situated at an apex

At or belonging to an apex, tip, or summit.

Relating to or situated at or near the apex of any structure.

Belonging to the apex.

Relating to the top.

At the tip or summit, cell at tip of a growing point; aboral plates of Echinoderms.

On each side of the frenum, under the mucous membrane of the tip, are mucous glands- apical glands- in which cysts sometimes form. – Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition. by Alexander Miles Alexis Thomson

Capillitium originating from the lower surface of the apical disk of the columella; the threads branched a few times and hanging downward, their extremities free. – The Myxomycetes of the Miami Valley, Ohio by A. P. Morgan

In H. cribratostriatus the male has a similar rasp, excepting that it is not partially divided into two portions, and the female is completely destitute of this organ; but in addition the male has on the apical margins of the elytra, on each side of the suture, three or four short longitudinal ridges, which are crossed by extremely fine ribs, parallel to and resembling those on the abdominal rasp; whether these ridges serve as an independent rasp, or as a scraper for the abdominal rasp, I could not decide: the female exhibits no trace of this latter structure. – The Descent of Man and Selection in Relation to Sex, Vol. I (1st edition) by Charles Darwin

These rings of the tail are narrow, with large intervals, diminishing towards its tip, as the interstices of the dorsal bars do towards the base of the tail; the black caudal rings are perfect, save the two basal, which are deficient below, whilst the two apical on the contrary are rather wider below and nearly or quite connected there. – Natural History of the Mammalia of India and Ceylon by Robert A. Sterndale

General color white with a narrow black margin around apical angle of front wings. – Butterflies Worth Knowing by Clarence M. Weed

The upper surface of the head, as far back as to include the ears, orange red; under parts and inside of limbs more or less chestnut; under surface of neck orange yellow, with a centre line of the same on the chest; tail variable- in the young it has seven alternate orange and black bands, the orange being terminal; but the adults have sometimes only five bands, the apical one so broad as to make a rich orange tail with yellowish- white tipped hair. – Natural History of the Mammalia of India and Ceylon by Robert A. Sterndale

They are all paler than the surrounding hairs, and the individual hairs are either broadly tipped with yellowish- white, or they have a broad sub- apical band of that colour. – Natural History of the Mammalia of India and Ceylon by Robert A. Sterndale

The female of this species brought by Captain Grey has the upper wings more developed; the three interrupted whitish bands are composed, at least the two outer, of three spots, larger than in the female; the little bluish white spots on the deep brown part of the under side of the lower wing are also nearly obsolete; the sides of the body are not fringed as in the male; and the apical tuft is very small indeed. – Journals Of Two Expeditions Of Discovery In North-West And Western Australia, Vol. 2 (of 2) by George Grey