GLOSSARY. 



LV 



Thallophytes: flowerless plants, consist-! divided ternately,and each final branch 

 ing wholly of Thallus, or cellular leaf-) bears 3 leaflets, 

 like expansion : sometimes branched Truncate; as if cut off transversely. 



and fruticulose. 

 Thallus : a name for the stemless frond- 

 like expansion, of which many cryp- 



togamous plants are entirely compos 

 ed : in the Lichens it is often terete, 

 branched and shrub-like. 

 Theca (plural, thecae); a name for the 

 spore-case of the Mosses. 



Tube ; the united portion of a calyx, or 



corolla; a hollow cylinder. 

 Tuber; a thickened fleshy rhizoma, or 



knob-like termination of a subterra- 

 nean branch. 

 Tubercle ; a small excrescence, knob, or 



rough point, on a surface. 

 Tuberculate; covered with tubercles. 

 Thorn; a sharp process from the wood! Tuberiferous ; bearing or producing tu- 



of a plant, being an abortive branch, bers. 



Throat; the orifice or passage into the Tuberous; consisting of, or fleshy and solid 

 tube of a gamopetalous corolla. 



Thyrsoid; nearly in the form of a thyrsus 

 Thyrsus ; a kind of contracted or dense 



ovoid panicle. 

 Tissue ; web, or fabric ; the intimate or 



ganic structure of bodies. 



matted, short pubescence. 



Tomentum ; a matted, or curled, wool- 

 like short pubescence. 



Torose, or torulose ; swelled out in obtuse 

 ridges. 



Tortuous : bent in different directions. 



like tubers. 

 Tubular ; having a tube, or formed like 



a tube. 

 Tuft ; a bunch or fascicle, growing from 



the same root, or originating nearly at 



the same point. 



Tomentose; covered with a curled, or Tumid ; swelled, or enlarged like a swel- 



Torus ; the seat, or receptacle, of the 

 component parts of a flower / the ex- 

 tremity of a pedicel. 



Translucent ; clear, or transmitting lighl 

 faintly. 



Transverse, or transversely; cross-wise; 

 at right angles with lengthwise. 



Tree, ; a woody plant taller than a shrub, 



Triadelphous : having the filaments unit- 

 ed in 3 parcels. 



Triandrous ; having 3 stamens. 



Tribes; groups of kindred plants, inter- 

 mediate between Orders and Genera. 



Tribracteate : having 3 bracts. 



Trichotomous ; 3-forked; dividing by 3 

 equal branches. 



Tricoccous ; composed of 3 separable in 

 dehiscent carpels (cocci). 



Tricuspidate ; having, or terminating in, 

 3 rigid sharp points. 



Trifarious ; facing or pointing in 3 di 

 rections. 



Trifid; 3-cleft. 



Trifoliate ; 3 leaves together. 



Trifoliolate ; 3 leaflets together. 



Trigonous: 3-cornered. 



Trigynous ; having 3 pistils. 



Trilobate; 3-lobed. 



Trimerous; consisting of 3 parts. 



Tripartite; 3 parted. 



Tripetalous ; having 3 petals. 



Tripinnate ; thrice pinnate ; the common 

 petiole 3 times divided, or with bipin- 



ling. 

 Tunicated ; coated; having concentric 



coats, or layers. 



Turbinate; top-shaped; resembling an, 

 I inverted cone. 

 Turf; the green sward, or grassy eod. 



ate divisions on each side. 

 Tripinnatiftd ; pinnately dissected, 



rith 



the primary divisions twice pinnatifid 

 THplinerved ; having 3 principal nerves 



from the base. 

 Triquetrous; having 3 sharp angles, and 



3 flat or concave sides. 

 Trisepalous ; having 3 sepals. 

 TriUrnate leaf ; when the petiole ia twice 



Turgid ; swelled, but not inflated. 



Tunon: & thick tender young radical 

 shoot of a plant. as of Asparagus, Ac. 



Tussock; a dense tuft, formed at the 

 root, as in some species of Carex, Ac. 



Twin ; two of the same kind connected, 

 or growing together. 



Twining ; winding round and ascending 

 spirally. 



Type; a model, or form; a pattern in- 

 dividual which unites in itself most 

 completely the characters of a group. 



Umbel ; a kind of inflorescence, in which 

 the flowerstalks proceed from a com- 

 mon centre, like the rays or braces of 

 an umbrella. 



Umbellate ; in the form or manner of an 

 umbel. 



UinbeUet ; a partial umbel ; one of the 

 subdivisions of a compound umbel. 



Umbelliferous ; bearing the flowers in 

 umbels. 



Umbilicate ; navel-like ; having a central 

 pit, or depression. 



Umbonate ; protuberant; having a boss, 

 or elevated point, in the centre. 



Unarmed; without thorns, or prickles. 



Uncinate ; hooked at the end. 



Undulate; wavy; curved, or rising and 

 depressed, like waves. 



Unequal ; not alike in length, size, nor 

 duration. 



Unguiculaie; clawed; having a slender 

 base, like a claw. 



Uniform, or uniformly ; in one form ; 

 equally and alike. 



Unilateral; one-sided; growing or situ- 

 ated all on one side of a stem, or rachip. 



Unisexual ; staminate, or pistillate, only. 



T Jrceolate ; pitcher- shaped, or urnshaped ; 

 swelling below, and contracted to a 

 neck, above. 



