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5 results for “Dennstaedtia”
Herbarium specimen image of Dennstaedtia punctilobula, part of the collection of Finnish Museum of Natural History LUOMUS, University of Helsinki
Part of a training dataset of scanned herbarium specimens. The data paper and a summary landing page will be published on Zenodo as it gets published.<br><br>Content of this deposition:<br><br>- A JSON-LD datafile listing the label data associated with this herbarium specimen. The Darwin and Dublin Core data standards are used for most values.<br>- A JPEG image file of the scanned herbarium sheet.<br>- A lossless TIFF image from which the JPEG image has been derived.<br>- Two PNG files containing segmented image overlays of the scanned herbarium sheet. The _all extension indicates that all labels, color charts and pieces of text have received a different color against a black background color. The _sel extension indicates that these elements are white if they're barcode labels, yellow if they're color charts and red if they're anything else.
FIGURE 2. Dennstaedtia dissecta. A in The genus Dennstaedtia Bernh. (Dennstaedtiaceae) in Argentina
FIGURE 2. Dennstaedtia dissecta. A. Geographical distribution of the species in Argentina (▲ = location of studied populations). B. Pinnules lanceolate, sessile. C. Segments of basal pinnula, with crenate-rounded apex, that shows the sori borning in the sinuses of segment lobes. D. Pinnae showing basal pinnules reduced. E. Rhizome glabrous and rugged, with abundant lateral and ventral roots, and petioles with petiolar buds, bearing roots at the base. F. Spore with MEB, polar distal view. Ornamentation verrucate, with smooth verrucae and narrow ridges. G–I. Spores with MO in polar distal view (G), ecuatorial view (H) and polar proximal view (I). The spores are brown and the verrucae are evident. Scale bars: B, D y E = 2 cm; C = 1 cm; G = 5µm; F–I = 10 µm. B–E from Yañez & Marquez 104 (LP), F–I from Yañez & García 99 (LP).
FIGURE 1. Dennstaedtia cicutaria. A in The genus Dennstaedtia Bernh. (Dennstaedtiaceae) in Argentina
FIGURE 1. Dennstaedtia cicutaria. A. Geographical distribution of the species in Argentina (● = location of the studied populations). B. Rhizome unbranched, pubescent and petioles with petiolar buds, bearing roots at the base. C. Pinnule linearlanceolate, petiolate. D. Segments of basal pinnula, pinnatisect, oblog-lanceolated, showing sori born in sinuses. E. Detail of pinna showing costule pubescent abaxially, without perpendicular herbaceous wings on the upper surface. F. Spore with MEB, polar proximal view. Ornamentation verrucate, the verrucae uniform, rounded, ornamented with rodlets. G–I. Spores with MO in polar proximal view (G), polar distal view (H) and ecuatorial view (I). The spores are dark-brown and the verrucae are evident. Scale bars: B and E = 2 cm; C = 3 cm; D = 1 cm; F–I = 10 µm. B–I from Rodriguez et al. 694 (LP).
FIGURE 3. Dennstaedtia glauca. A in The genus Dennstaedtia Bernh. (Dennstaedtiaceae) in Argentina
FIGURE 3. Dennstaedtia glauca. A. Geographical distribution of the species in Argentina (x = location of the studied populations). B. Rhizome pubescent and pecioles without petiolar buds. C. Pinnulae lanceolate, peciolulate. D. Detail of proximal segments that show terminal sori on lobes. E–G. Spores with MO in equatorial view (E), polar distal view (F) and polar proximal view (G). The spores are brown and ornamentation is not evident. H. Spore with SEM, polar distal view. Ornamentation verrucate-reticulate, with irregular verrucae distributed at random and irregular open reticule. Spore with SEM. Detail of ornamentation. Scale bars: B–C = 1 cm; D = 0.5 cm; E–G = 10µm. H= 10 µm. I= 2 µm. B–H from de la Sota 3054 (LP).
FIGURE 4. Dennstaedtia globulifera. A in The genus Dennstaedtia Bernh. (Dennstaedtiaceae) in Argentina
FIGURE 4. Dennstaedtia globulifera. A. Geographical distribution of the species in Argentina (■ = location of the studied populations). B. Rhizome pubescent with ventral roots and pecioles without petiolar buds. C. Pinnulae lanceate, peciolulate. D. Segments of basal pinnula showing sori borning in a sinus between lobes. E. Detail of pinna that show costule bordered on each side by an herbaceous wing. The wing on the basiscopic side decurrent onto the axis of the next order. F. Spore with MEB, polar distal view. Ornamentation verrucate-lomate, with broad ridges fused in reticles. G–I. Spores with MO in polar distal view (G), polar proximal view (H) and ecuatorial view (I). The spores are brown and the reticles are evident. Scale bars: B y C = 2 cm; D = 1 cm; E = 0.5 cm; F = 5µm; G–I = 10µm. B–I from Yañez & Marquez 86 (LP).
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