. Leaves. Credits: Angelo Schneider (A) and Anderson Christ (B–F).

FIGURE 7 in A taxonomic study of Praxelinae (Asteraceae-Eupatorieae) in Rio Grande do Sul, Brazil

FIGURE 7: Distribution of C. callilepis (triangles) and C. christieana (circle) in Rio Grande do Sul.

FIGURE 2A–D in A taxonomic study of Praxelinae (Asteraceae-Eupatorieae) in Rio Grande do Sul, Brazil

FIGURE 2A–D: Praxelis clematidea. A. Fertile branch. B. Capitulum. C. Involucral bracts. D. Floret. E–H: Praxelis missionum. E. Fertile specimen. F. Capitulum. G. Involucral bracts. H. Floret.

FIGURE 8A–E in A taxonomic study of Praxelinae (Asteraceae-Eupatorieae) in Rio Grande do Sul, Brazil

FIGURE 8A–E: Chromolaena congesta. A. Fertile specimen. B. Capitulum. C. Involucral bracts. D. Floret. E. Palea. F–J: Chromolaena elliptica. F. Fertile specimen. G. Capitulum. H. Involucral bracts. I. Floret. J. Xylopodium.

FIGURE 1A in A taxonomic study of Praxelinae (Asteraceae-Eupatorieae) in Rio Grande do Sul, Brazil

FIGURE 1A: Location of Rio Grande do Sul (dark gray) in Brazil (gray) and South America (light gray). 1B: Division of the state in eleven physiographic regions according to Fortes (1959). Acronyms: AUR: Alto Uruguai; CAM: Campanha; CCS: Campos de Cima da Serra; DCE: Depressão Central; EIN: Encosta Inferior do Nordeste; ESN: Encosta Superior do Nordeste; ESU: Encosta do Sudeste; LIT: Litoral; MIS: Missões; PME: Planalto Médio; SSE: Serra do Sudeste.

FIGURE 5A–E in A taxonomic study of Praxelinae (Asteraceae-Eupatorieae) in Rio Grande do Sul, Brazil

FIGURE 5A–E: Chromolaena callilepis. A. Fertile branch. B. Capitulum. C. Involucral bracts. D. Floret. E. Palea. F–J: Chromolaena christieana. F. Fertile branch. G. Capitulum. H. Involucral bracts. I. Floret. J. Peduncle.

FIGURE 4 in A taxonomic study of Praxelinae (Asteraceae-Eupatorieae) in Rio Grande do Sul, Brazil

FIGURE 4: Distribution of P. clematidea (triangles) and P. missionum (circles) in Rio Grande do Sul.

FIGURE 2. Acmella kalelii. a in A new species of jambú (Acmella, Heliantheae, Asteraceae) from Amazonia, Brazil

FIGURE 2. Acmella kalelii. a. habit; b. involucral bract; c. ray floret; d. palea; e. disk floret; f. anther; g. style and stigma; h. ray cypsela; i. disk cypsela.

FIGURE 3. Acmella kalelii. a–b in A new species of jambú (Acmella, Heliantheae, Asteraceae) from Amazonia, Brazil

FIGURE 3. Acmella kalelii. a–b. palea; c–d. disk floret; e. ray floret; f–g. disk florets with 4 and 5 lobes; h. anther; i. style and stigma; j. ray cypsela; k. disk cypsela.

FIGURE 2 in A new species of the genus Leucheria (Asteraceae, Nassauvieae) from Argentina

FIGURE 2. Cluster analysis using Euclidean distance of 11 morphological characters of 16 taxa of the genus Leucheria. Red lines indicate the three species studied. Roman numerals indicate the three clades with different morphological characteristics. Blue line shows significantly different clades.

FIGURE 1 in A new species of the genus Leucheria (Asteraceae, Nassauvieae) from Argentina

FIGURE 1. Phylogenetic reconstruction of the genus Leucheria and representatives of the Tribe Nassauvieae using Bayesian Inference with nuclear and plastid regions. Posterior probability values are found above the branches. Asterisks indicate nodes without support (>0.90). The principal clades are denoted by letter A (acaulescent/subacaulescent species with solitary capitula) and B (caulescent species with numerous capitula). Subclades (Sc) are denoted by roman numerals (I, II, III) (figure from Jara-Arancio et al. 2017). Red branches indicate the species studied.

FIGURE 4. Pollen. A in Taxonomy and reclassification of South African Asteraceae genus Elytropappus (Gnaphalieae, Asteraceae), the description of two new genera and two new species

FIGURE 4. Pollen. A. Dicerothamnus adpressus (Hugo 2513); B. Dicerothamnus rhinocerotis (Taylor 12055); C. Elytropappus aridus (Koekemoer 1206); D. Elytropappus hispidus (Koekemoer 1110); E. Elytropappus monticola (Koekemoer 1135); F. Myrovernix gnaphaloides (Koekemoer 1203); G. Myrovernix intricata (Koekemoer 577); H. Myrovernix longifolius (Koekemoer 580); I. Myrovernix scaber (Koekemoer 1234a). Scale bar = 10 μm.

FIGURE 4 in A new species of the genus Leucheria (Asteraceae, Nassauvieae) from Argentina

FIGURE 4. Holotype of Leucheria diemii var. purpurea deposited in the Gaspar Xuarez herbarium (BAA), now renamed as L. arancioi.

FIGURE 3. Anthers. A in Taxonomy and reclassification of South African Asteraceae genus Elytropappus (Gnaphalieae, Asteraceae), the description of two new genera and two new species

FIGURE 3. Anthers. A. Anther tips of Dicerothamnus rhinocerotis (Koekemoer 547); B. Anther tails of Dicerothamnus rhinocerotis (Koekemoer 547); C. Anther tips of Elytropappus aridus (Koekemoer 1206), D. Anther tails of Elytropappus aridus (Koekemoer 1206). Scale bar = 0.5 mm.

FIGURE 1 in Taxonomy and reclassification of South African Asteraceae genus Elytropappus (Gnaphalieae, Asteraceae), the description of two new genera and two new species

FIGURE 1. Cellular structure of leaf glands. A. Sunken gland of Dicerothamnus adpressus (Koekemoer 600); B. Sunken gland of Dicerothamnus rhinocerotis (Koekemoer 517); C. Stalked gland of Elytropappus monticola (Koekemoer 1135); D. Stalked gland of Myrovernix gnaphaloides (Koekemoer 1203); E. Stalked gland of Myrovernix longifolius (Koekemoer 1219); F. Stalked gland of Myrovernix scaber (Koekemoer 621). Scale bar = 0.05 mm.

FIGURE 5. Cypselas. A in Taxonomy and reclassification of South African Asteraceae genus Elytropappus (Gnaphalieae, Asteraceae), the description of two new genera and two new species

FIGURE 5. Cypselas. A. Dicerothamnus adpressus (Koekemoer 605); B. Dicerothamnus rhinocerotis (Esterhuysen 10148); C. Elytropappus aridus (Acocks 18272); D. Elytropappus hispidus (Esterhuysen s.n.); E. Elytropappus monticola (Koekemoer 1135); F. Myrovernix gnaphaloides (Hugo 2601); G. Myrovernix intricata (Goldblatt 5518); H. Myrovernix longifolius (Koekemoer 1227); I. Immature cypsela of Myrovernix scaber (Koekemoer 1253). Scale bar = 0.15 mm.

FIGURE 2. Leaf glands. A in Taxonomy and reclassification of South African Asteraceae genus Elytropappus (Gnaphalieae, Asteraceae), the description of two new genera and two new species

FIGURE 2. Leaf glands. A. Dicerothamnus adpressus (Koekemoer 600); B. Dicerothamnus adpressus (Koekemoer 1235); C. Dicerothamnus rhinocerotis (Koekemoer 517); D. Elytropappus aridus (Koekemoer 611); E–F. Elytropappus hispidus (Cusson s.n.); G–H. Elytropappus monticola (Koekemoer 1135) I. Myrovernix glandulosus (Koekemoer 615); J–K. Myrovernix gnaphaloides (Koekemoer 1224); L–M. Myrovernix intricata (Koekemoer 577); N. Myrovernix longifolius (Koekemoer 1253); O. Myrovernix scaber (Koekemoer 1234a). Scale bar = 0.2 mm.