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145 results for “trichomes”
FIGURE. Petalidium parvifolium, flower and leaf morphology. A. Branchlet showing leaves that are not succulent; blade ± flat and margins without long, robust, multi-cellular trichomes and isolated, robust, stalked glandular trichomes. B. Flower in front view. C. Flower in lateral view. Scale bar = 5 mm. Photographs by W. Swanepoel. in Petalidium mannheimerae (Acanthaceae), a new species from Namibia and South Africa, with notes on the taxonomic identity of P. parvifolium
FIGURE. Petalidium parvifolium, flower and leaf morphology. A. Branchlet showing leaves that are not succulent; blade ± flat and margins without long, robust, multi-cellular trichomes and isolated, robust, stalked glandular trichomes. B. Flower in front view. C. Flower in lateral view. Scale bar = 5 mm. Photographs by W. Swanepoel.
FIGURE. Petalidium mannheimerae, morphology of flowers from different localities in the Richtersveld, Northern Cape, South Africa (A–D), and leaf morphology (E). A. Flower in lateral view (Sun Valley). B. Flower in front view (Sun Valley). C. Flower in front view (Kosies). D. Flowers (Umdaus). E. Branchlet showing leaves being semi-succulent, the blade subconduplicate to conduplicate, recurved towards apex, the margins with isolated, robust, stalked glandular trichomes. Scale bar = 5 mm. Photographs by M. Koekemoer (A–C), N. Jürgens (D), & W. Swanepoel (E). in Petalidium mannheimerae (Acanthaceae), a new species from Namibia and South Africa, with notes on the taxonomic identity of P. parvifolium
FIGURE. Petalidium mannheimerae, morphology of flowers from different localities in the Richtersveld, Northern Cape, South Africa (A–D), and leaf morphology (E). A. Flower in lateral view (Sun Valley). B. Flower in front view (Sun Valley). C. Flower in front view (Kosies). D. Flowers (Umdaus). E. Branchlet showing leaves being semi-succulent, the blade subconduplicate to conduplicate, recurved towards apex, the margins with isolated, robust, stalked glandular trichomes. Scale bar = 5 mm. Photographs by M. Koekemoer (A–C), N. Jürgens (D), & W. Swanepoel (E).
FIGURE 3 in A new species of Bernardia (Euphorbiaceae, Acalyphoideae) with stellate trichomes from South America
FIGURE 3. Geographical distribution of Bernardia fluviatilis. The white triangle indicates the type locality.
FIGURE 1. Bernardia fluviatilis. A in A new species of Bernardia (Euphorbiaceae, Acalyphoideae) with stellate trichomes from South America
FIGURE 1. Bernardia fluviatilis. A, fertile branch; B, detail of young branch showing indumentum; C, detail of abaxial leaf surface with basilaminar glands; D, detail of adaxial leaf surface with indumentum; E, detail of abaxial leaf surface with indumentum; F, detail of leaf margin with glandular teeth; G, fruits and staminate inflorescence; H, staminate cymule and flower at anthesis; I, staminate bract in ventral view; J, staminate bracteoles; K, pistillate flower; L, gynoecium; M, pistillate bract; N, pistillate sepal; O, seeds, from left to right in ventral, dorsal and lateral view. Drawings by Klei Sousa, based on Carrión & Antunes 1875.
FIGURE 2 in A new species of Bernardia (Euphorbiaceae, Acalyphoideae) with stellate trichomes from South America
FIGURE 2. Bernardia fluviatilis: A, habit; B, fertile branches with detail of leaf blade margin; C, staminate inflorescence with detail of flower; D, fruits. Photographs by J.F. Carrión.
FIGURE 2 in Croton crossolepis (Euphorbiaceae), a new species with an unusual trichome type from southwestern Madagascar
FIGURE 2. Croton crossolepis, photos of living plants. A. Large individual ca. 5 m tall (on left). Shorter tree on right with trilobed leaves is Jatropha mahafalensis Jumelle & Perrier de la Bâthie (1910: 180), and the lanceolate-leaved shrubs in the understory are Euphorbia antso Denis (1921: 45). B. Closeup of branches showing stout stems and drooping leaves. C. Bicolored leaves with rusty-colored lepidote trichomes on stems. Note green cambial layer of the stem where outer bark was peeled off. D. A small individual on bare limestone just 10 m away from individual shown in A. E. Detail of stem apex showing the silvery underside of a leaf with overlaying brown lepidote scales concentrated along the midvein and secondary veins. F. Branch apex showing the subterminal inflorescence in bud. Note sessile buds and elongate, linear bracts. (From van Ee et al. 823 except for D, photographed nearby; photos: P.E. Berry and B.W. van Ee).
FIGURE 1 in Croton crossolepis (Euphorbiaceae), a new species with an unusual trichome type from southwestern Madagascar
FIGURE 1. Distribution map of Croton crossolepis from known, geolocatable specimens in southwestern Toliara Province, Madagascar, all along Route Nationale 7 (in yellow). Inset shows location of the satellite photo within Madagascar. Google Earth Image © 2017 DigitalGlobe, reproduced per attribution guidelines.
FIGURE 3 in Croton crossolepis (Euphorbiaceae), a new species with an unusual trichome type from southwestern Madagascar
FIGURE 3. Croton crossolepis, micrographs of dried material. A. View of the base of a leaf with the junction of the petiole, showing scattered stellate trichomes on the adaxial surface and one of the shortly stipulate acropetiolar glands. B. Closeup of the center of a leaf blade on the abaxial surface, showing a background of pale-silvery, stellate trichomes and fewer larger, brown-centered, fimbriate-rayed lepidote trichomes concentrated on the midvein and secondary veins. C. Closeup of a young stem showing densely overlapping browncentered lepidote trichomes with sharp, fringed ray tips (these exemplify the specific epithet "crossolepis"). D. A rehydrated staminate flower (anthers became detached during drying, but one of the anthers is shown in upper right), showing the venose sepals and petals adaxially and ca. 18 filaments. (A–C from van Ee et al. 823, D from Willing 32; photos: K. Kainulainen).
FIGURE 2. Stylotrichium hortensiae. A. Floriferous branch. B. Abaxial surface showing the venation reticulodromous. C. Leaf transverse section. D. Uniseriate tector trichome. E. Uniseriate glandular trichome with multicellular head. F. Biseriate glandular trichome with unicellular head. G. Capitulum. H. Receptacles convex pilose. I. Corolla. J. Stamen. K. Style. L in Stylotrichium hortensiae (Asteraceae-Eupatorieae): A new species from Chapada Diamantina, Bahia, Brazil
FIGURE 2. Stylotrichium hortensiae. A. Floriferous branch. B. Abaxial surface showing the venation reticulodromous. C. Leaf transverse section. D. Uniseriate tector trichome. E. Uniseriate glandular trichome with multicellular head. F. Biseriate glandular trichome with unicellular head. G. Capitulum. H. Receptacles convex pilose. I. Corolla. J. Stamen. K. Style. L. Cypselae with subpaleaceous pappus. Illustrations by N. Nascimento.
FIGURE 2. Senecio ser. Culcitium. Foliar trichome. A in Synopsis of Senecio series Culcitium (Asteraceae: Senecioneae, Senecioninae) in the Andean region of South America
FIGURE 2. Senecio ser. Culcitium. Foliar trichome. A. Flagellate trichome (Senecio keshua). Scale bar = 20 μm.
FIGURE 3. Epidermal trichomes. A in Cornus sunhangii (Cornaceae), a new species from Tibet (China)
FIGURE 3. Epidermal trichomes. A. Cornus sunhangii; B. C. capitata; C. C. hongkongensis; D. C. multinervosa; a. Adaxial epidermal trichomes; b. Abaxial epidermal trichomes.
FIGURE 4. Brayopsis cuscoensis A. Plant top view. B. Plant lateral viw. C. Leaf surface showing trichomes. D in Two new Peruvian species of Brayopsis (Brassicaceae; Cruciferae), and a key to the species
FIGURE 4. Brayopsis cuscoensis A. Plant top view. B. Plant lateral viw. C. Leaf surface showing trichomes. D. Fruit lateral view showing replum, seeds, and valves. E. Replum, septum, and seeds. Scales (approximate): A, B = 5 mm; C−E = 1 mm, Photos by Paúl Gonzáles.
FIGURE 1. Ruellia anamariae, A. habitat. b. bracteoles and flower. c. calyx glandular trichomes. d. corolla and stamens. e. corolla lobes. f. a in Ruellia anamariae, a new species of Acanthaceae from northern Brazil
FIGURE 1. Ruellia anamariae, A. habitat. b. bracteoles and flower. c. calyx glandular trichomes. d. corolla and stamens. e. corolla lobes. f. a pair of stamens. g. anther. h. gynoecium and disc. i. immature closed capsule. j. open capsule and seeds. k. pentagonal seed. L. suborbicular seed. Drawn by João Silveira based on A.S. Reis et al. 46 (MG), M.P.M. Lima et al. 37 (MG) and P. Cavalcante 2074 (MG).
FIGURE 8. Character optimizations onto a 50 in Evolution of trichome morphology in Mimosa (Leguminosae-Mimosoideae)
FIGURE 8. Character optimizations onto a 50% majority-rule Bayesian tree based on a plastid phylogeny (modified from Simon et al. 2011). The evolution of glandular trichomes (a) and branched trichomes (b) are mapped onto the phylogeny using unordered parsimony optimization. Letters close to nodes correspond to main clades as in Simon et al. (2011), and vertical bars correspond to outgroups. Terminals with two or more states are represented by several squares. Please refer to Simon et al. (2011) for details on species names and clades.
FIGURE 6 in Evolution of trichome morphology in Mimosa (Leguminosae-Mimosoideae)
FIGURE 6. SEM and LM micrographs of non-glandular branched trichomes of Mimosa species. (A-C) M. diversipila, plumose trichomes on leaflet. (D-F) M. diversipila, barbellate trichomes on stem. (G, H) M. trianae, stellate trichome on leaflet. (I) M. verrucosa, transverse section showing unicellular radii. (J-L) M. schomburgkii, stellate trichome on leaflet. (M) M. schomburgkii, stellate-lepidote trichomes on corolla. (N, O) M. dalyi, lepidote trichome on leaflet. (N) General aspect of indumentum. (O) Detail of trichome showing the irregular outline.
FIGURE 7 in Evolution of trichome morphology in Mimosa (Leguminosae-Mimosoideae)
FIGURE 7. Indumentum diversity in Mimosa. (A, E) M. coruscocaesia. (B) M. verrucosa. (C) M. cyclophylla Taub. (D) Mimosa sp. (F) M. setosa Benth. (G) M. debilis Humb. & Bonpl. ex Willd. (H) M. diversipila. (I) M. aff. dichroa. (J) M. schomburgkii. (K) M. lewisii. (L) M. pseudoradula Glaz. ex Barneby. (M, N) M. pigra L. (O) M. sensitiva L. (P) M. claussenii Benth. Images by Juliana Santos.
FIGURE 3 in Evolution of trichome morphology in Mimosa (Leguminosae-Mimosoideae)
FIGURE 3. SEM and LM micrographs of sessile glandular trichomes of abaxial leaflets of Mimosa species. (A) M. adenophylla. (B) M. pteridifolia. (C) M. schomburgkii. (D) M. gemmulata. (E) M. hebecarpa. (F) M. nothopteris. (G) M. gemmulata. (H) M. trianae. (I) M. apodocarpa.
FIGURE 5 in Evolution of trichome morphology in Mimosa (Leguminosae-Mimosoideae)
FIGURE 5. SEM and LM micrographs of non-glandular branched trichomes of Mimosa species. (A-E) M. scabrella, verruciform trichomes. (A) General aspect of fruit surface. (B) Verruciform trichome. (C) Detail of trichome, showing the numerous, unicellular branches that cover the surface of the stalk. (D) Transverse section of fruit, general aspect. (E) Detail of transverse section showing conical stalk. (F) M. schomburgkii, verruciform trichome on midrib. (G, H) M. verrucosa, verruciform trichomes. (G) General aspect of trichome showing numerous branches. (H) Detail of central portion of trichome. (I-L) M. coruscocaesia. (I) Stem surface showing indumentum of medusiform trichomes and sessile glandular trichomes. (J, L) General aspect of medusiform trichomes, showing the cylindrical stalks. (K) Detail of trichome.
FIGURE 2 in Evolution of trichome morphology in Mimosa (Leguminosae-Mimosoideae)
FIGURE 2. SEM and LM micrographs of non-glandular unbranched trichomes of leaflets of Mimosa species. (A) M. adenophylla, adaxial surface. (B) M. acutistipula, adaxial surface. (C) M. gemmulata, transverse section. (D) M. pteridifolia, margin. (E) M. dalyi, abaxial surface. (F) M. tenuiflora, adaxial surface. (G) M. ophthalmocentra, adaxial surface. (H) M. gemmulata, adaxial surface. (I) M. dalyi, adaxial surface. (J) M. hapaloclada, margin. (K) M. glutinosa, adaxial surface. (L) M. insignis, adaxial surface.
FIGURE 4 in Evolution of trichome morphology in Mimosa (Leguminosae-Mimosoideae)
FIGURE 4. SEM and LM micrographs of glandular trichomes of Mimosa species. (A, B) M. acutistipula, stalked grandular trichomes. (C) M. verrucosa, sessile grandular trichomes. (D, E) M. lewisii, stalked glandular trichomes. (F, I) M. bimucronata, transverse section of substipitate glandular trichomes. (G, H) M. urandiensis, stalked glandular trichome.
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