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729 results for “Asparagaceae”
FIGURE 2 in Dipcadi janae-shrirangii (Asparagaceae), a new species from the lateritic plateaus of Konkan region of Maharashtra, India
FIGURE 2. Comparison between selected characters of D. janae-shrirangii and D. concanense. Flowers, L.S. & top view of flowers (A), (C) & (F) in D. janae-shrirangii and (B), (D) & (E) in D. concanense. Outer perianth lobe (G) in D. janae-shrirangii and (H) in D. concanense. Inner perianth lobe (I) in D. janae-shrirangii and (J) in D. concanense. Anther (K) in D. janae-shrirangii and (L) in D. concanense. Bract (M) in D. janae-shrirangii and (N) in D. concanense. Style (O) in D. janae-shrirangii and (P) in D. concanense. Ovary (Q) in D. janae-shrirangii and (R) in D. concanense. Capsule (S) in D. janae-shrirangii and (T) in D. concanense. Seeds (U) in D. janaeshrirangii and (V) in D. concanense. Photos by A.N. Chandore.
FIGURE 2. Ophiopogon elatior. A in Ophiopogon elatior, a new species of Asparagaceae from Yunnan, China
FIGURE 2. Ophiopogon elatior. A. Flowering plant in habitat; B. Inflorescence; C. Top view of flowers; D. Young fruits. (Photos by B.Liu).
FIGURE 1. Ophiopogon elatior. A in Ophiopogon elatior, a new species of Asparagaceae from Yunnan, China
FIGURE 1. Ophiopogon elatior. A. Flowering plant; B. Part of leaf blade showing the minutely serrulate margin; C. Flower bud; D. Bract; E. Lateral view of flower; F. Top view of flower; G. Perianths and pistil; H. Stamen; I. Young fruit. (Drawn by Y.B.Sun).
FIGURE. 1 in A revised infrageneric classification of Bellevalia Lapeyr. (Asparagaceae: Scilloideae) based on molecular analysis
FIGURE. 1. Cilia at the leaf margin. a) B. dubia, MPU, 017875, (type specimen). b) B. dubia, MA, 01-00021987. c) B. macrobotrys, TARI, 62698. d) B. glauca, TARI, 19421. e) B. longistyla, IAUM, 51. f) B. saviczii, IAUM, 33. g) B. speciosa, TARI, 11924. h) B. heweri, IAUM, 123. × 400.
FIGURE. 2 in A revised infrageneric classification of Bellevalia Lapeyr. (Asparagaceae: Scilloideae) based on molecular analysis
FIGURE. 2. Phylogenetic tree of matK region resulting from the Bayesian inference of four sections of Bellevalia. The sections are based on the Feinbrun's (1940) classification. Numbers at nodes represent posterior probability values.
FIGURE. 5 in A revised infrageneric classification of Bellevalia Lapeyr. (Asparagaceae: Scilloideae) based on molecular analysis
FIGURE. 5. Phylogenetic tree of trnL-F spacer chloroplastic region resulting from the Bayesian inference of four sections of Bellevalia. The sections are based on the Feinbrun's (1940) classification. Numbers at nodes represent posterior probability values.
FIGURE. 6 in A revised infrageneric classification of Bellevalia Lapeyr. (Asparagaceae: Scilloideae) based on molecular analysis
FIGURE. 6. Phylogenetic tree of four chloroplastic regions resulting from the Bayesian inference of four sections of Bellevalia. The sections are based on the Feinbrun's (1940) classification. Numbers at nodes represent posterior prob.
FIGURE. 4 in A revised infrageneric classification of Bellevalia Lapeyr. (Asparagaceae: Scilloideae) based on molecular analysis
FIGURE. 4. Phylogenetic tree of trnL intron chloroplastic region resulting from the Bayesian inference of four sections of Bellevalia. The sections are based on the Feinbrun's (1940) classification. Numbers at nodes represent posterior probability values.
FIGURE. 3 in A revised infrageneric classification of Bellevalia Lapeyr. (Asparagaceae: Scilloideae) based on molecular analysis
FIGURE. 3. Phylogenetic tree of rbcL chloroplastic region resulting from the Bayesian inference of four sections of Bellevalia. The sections are based on the Feinbrun's (1940) classification. Numbers at nodes represent posterior probability values.
A new sectional classification of Lachenalia (Asparagaceae) based on a multilocus DNA phylogeny
<p><i>Lachenalia</i><b> </b>J.Jacq. ex Murray (Asparagaceae; Scilloideae; Hyacintheae) is a large and morphologically diverse genus of more than 140 bulbous species endemic to southern Africa. Previous attempts to infer a well resolved and robustly supported phylogeny of <i>Lachenalia</i> using Sanger sequencing of candidate loci and/or morphological characters have been largely unsuccessful. Consequently, the current infrageneric classification is artificial and there is a need to explore alternative avenues to produce a phylogenetic classification. In this paper we present a novel phylogenetic hypothesis for <i>Lachenalia</i> inferred using maximum likelihood and coalescent-based species tree estimation (ASTRAL) as applied to 378 hybrid-enrichment loci. Our tree is well resolved and well supported, providing strong support for a monophyletic radiation of the genus in southern Africa and a solid foundation for a revised infrageneric classification. The well-supported placement of <i>L. isopetala</i> Jacq. as sister to <i>Lachenalia</i> + <i>Massonia</i> supports the establishment of a new monotypic genus, <i>Pseudolachenalia</i> G.D.Duncan, to accommodate this species. Conversely, the inclusion of species previously classified as <i>Polyxena</i> Kunth within the <i>Lachenalia</i> clade supports the transfer of these species to <i>Lachenalia</i>. Within <i>Lachenalia</i>, the delimitation of subgenera and sections is complicated by the highly imbalanced character of the phylogeny and by the high levels of homoplasy shown by most morphological characters traditionally used to delimit species in this group. Nonetheless, we propose an infrageneric taxonomy comprising 10 morphologically distinct, monophyletic sections. The largest of these, section <i>Lachenalia</i>, is further divided into 13 more-or-less diagnosable, monophyletic subsections. Keys to the sections of <i>Lachenalia</i>, and to the subsections of section <i>Lachenalia</i>, are provided.</p>
FIGURE 3 in Aspidistra sonlaensis (Asparagaceae, Nolinoideae), a new species from northern Vietnam
FIGURE 3. Map of northern Vietnam showing distribution of Aspidistra sonlaensis. Design by M. Nuraliev.
FIGURE 2. Aspidistra sonlaensis, floral morphology. A–C in Aspidistra sonlaensis (Asparagaceae, Nolinoideae), a new species from northern Vietnam
FIGURE 2. Aspidistra sonlaensis, floral morphology. A–C. Flower, side, oblique and top views. D. Flower with reddish perigone, top view. E, F. Flower with longitudinally dissected perigone. G. Flower with distal half of perigone removed, top view. H. Perigone base, showing stamens, top view. I. Pistil, view from below. Trinh Ngoc Bon et al. SCU 2020-01 (type). Photos by N.B. Trinh, correction and design by M. Nuraliev.
FIGURE 1. Aspidistra sonlaensis. A. Habit. B in Aspidistra sonlaensis (Asparagaceae, Nolinoideae), a new species from northern Vietnam
FIGURE 1. Aspidistra sonlaensis. A. Habit. B. Rhizome, showing petioles of two foliage leaves and scars of the others. C. Shoot system. D. Inflorescence. E. Flower bud, top view. F. Fruit, side view. G. Fruit, cross section. Trinh Ngoc Bon et al. SCU 2020-01 (type). Photos by N.B. Trinh, correction and design by M. Nuraliev.
Peeling back the layers: First phylogenomic insights into the Ledebouriinae (Scilloideae, Asparagaceae)
<p>The Ledebouriinae (Scilloideae, Asparagaceae) are a widespread group of bulbous geophytes found predominantly throughout seasonal climates in sub-Saharan Africa, with a handful of taxa in Madagascar, the Middle East, India, and Sri Lanka. Phylogenetic relationships within the groups have been historically difficult to elucidate. Here, we provide the first phylogenomic perspective into the Ledebouriinae. Using the Angiosperms353 targeted enrichment probe set, we consistently recovered four major clades (i.e., two <i>Ledebouria</i> clades, <i>Drimiopsis</i>, and <i>Resnova</i>). The two <i>Ledebouria</i> clades closely align with geography, either consisting almost entirely of sub-Saharan African taxa (<i>Ledebouria</i> Clade A), or East African and non-African taxa (<i>Ledebouria</i> Clade B). Our results suggest that the Ledebouriinae likely underwent a rapid radiation leading to rampant incomplete lineage sorting. We additionally find evidence for potential historical hybridization between <i>Drimiopsis</i> and a subclade within <i>Ledebouria</i> Clade A.</p>
FIGURE 2. Peliosanthes luteoviridis. A. Habit. B, C in Peliosanthes luteoviridis (Asparagaceae), a new species with yellowish green flowers from southern Vietnam
FIGURE 2. Peliosanthes luteoviridis. A. Habit. B, C. Part of foliage leaf, adaxial (B) and abaxial (C) views. D. Fruiting inflorescence (showing seeds). E. Flower, view from below. F. Flower, top view. G, H. Inflorescences. I. Portion of inflorescence. Photos by T.T.D. Pham & K.S. Nguyen from Nguyen Sinh Khang et al. NSK 1354B-1, NSK 1354B-2; correction and design by N. Vislobokov.
FIGURE 1. Peliosanthes luteoviridis. A. Habit. B. Foliage leaf, adaxial view. C. Inflorescences. D, E in Peliosanthes luteoviridis (Asparagaceae), a new species with yellowish green flowers from southern Vietnam
FIGURE 1. Peliosanthes luteoviridis. A. Habit. B. Foliage leaf, adaxial view. C. Inflorescences. D, E. Portions of inflorescence. F. Flower, side view. G. Flower, longitudinal section. Photos: A, B by N.A. Vislobokov from Vislobokov 19203; C‒G by M.S. Romanov from 2019.15598; correction and design by N.A. Vislobokov.
FIGURE 1 in Aspidistra saccata (Asparagaceae), a new species with erect stem from limestone areas in Guangxi, China
FIGURE 1. Aspidistra saccata: A–B. Habit of flowering plant; C. Flowers; D. Top view of flower bud; E. Side view of flower bud; F. Perianth, dissected opened to show pistil and stamens; G. Stems, show leaves attachment; H. Leaves; I. Young fruit. Photos by Xue-Yan Huang, correction and design by Dong-Xin Nong (The plate made from Yu-De Peng et al. 451424211102001LY).
FIGURE 2 in Rohdea medogensis (Asparagaceae), a new species from southeast Tibet, China
FIGURE 2. Rohdea medogensis. Originally collected by Feng Hui Zhe and Gong Zheng in Tibet, Medog County, Beibeng, ca.1000 m. Cultivated in Zaozhuang University. A. Habit. B. Inflorescence and fruits. C. Fruits. D. Seeds. E & F. Pistils, E. Top view; F. Side view.
FIGURE 1. Rohdea medogensis. A. Habit. B, C & D. Inflorescence. E. Flower and bracts. F in Rohdea medogensis (Asparagaceae), a new species from southeast Tibet, China
FIGURE 1. Rohdea medogensis. A. Habit. B, C & D. Inflorescence. E. Flower and bracts. F. Flower in longitudinal section. G. Flower with lobes removed, top view. H. Half of flower in longitudinal section. I. Half of flower without pistil in longitudinal section. J. Pistil. K. Perianth with a stamen. L. Leaf blade.
FIGURE 1 in Yucca muscipula (Asparagaceae, Agavoideae), a new species from central Mexico
FIGURE 1. Yucca muscipula: a) complete plant, b) leaf, c) apex leaf, d) branch inflorescence, e) flower, f) dissected flower, g) stamen, h) gynoecium, i) fruit, j) seeds. Illustration by Albino Luna Sánchez.
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