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189 results for “seed morphology”
FIGURE 4 in Pollen and seed micro-morphology of the genus Polygala (Polygalaceae) in Iran
FIGURE 4. SEM micrographs of pollen grains. P. anatolica: M) details of aperture and psilate surface sculpture—P. mazandaranica: N) equatorial view of a whole grain showing psilate ornamentation (arrow shows a ramification of two colpi); O) polar view of a whole grain showing verrucate apocolpium—P. erioptera: P) equatorial view of a whole grain (arrows show contraction in apocolpium); Q) equatorial view of grain (arrow shows a ramification of two colpi); R) details of aperture, psilate surface ornamentation and gibbous opercula; S) polar view of two grains showing micro-perforated apocolpium; T) close-up of apocolpium area with micro-perforate ornamentation.
FIGURE 19 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 19. Orthophytum caraibense (Vidal s.n.). A–B. General view of the habitat in the type locality, in Bonito de Minas, RPPN Vereda da Caraíba, Minas Gerais state. C. Habit. D. Habit of the holotype that flowered in cultivation. E. Details of the corolla. F. Floral bracts and flower. G. Proximal portion of the unappendaged petal. H. Conduplicate-patent stigma type. Bars = 5 mm. (A–C photos: C.V. Vidal).
FIGURE 16 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 16. Adaxial view of the anthers in pre-anthesis (A, E, G, K, M, Q, S, W) and at anthesis (B, H, N, T), and abaxial view in pre-anthesis (C, F, I, L, O, R, U, X) and at anthesis (D, J, P, V). A–D. Siqueiranthus cinereus (Leme 9785). E–F. Cryptanthus zonatus (Leme 6234). G–J. C. lacerdae (Leme 9828). K–L. C. robsonianus (Leme 8896). M–P. Orthophytum maracasense (Leme 9615). Q–R. O. leprosum (Leme 9539). S–V. Krenakanthus roseolilacinus (Leme 8922). W–X. Orthocryptanthus vasconcelosianus (Leme 8673). Bars = 2 mm.
FIGURE 12 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 12. Siqueiranthus cinereus at type locality: A. Habit. B–C. Details of the inflorescence. D. José Alves Siqueira Filho during his field studies with the type population. E–F. Different stages and sizes of the caulescent habit. G. Details of the inflorescence. Bars = 20 cm. (Photos: J.A. Siqueira).
FIGURE 9 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 9. Species of Orthocryptanthus: A. O. vasconcelosianus (Leme 8673). B. O. santaritensis (Leme 8945). C. O. arcanus (Leme 9093).
FIGURE 18 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 18. Longitudinal cross-section of the ovary (A–D) and fruits (E–J) of Siqueiranthus and Cryptanthus. A. S. cinereus (Leme 9785). B. C. lacerdae (Leme 9828). C. C. robsonianus (Leme 8896). D. C. pseudopetiolatus (Leme 9812). E–F. S. cinereus (Leme 9785). G. C. colnagoi (Leme 9154). H. C. sp. nov. (Leme 9253). I. C. pseudopetiolatus (Leme 9812). J. C. santosii (Leme 9811). K. Seeds of S. cinereus (Leme 9785). L–N. Seeds of Cryptanthus. L. C. aff. beuckeri (Leme 3891). M. C. bahianus (Leme 9616). N. C. argyrophyllus (Leme 8896). O. Krenakanthus roseolilacinus (Leme 8922). P. Orthocryptanthus vasconcelosianus (Leme 8673). Bars = 5 mm (A–J). Bars = 2 mm (K–P).
FIGURE 8 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 8. Krenakanthus roseolilacinus (Leme 8922): A. Habit at type locality. B. Frontal view of the flowers. C. Lateral view of the flower. D. Petal. E. Petal, stamens, and style. F. Longitudinal section of ovary. Bars = 5 mm (Photo: A. R. Vasconcelos Leitão).
FIGURE 6 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 6. Seed coat anatomy of Krenakanthus, Orthocryptanthus (Ortcr.) and Orthophytum (Ortph.) A, C. Seed in median cross section. B, D–J: seed coat in median cross-section, in the antiraphe region. A, B. K. roseolilacinus (Leme 8922). C, D. Ortph. vagans (Leme 505). E. Ortph. compactum (Leme 5604). F. Ortph. leprosum (Leme 7897). G. Ortph. maracasense (Leme 9617). H. Ortph. pseudovagans (Leme 6821). I. Ortph. saxicola (Leme 6058). J. Ortcr. vasconcelosianus (Leme 8673). Arrow = vascular bundle. en = endosperm. r = raphe. sc = seed coat. The numbers indicate the different layers of the seed coat. 1 = endotegmen (with discontinuous elements of mesotegmen). 2 = exotegmen. 3 = endotesta. 4 = exotesta. Bars: A, C = 500 μm. B, D–J: 50 μm.
FIGURE 4. Embryo morphology. A–L in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 4. Embryo morphology. A–L. Isolated embryo in lateral view of Cryptanthus, Orthophytum, and Siqueiranthus. A. C. aff. beuckeri (Leme 3891). B. C. aff. burle-marxii (Leme 9487). C. C. pickelii (Leme 9665). D. C. colnagoi (Leme 9154). E. C. bahianus (Leme 9616). F. S. cinereus (Leme 9785). G. O. saxicola (Leme 6058). H. O. maracasense (Leme 9617). I. O. compactum (Leme 5604). J. O. pseudovagans (Leme 6821). K. O. leprosum (Leme 7897). L. O. vagans (Leme 505). cn = cotyledonary node; cot = cotyledon; h-r = hypocotyl-radicle axis. s = suspensor. Bars = 250 μm.
FIGURE 2 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 2. Maximum clade credibility tree of a post-burnin Bayesian analysis (15 million generations), based on nuclear and plastid data only. Bayesian posterior probabilities (PP) and maximum-likelihood bootstrap support (BS) are shown (PP/BS). The scale bar below the tree shows the branch length for 0.004 substitutions per nucleotide position.
FIGURE 7 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 7. Raphe anatomy of Cryptanthus, Krenakanthus, Orthocryptanthus (Ortcr.), Orthophytum (Ortph.), and Siqueiranthus. A–K. Median cross section of the raphe region. A. C. colnagoi (Leme 9154). B. C. aff. burle-marxii (Leme 9487). C. C. bahianus (Leme 9616). D. C. pickelii (Leme 9665). Detail of the tegmen in raphe region. E. S. cinereus (Leme 9785). F. K. roseolilacinus (Leme 8922). G. Ortcr. vasconcelosianus (Leme 8673). H. Ortph. compactum (Leme 5604). I. Ortph. maracasense (Leme 9617). J. Ortph. vagans (Leme 505). K. Ortph. pseudovagans (Leme 6821). Arrow: vascular bundle. Arrowhead: protein grain. en = endosperm. r = raphe. tg = tegmen. The numbers in D indicate: 1 = endotegmen. 2 = mesotegmen. 3 = exotegmen. 4 = endotesta. 5 = parenchyma. Bars: A–C, E–K = 100 μm. D = 50 μm.
FIGURE 17. Pollen. A–D in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 17. Pollen. A–D. Siqueiranthus cinereus (Leme 9785). A. View of the sulcus covered with exine elements partially forming a net. B. Details of the exine elements. C. Details of the slightly flat muri. D. View of the reticulum. E–F. Cryptanthus beuckeri (Leme 7341). E. Partial view of the reticulum and the sulcus covered with exine elements forming a net. F. Details of the muri. G–H. C. argyrophyllus (Leme 4872). G. Details of the muri. H. View of the sulcus covered with exine elements forming a net. I–J. C. bromelioides (Leme 016-B). I. View of the sulcus covered with exine elements forming a net. J. Details of the muri. K. Partial view of the reticulum and the sulcus of Krenakanthus roseolilacinus (Leme 8922). L–N. Partial view of the reticulum and the sulcus of Orthocryptanthus. L. O. vasconcelosianus (Leme 8673). M. O. santaritensis (Leme 8945). N. O. arcanus (Leme 9093). Bars = 10 µm (A, D–F, H, I, K–N). Bars = 5 µm (B, C, G, J) (SEM photos: H. Halbritter).
FIGURE 14. Petal appendages and callosites. A–C in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 14. Petal appendages and callosites. A–C. Shape variation of the scutelliform appendage type of Siqueiranthus cinereus (Leme 9785) with tendency to cupuliform type. D–E. Well-developed longitudinal callosities of Cryptanthus. D. C. lutandensis (Leme 9743). E. C. zonatus (Leme 6234). F–G. Petal appendages of Orthophytum. F. Echinatiform type of O. buranhense (Leme 9148). G. Scutelliform type of O. diamantinense (Leme 5835). H. Cupuliform appendage type of Krenakanthus roseolilacinus (Leme 8922). I–J. Orthocryptanthus. I. Well-developed longitudinal callosities of O. vasconcelosianus (Leme 8673). J. Sacciform appendage type of O. arcanus (Leme 9093). Bars = 2 mm.
FIGURE 1 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 1. Maximum clade credibility tree of a post-burnin Bayesian analysis (15 million generations) based on nuclear (agt1, ETS, phyC), plastid (matK, trnH-psbA, ycf1 pos. 1113-2103, ycf1 pos. 4492-5440) as well as ecological and morphological data. Above the branches, Bayesian posterior probabilities (PP) and maximum-likelihood bootstrap support (BS) are shown (PP/BS). The scale bar below the tree shows the branch length for 0.005 substitutions per nucleotide position.
FIGURE 13. A–F in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 13. A–F. Siqueiranthus cinereus (Leme 9785): A. Basal fascicle. B. Outer floral bracts of the fascicles. C. Flower. D. Details of the calyx and corolla. E. Sepals. F. Petal and stamen. G–I. Cryptanthus aff. beuckeri (Leme 3891). G. Basal fascicle. H. Flower. I. Petals and stamens. J–M. Orthophytum spp. J. Floral bract and flower of O. atalaiense (Leme 6628). K. Distal part of the flower of O. buranhense (Leme 9148). L. O. foliosum (Leme 8010). M. O. grossiorum (Leme 5584). Bars = 5 mm.
FIGURE 5 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 5. Seed coat anatomy of Cryptanthus and Siqueiranthus. A. seed in median cross section. B–G. seed coat in median crosssection, in the antiraphe region. A–B. S. cinereus (Leme 9785). C. C. pickelii (Leme 9665). D. C. colnagoi (Leme 9154). E. C. aff. burlemarxii (Leme 9487). F. C. aff. beuckeri (Leme 3891). G. C. bahianus (Leme 9616). Arrow = vascular bundle. en = endosperm. r = raphe. sc = seed coat. The numbers indicate the different layers of the seed coat. 1 = endotegmen (with discontinuous elements of mesotegmen). 1' = mesotegmen. 2 = exotegmen. 3 = endotesta. 3' = mesotesta. 4 = exotesta. Bars: A = 500 μm. B-G = 50 μm.
FIGURE 11 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 11. Siqueiranthus cinereus: A–B. General view of the habit at type locality. C. Individuals growing at the border of the shrubby vegetation. D. Long-caulescent individuals growing propped up by the surrounding bushes in moderate shade condition. E. Individuals growing under partially shaded condition. F. Extensive cattle breading areas surrounding the vegetation fragment where S. cinereus lives. (Photos: J.A. Siqueira).
FIGURE 3 in New genera and a new species in the "Cryptanthoid Complex" (Bromeliaceae: Bromelioideae) based on the morphology of recently discovered species, seed anatomy, and improvements in molecular phylogeny
FIGURE 3. Seed morphology. Seeds in lateral view (A, C–E, G–J, M, O, Q–T) and raphe view (B, F, H, L, N, P). A–B. Cryptanthus aff. beuckeri (Leme 3891). C. C. colnagoi (Leme 9154). D. C. pickelii (Leme 9665). E–F. C. bahianus (Leme 9616). G-I. Siqueiranthus cinereus (Leme 9785). G and I show two morphological variations for this species. J. Krenakanthus roseolilacinus (Leme 8922). K–L. Orthocryptanthus vasconcelosianus (Leme 8673). M–N. Orthophytum maracasense (Leme 9617). O–P. O. compactum (Leme 5604). Q. O. leprosum (Leme 7897). R. O. pseudovagans (Leme 6821). S. O. vagans (Leme 505). T. O. saxicola (Leme 6058). c = chalazal region or inconspicuous chalazal appendage. m = micropylar region. r = raphe. Bars = 0.5 mm.
FIGURE 3 in Seed Morphological and Anatomical Structures as Taxonomy Tool for Turkish Hyacinthella Schur (Asparagaceae) Taxa
FIGURE 3. The seed anatomical structures of the examined Hyacinthella taxa; 1: H. acutiloba, 2: H. campanulata, 3: H. glabrescens, 4: H. heldreichii (t= testa, co= cotyledon, e= epidermis, se= subepidermis, sm= storage material, em= embryo).
FIGURE 1 in Seed Morphological and Anatomical Structures as Taxonomy Tool for Turkish Hyacinthella Schur (Asparagaceae) Taxa
FIGURE 1. The seeds of the studied Hyacinthella taxa; 1: H. acutiloba, 2: H. campanulata, 3: H. glabrescens, 4: H. heldreichii, 5: H. hispida, 6: H. lazulina, 7: H. lineata, 8: H. micrantha, 9: H. nervosa, 10: H. siirtensis and 11: H. venusta (Scale bars= 1 mm).
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