TABLE 1. Morphological comparison among Polystichum kuankuoshuiense, P. bifidum, P. auriculum and P in Polystichum kuankuoshuiense (sect. Sphaenopolystichum, Dryopteridaceae), a new fern from Guizhou, China

TABLE 1. Morphological comparison among Polystichum kuankuoshuiense, P. bifidum, P. auriculum and P. suiyangense.
CharactersP. kuankuoshuienseP. bifidumP. auriculumP. suiyangenseRhizome3–5 cm long, ca.3 cm in diam. including stipe bases, with proliferous bulbils<2.5 cm long, ca. 2 cm in diam. including stipe bases, with few proliferous bulbils<2.5 cm long, ca. 2 cm in diam. including stipe bases, with few proliferous bulbils<2 cm long, <1.5 cm in diam. including stipe bases, with few proliferous bulbilsLaminapapery, light greenpapery, greenthinly papery, greenleathery, dark greenPetiole scalesbicolor, thickly membranous, margins shortly serratebicolor, thickly membranous, finely toothedbrown to dark brown or castaneous, thickly membranous, entirebrown to bicolor, thickly membranous, margins shortly fimbriate or only with short teethPinnae18–30 pairs, alternate, acuminate, pinnatipartite, length to width 4, lobes 6–8 pairs, 15 lobes per pinna, 1 free lobe per pinna18–40 pairs, approximate, acute, pinnatilobate to pinnatifid, length to width 4, lobes 6–8 pairs, 15 lobes per pinna, few free lobes30–45 pairs, alternate or nearly opposite, acuminate, pinnatilobate to pinnatisect, length to width <3, 13 lobes per pinna, 1 free lobe per pinna12–22 pairs, alternate, pinnatipartite, length to width 2, 4–6 lobes per pinna, 1 free lobe per pinnaSorislightly closer to pinna margin than to costaslightly closer to pinna margin than to costaclose to pinna marginnearly medial