flabelliform การใช้

The genus was segregated on the basis of the flabelliform ( fan-shaped ) laminae.
Trophophore is sessile or nearly so; stalk 0 10 mm, 0-0.4 in, a tenth to a half the length of trophophore rachis; blade is dull, strongly glaucous, whitish green, deltate ( triangular ), thickly leathery, twice pinnate, with apex bent down in vernation, 2 4 cm, 1-1?in, long and 1?4 cm, ?1?in, broad; ternate, the middle division the largest, broadly oblong to rounded-deltoid, the lateral ones similar or rhombic-oblong, all pinnately parted; pinnae closely imbricate ( overlapping ), up to 6 pairs, strongly ascending, sublunate to flabelliform, broadly crenate to incised, or the larger ones radially cleft into cuneiform lobes; distance between 1st and 2nd pinnae not or slightly more than between the 2nd and 3rd pairs, asymmetrically cuneate; basal pinna pair often divided into 2 unequal parts, lobed to tip, margins entire, sinuate to shallowly crenate, apex rounded to truncate, venation pinnate.