retuse


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retuse

[rə′tüs]
(botany)
Having a rounded apex with a slight, central notch.
References in periodicals archive ?
Leaves widely and horizontally spreading, subimbricate, plane, dorsal margin flat or slighgtly recurved, ovate-oblong, 1.2-1.4x longer than wide, apex rounded to truncate to retuse, without teeth or with a rudimentary tooth, margins fully entire; dorsal and ventral bases rather longly decurrent, ventral base subampliate, with a low shoulder.
Bunchosia soejartoi is also distinguished by its rounded, often retuse leaf apices, few leaf glands, often sinuous abaxial leaf hairs, and stipules borne well above the base of the petiole.
LEAVES Commonly both retuse at Never retuse, apices apex and nearly as broad acute, emarginate, or broader than long in usually obtuse or obovate, elliptic or rounded; usually much ovate series, mature longer than broad.
Retuse?" Ultimately, Silano suggests, we come to know the flower via the language used to name its parts, and in that knowing we come to wonder about and know ourselves: "Are we stellate (star--like, spreading / like the rays of a star)?
* Retuse: retuse has a smooth-flowing, shallow indentation at the tip.
1 Leon Trotsky; austere; duet; durst; duster; ensure; etude; reuse; reused; retuse; rude; ruder; rudest;2 Ray Galton and Alan Simpson;
In seedling there are two simple eophylls, opposite or under-opposite, green, petiolate, oblong to lanceolate, retuse apex, rounded or acute, obtuse to cuneate base, and simple craspedodromous venation (Figure 2A).
Lip fused to the column base, 16-20 x 17-20 mm, ovate-quadrate to subrhombic when extended, retuse, undulated along the margins, the lateral margins upright forming a trumpet which embraces the column, multi-veined; callus formed by two short and parallel keels; spur formed by the lip base, prominent, sigmoid, 4050 mm long.
The dehiscent 2-winged fruit is nearly elliptical, with retuse apical margin.
Petals narrowly lanceolate, rounded and retuse at the apex, 18-20 mm long, each with a pair of basal appendages, cream tipped with white.
Lip three-lobed, (12)15-17 mm long, when spread (14)17-20 mm wide between the apex of the side lobes; base unguiculate, 2-3 mm long, white; lateral lobes erect, parallel, slightly falcate, oblong, 5- 7 x (2.5)3-3.5(4) mm, base little or not constricted, margins entire, pinkish; callus verrucose, extending from the base of the central lobe to the region between the lateral lobes, white; isthmus separating the lateral lobes from the central lobe usually evident, (1)2-3 mm long; central lobe, transversally broadly ovate, (6)9-11 x (9)11-13 mm, apex with a protruding fold, when flattened discreetly retuse, margins smooth, pinkish with the margins whitened, the pink becoming white with aging.