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8 results for “Schizaeaceae”
Text-fig. 7. Scanning electron microscope (SEM) images of spores with possible affinities to lycopodiopsids (a–c) and Schizaeaceae (d–g); Torres Vedras locality, Portugal. a) Densoisporites sp. from a clump of spores in proximal (left) and partial distal views (right) showing the narrow equatorial flange, long laesurae, and reticulum that is coarser on the distal surface than on the proximal surface; b, c) Unnamed microspores from clump of microspores in proximal (b) and distal (c) views showing finely reticulate surface; d, e) Cicatricosisporites ventusus fertile pinnules showing numerous attached sporangia (d) each with terminal annulus (arrowheads) and spores in situ (e); f) Cicatricosisporites sp. 1 spores from fertile pinnules bearing sporangia with a terminal in The Early Cretaceous Mesofossil Flora Of Torres Vedras (Ne Of Forte Da Forca), Portugal: A Palaeofloristic Analysis Of An Early Angiosperm Community
Text-fig. 7. Scanning electron microscope (SEM) images of spores with possible affinities to lycopodiopsids (a–c) and Schizaeaceae (d–g); Torres Vedras locality, Portugal. a) Densoisporites sp. from a clump of spores in proximal (left) and partial distal views (right) showing the narrow equatorial flange, long laesurae, and reticulum that is coarser on the distal surface than on the proximal surface; b, c) Unnamed microspores from clump of microspores in proximal (b) and distal (c) views showing finely reticulate surface; d, e) Cicatricosisporites ventusus fertile pinnules showing numerous attached sporangia (d) each with terminal annulus (arrowheads) and spores in situ (e); f) Cicatricosisporites sp. 1 spores from fertile pinnules bearing sporangia with a terminal
FIGURE 2. Actinostachys simplex Amoroso & Coritico. A in A new species of Actinostachys (Schizaeaceae) from Mindanao, Philippines
FIGURE 2. Actinostachys simplex Amoroso & Coritico. A) habit showing distinct stipe (st), narrow lamina (la) and single sessile sorophore (so), B) rhizome with obconic glandular hair (inset) and roots, C) tetragonal stipe in transection, D) grooved lamina with an indumentum in the margin, E) lamina transection showing thick-walled epidermal cells with an undifferentiated mesophyll, F) lamina with a distinct costa (c), G) single row of hypocytic stomata (sm) on each side of the costa, H) sorophore, I) top view of sporangia, J) side view of sporangia, K) striated spore
FIGURE 1 in A new species of Actinostachys (Schizaeaceae) from Mindanao, Philippines
FIGURE 1. Habit of Actinostachys simplex Amoroso & Coritico growing in a thick layer of decaying brown needle leaves of Gymnostoma rumphianum (Miq.) L.A.S.Johnson and bearing single sorophore (so) indicated by the arrows.
FIGURE 3 in A new species of grass fern, Schizaea erecta (Schizaeaceae), from Dinagat Island, Mindanao, Philippines
FIGURE 3. Schizaea erecta. Habit (A) and anatomy (B–J): A. Habit. B. Rhizome (c—cortex). C. Basal Stipe (ocs—outer cortical sclerenchyma, ics—inner cortical slerenchyma, x—xylem, ph—phloem). D. Middle stipe (g—groove). E. Apical stipe (w—wing). F. Lamina (1st branch) (c—costa). G. Lamina (2nd branch) (m—mesophyll, e—epidermis, h—hypodermis, x—xylem, ph—phloem). H. Lamina (3rd branch). I. Lamina (4th branch) (gc—guard cells, is—intercellular spaces). J. Lamina (5th branch).
FIGURE 4. Schizaea erecta. A in A new species of grass fern, Schizaea erecta (Schizaeaceae), from Dinagat Island, Mindanao, Philippines
FIGURE 4. Schizaea erecta. A. Single row of stomata on each side the of costa. B. Hypocytic stomata (c—costa; st—stomata).
FIGURE 2. Schizaea erecta. A. Habit showing erect axis. B. Short-creeping rhizome. C in A new species of grass fern, Schizaea erecta (Schizaeaceae), from Dinagat Island, Mindanao, Philippines
FIGURE 2. Schizaea erecta. A. Habit showing erect axis. B. Short-creeping rhizome. C. Dichotomous branching of lamina. D. Distal branch showing scattered projections of glandular hairs. E. Bases of glandular hairs. F. Sorophore. G. Lobes of sorophore showing the 2 rows of oblong sporangia with long white non-glandular hairs, and spore (inset). H. Dehisced sporangia showing vertical slit and long, white, non-glandular hairs.
FIGURE 1. Study Site. A in A new species of grass fern, Schizaea erecta (Schizaeaceae), from Dinagat Island, Mindanao, Philippines
FIGURE 1. Study Site. A. Map of the Philippines. B. Map of Dinagat Island showing Paragua Forest Reserve (Source: DENR PENRO Dinagat Islands). C, D. Panoramic views of Paragua Forest Reserve.
FIGURE 5 in A new species of grass fern, Schizaea erecta (Schizaeaceae), from Dinagat Island, Mindanao, Philippines
FIGURE 5. Habit and habitat of Schizaea erecta.
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