Vernation lines parallel to the midvein are often visible-a very unusual characteristic.
2.
Left on the plant, each fiddlehead would unroll into a new frond ( circinate vernation ).
3.
The fronds of tree ferns also exhibit circinate vernation, meaning the young fronds emerge in coils that uncurl as they grow.
4.
The first " Cryptocoryne " species was described in 1779 as " Arum spirale " by involute vernation.
5.
As the number of recognised species increased various attempts were made to divide the species into subgroups, usually on the basis of the pattern of the emerging leaves ( vernation ).
6.
"Drosophyllum lusitanicum " is native to the western Mediterranean region ( Portugal, Spain and Morocco ), and is one of the few carnivorous plants to grow in dry, sundews, but have the unusual characteristic of coiling'outward'when immature ( outward circinate vernation ).
7.
""'Drosera filiformis " "', commonly known as the "'thread-leaved sundew "', is a small, sundew, it is unusual within its genus in that the long, erect, filiform ( thread-like ) leaves of this plant unroll in spirals an arrangement similar to the circinate vernation seen in ferns.
8.
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.
परिभाषा
(botany) the arrangement of young leaves in a leaf bud before it opens
मोबाइल