Morphological characteristics Herbs perennial, plant height 15-40 cm. Ye Yuansheng or a recent student, the dichotomous bifurcation of the veins of the bifurcation, reaches the edge, and both sides are obvious. After the leaves dry thin grassy, ​​green or brown green grass, both sides are hairless; leaf axis, the back of the feather shaft and the small stalk are the same color with the petiole, often slightly twisted to the right and left. The veins diverged again and again, reaching the edge, and both sides were obvious. After the leaves dry thin grassy, ​​green or brown green grass, both sides are hairless; leaf axis, the back of the feather shaft and the small stalk are the same color with the petiole, often slightly twisted to the right and left. Rhizomes slenderly traversed, densely lanceolate. Stems 5-20 cm long, ca. 1 mm thick, slender, chestnut black, shiny, base squamous with the same scales on rhizomes, smooth upward, leaf ovate-triangular, 10-25 cm long, 8-16 cm wide , pointed, base cuneate, mostly bipinnate below middle, oddly pinnate above middle; pinnate 3-5 pairs, alternate, obliquely upward, stalked (1.5 cm long), base paired Larger, 4.5-9 cm long, 2.5-4 cm wide, oblong oval, round blunt, one back (less two backs) odd-pinnate, 2-4 pairs of laterally lasting pinnacles, alternate, obliquely upward , 6-15 mm apart, equal in size or slightly larger at the base, symmetrical or asymmetrical oblique fan or near-oblique, 1.2-2 cm long, 1-1.5 cm wide, rounded at the top, with 2-4 Lobed or lobed into lobes, sterile lobes obtuse at apex, broadly triangular serrate or dentate denticulate, fertile lobes apically truncate, straight or slightly depressed, entire or entire Eccentric denticles on lateral sides, entire margins on both sides, wide wedge-shaped taper at base, slender black chestnut short handles (1-2 mm long), terminal pinnae Shape, base is narrow wedge, often larger than the lateral pinnae below, shank up to 1 cm; second pair of pinnacles 2.5-5 cm from base, each pair up and base pair of plumes homomorphous and gradual small. The sporangia of 3-10 spores per stalk are transverse to the upper edge of the last culutre of the fertile sinus. The sac covers a long shape, a long kidney forms a round kidney shape, the upper edge is straight, yellowish green, and brown when old. Membrane, entire, persistent. Spores have a coarse grained pattern on the perimeter wall and are often preserved after processing. Comparison Microscope,The Comparison Microscope,Comparative Microscope,A Comparison Microscope Ningbo ProWay Optics & Electronics Co., Ltd. , https://www.proway-microtech.com