Vase-shaped 



A DICTIONARY 



Velutinous 



VASE'-SHAPED, shaped some- 

 what like a common flower- 

 pot. (Rare.) 



VAS'iFORM, having the character 

 of ducts or vessels. 



VAS'lFdRM WOOD-CELLg, see 

 Tracheids. 



VAULTED, overarched, as the 

 upper lip of many riugeut 

 flowers; fornicate. 



VEGETABLE, (1) any plant; 

 (2) in horticulture applied to 

 plants cultivated for some edi- 

 ble part besides the fruit, and 

 also to some, as the melon 

 family, in which the part used 

 is properly a fruit. 



VEGETABLE AnAT'OMY, see 

 Structural Botany. 



VEGETABLE NOS6L'o6y, the 

 department of vegetable pa- 

 thology which treats of the 

 diagnosis or classification of 

 the diseases of plants. 



VEGETABLE PATH&L'OGY, the 

 science which treats of the 

 diseases of plants. It includes 

 the study of disease-producing 

 parasites and of the means for 

 preventing their injuries. It 

 does not include Teratology. 



VEGETABLE PHYSI&L'OGY, see 

 Physiological Botany. 



VEGETABLE TAX&N'OMY, the 

 part of systematic botany 

 which relates to the classifi- 

 cation of plants. 



VEGETABLE WAX, a wax-like 

 substance upon many leaves 

 and fruits, an important func- 

 tion of which is to protect the 

 parts from excessive moisture. 

 See Bloom. 



VEGETATION, (1) germination 

 and growth; (2) plauts in gen- 

 eral. 



VEGETATIVE AP&G AMY, the 

 apogamous production of 

 growing shoots in place of 



seeds or spores. See Apog- 



AMY. 



VEGETATIVE §£LL, a cell in 

 a pollen-grain which does not 

 develop into the pollen-tube. 

 Compare Generative Cell. 



VEGETATIVE NU'CLEUS, any 

 nucleus in a pollen-tube which 

 takes no direct part in fertili- 

 zation. Compare Genera- 

 tive Nucleus. 



VEIL, (1) a membrane connect- 

 ing the margin of the cap in 

 mushrooms with the stalk; 

 velum; (2) the calyptra in 

 mosses. 



VEIN, a small bundle of fibro- 

 vascular tissue within a leaf. 

 When large, and occupying a 

 prominent ridge, it is called 

 rib; when very small it is 

 sometimes called nerve, espe- 

 cially in monocotyledons; but 

 the term Nerve is now little 

 used. 



VEIN'LET, a small, secondary 

 vein; veinule. 



VEIN'ULET, a branch of a vein- 

 let. (Rare.) 



VELA'MEN, an envelope of sev- 

 eral layers of cells containing 

 air, surrounding the aerial 

 roots of orchids and Aroideae. 



VE'LATE, furnished with a veil; 

 veiled. 



VE'LUM, the membranous iudu- 

 sium in Isoetes. Formerly ap- 

 plied to the veil of mushrooms. 



VE'LUM PARTIA LE, see Mar- 

 ginal Veil. 



VE'LUM UNIVERSALE, see 



VOLVA. 



VELtJ TINOUS, covered with a 

 close, silky coat of short, fine, 

 erect hairs of even length; 

 velvety. 



VfiL'VETY, see Velutinous. 



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