APPENDIX. 1119 
Tuss. (1.) Any hollow elongated body or part of an organ. (2.) The lower united 
portion of a gamopetalous corolla or calyx. 
Tuser. A short and thick subterranean branch or rhizome, furnished with scattered 
buds or “‘ eyes,” from which new shoots can arise. 
TuBERCLE. A small projection or wart-like excrescence. 
TUBERCULATE. Covered with small warts or excrescences. 
TusERous. Resembling a tuber. 
TopuLAR. 'Tube-shaped ; cylindrical and hollow. 
Tumip. Swollen or inflated. 
TunICcATE. Having several concentric coats or tunics, like an onion. 
TuRBINATE. ‘Top-shaped. 
Tureip. Swollen or distended. 
Twining. Climbing by twining or winding round a support. 
Typr. The ideal representative of a species or other division. 
TypE-SPECIMEN. ‘The original specimen from which a description of a particular species 
was drawn up. 
TypicaL. That which corresponds with or represents the type. 
Umset. An inflorescence in which several pedicels of about the same length radiate 
from the top of a common peduncle. An umbel is said to be simple when each 
of its pedicels or rays ends in a single flower; compound when each ray bears a 
secondary umbel. 
UmBELuatTe. Having the inflorescence arranged in umbels. 
UMBELLULE. A secondary umbel. 
UmpBinicaTr. Having a depression in the centre ; navel-like. 
Umponate. Bearing a convex projection or boss. 
Unornate. Hooked at the extremity. 
UnpuLate. Wavy; having a waved or sinuous margin. 
Uneuicutats. Applied to a petal which is narrowed at the base into a claw. 
UNILATERAL. One-sided. 
UniLocuLtaR. One-celled. 
UnIsERIATE. Arranged in a single horizontal row or series. 
UnIsExuat. Of one sex; applied to flowers having stamens only or pistils only. 
Urncrotatr. Urn-shaped; contracted at the mouth like an urn or pitcher. 
Urricuz. (1.) A seed-vessel consisting of a thin loose pericarp enclosing a single seed, 
as in Chenopodium. (2.) A membranous sac enclosing the fruit proper in Carex 
and Uncinia. (3.) Any bladder-shaped appendage. 
Vaqina. <A sheath, as of a leaf. 
VaGInaTe. Sheathed. 
VALLECULE. A term applied to the grooves between the ribs of the fruit in Umbelliferae. 
VatvaTs. (1.) Opening by valves, as in the majority of dehiscent fruits and many 
anthers. (2.) In aestivation, applied when the parts of a flower-bud meet exactly 
at their edges without overlapping. 
Vatve. One of the divisions into which a capsule or other dehiscent fruit separates 
at maturity ; the door-like lid by which many anthers open. 
VARIEGATED. Irregularly coloured in patches or blotches. 
Variety. A subdivision of a species, differing from the type in certain constant 
characters of subordinate value. 
Vern. A strand of vascular tissue traversing a leaf or any other flat organ. 
VEINED. Furnished with veins. 
VEINLESS. Destitute of evident veins. 
VEINLET. A small vein, or the ultimate branch of a vein. 
Venation. The manner in which the veins of leaves are arranged. 
VENTRAL. The anterior or inner face of a carpel, &c.; the opposite of “ dorsal.”’ 
VentRICOSE. Swelling or inflated on one side. 
VERNICOSE. Shiny, as if varnished. 
VeERRUCOSE. Covered with wart-like projections. 
VERSATILE. Swinging freely on its support, as many anthers on their filaments. 
VerticaL, Upright; perpendicular to the plane of the horizon. 
