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).