r perpendicular ranks.

_Tristigmatic_, or _Tristigmatose_, having three stigmas.

_Trisulcate_, three-grooved.

_Triternate_, three times ternate, 59.

_Trivial Name_, the specific name.

_Trochlear_, pulley-shaped.

_Trumpet-shaped_, tubular; enlarged at or towards the summit.

_Truncate_, as if cut off at the top.

_Trunk_, the main stem or general body of a stem or tree.

_Tube_ (of corolla, &c.), 89.

_Tuber_, a thickened portion of a subterranean stem or branch, provided
with eyes (buds) on the sides, 44.

_Tubercle_, a small excrescence.

_Tubercled_, or _Tuberculate_, bearing excrescences or pimples.

_Tubaeform_, trumpet-shaped.

_Tuberous_, resembling a tuber. _Tuberiferous_, bearing tubers.

_Tubular_, hollow and of an elongated form; hollowed like a pipe, 91.

_Tubuliflorous_, bearing only tubular flowers.

_Tunicate_, coated; invested with layers, as an onion, 46.

_Turbinate_, top-shaped.

_Turio_ (plural _turiones_), strong young shoots or suckers springing
out of the ground; as Asparagus-shoots.

_Turnip-shaped_, broader than high, abruptly narrowed below, 35.

_Twining_, ascending by coiling round a support, 39.

_Type_, the ideal pattern, 10.

_Typical_, well exemplifying the characteristics of a species, genus,
&c.

_Uliginose_, growing in swamps.

_Umbel_, the umbrella-like form of inflorescence, 74.

_Umbellate_, in umbels. _Umbelliferous_, bearing umbels.

_Umbellet_ (_umbellula_), a secondary or partial umbel, 76.

_Umbilicate_, depressed in the centre, like the ends of an apple; with a
navel.

_Umbonate_, bossed; furnished with a low, rounded projection like a boss
(_umbo_).

_Umbraculiform_, umbrella-shaped.

_Unarmed_, destitute of spines, prickles, and the like.

_Uncial_, an inch (_uncia_) in length.

_Uncinate_, or _Uncate_, hook-shaped; hooked over at the end.

_Under-shrub_, partially shrubby, or a very low shrub.

_Undulate_ or _Undate_, wavy, or wavy-margined, 55.

_Unequally pinnate_, pinnate with an odd number of leaflets, 65.

_Unguiculate_, furnished with a claw (_unguis_), 91.

_Uni-_, in compound words, one; as _Unicellular_, one-celled.

_Uniflorous_, one-flowered.

_Unifoliate_, one-leaved. _Unifoliolate_, of one leaflet, 59.

_Unijugate_, of one pair.

_Unilabiate_, one-lipped.

_Unilateral_, one-sided.

_Unilocular_, one-celled.

_Uniovulate_, having only one ovule.

_Uniserial_, in one horizontal row.

_Unisexual_