2 I S 



TUBWROUS, 14. 



I'UBULOUS, TUBVtosE. That corol of a compound flower, which 

 forms a whole tube, not a ligulate floret. It is also applied to a 

 perianth, if the whole or the lower part is a hollow cylinder. 



TURBIWATE. Top-form. 



TURBID. Thickened, swollen, but not inflated. 



TwiMire. Ascending spirally. 



VALVE. The several pieces of a pericarp, which separate naturally 

 on ripening-, are called valves. Also the leaves, or chaffs, of a 

 glume Each, piece is called a valve. This name is sometimes 

 applied to the scales, which close the tube in some corols. 



VARIETY. The changes produced among 1 plants of the same species 

 by accidental causes ; as by soil, situation, culture, climate, &c. 

 These changes respect magnitude, fulmr,? of flowers, erisping of 

 leares, colour, taste and smell. If the same kind of plant can pos- 

 sibly be produced from the seed of other kinds, these are but va- 

 rieties of the same species. All apples are but varieties of the same 

 species. 



VAULTED. Arched over like the roof of the mouth. 



VEIXKD, 17. 



VBITTRICOSB. Swelling out as if blown up with wind. 



VERTICAL. Standing or hanging up and down at right angles with 

 the horizon ; or parallel to the stem. 



VESICULAR. Containing, or consisting of, a cellular substance. 



VILLOSE, villosus. Having a superficial covering of long soft whitish 

 hairs. 



VISCID. Covered superficially with a sticky juice. 



UMBEL, 13. 



UMBELLIFEROUS. Bearing umbels ; as Carrot, Diil, Fennel. 



UMBILICATE. Having a kind of central roundish hollow or protubef- 

 ance, as on the end of an apple, or of a pompion. 



UKARMED. Having no thorns nor prickles. 



URDU LATE. Wavy. 



UNEQ.UAL. The parts not corresponding in size, form and duration* 



VOLVA, 10. 



URCEOLATE. Swelling out like a pitcher, and not contracting much 

 at top. 



URN-FORM. Swelling in the middle and contracting at the top ; as 

 the calyx of the Rose. 



UTRICLES. The little bag-like reservoirs for sap. 



UTRICULTTS. A little bladder. 



WEDGE-FORM. Obovate with straitish sides. 



WHEEL-FORM, 10. 



WHORLED- Surrounding the stem in numbers at intervals ; as the 

 leaves of Bedstraw, and the flowers of Motherwort. 



WIWGS. The two side petals in a papilionaceous corol. 



WITHERING. Having a shrivelled and decaying appearance, though 

 not actually in a state of de,cay ; as the flowers of elm. 



WOOD, 14. 



ZIGZAG. See flexuose. 



