Vegetive 



tube ; (2) in Selaginella, a portion 

 of the apical end of the microspore 

 cut off by a septum on germination ; 

 "* Cone, the apex of the shoot, a 

 conical protuberance ; ~ Nu'cleus, 

 any pollen-tube nucleus which does 

 not take an active part in fertiliza- 

 tion ; ~ Or'gans, those concerned 

 with the growth of the plant, not 

 the reproduction ; ~ prop'agative 

 Cells, in German "Brutzellen" = 

 GONIDIA ; ~ Reproduc'tion, asexual 

 increase, as by detached buds, 

 gemmae, bulbils, etc. ; veg'etive, 

 having the nature of plants. 



Vehic'ulum (Lat., a conveyance), 

 Necker's term for the stigmatic 

 secretion. 



Veil, = (1) VELUM ; (2) CALYPTBA of 

 Mosses. 



Vein (as distinct from a NERVE), 

 a strand of vascular tissue in a 

 flat organ, as a leaf; cos'tal ~, 

 or pri'mary ~ , such as spring from 

 the midrib; exter'nal ~, a vein 

 close to the margin ; veined, fur- 

 nished with or traversed by fibro- 

 vascular bundles, especially if 

 divided or reticulated ; Vein'ing, 

 the general arrangement of the 

 veins ; vein'less, destitute of veins ; 

 Vein'let, a small vein, the ultimate 

 division of a vein ; Vein'ulet, a 

 branch of a veinlet (Crozier). 



Vela'men (Lat., a covering), or ~ 

 Radi'cum, a parchment-like sheath 

 or layer of spiral-coated air-cells 

 on the roots of some tropical 

 epiphytic Orchids and Aroids ; 

 velaminafis, when an anther de- 

 hisces by rolling up one side of a 

 cell from base to apex ; ve'late, 

 vela' tits (Lat.), veiled. 



Vel'lus (Lat., a fleece), the stipe of 

 some Fungi. 



Velum (Lat., an awning), (1) a 

 special envelope in Agarics within 

 which the growth of the sporo- 

 phore takes place ; (2) by Persoon 

 applied to the CORTINA ; (3) the 

 membranous indusium in Isoetes 

 (A. Braun) ; ~> partia'le, marginal 

 veil ; ~ universa'le = VOLVA. 



Venulae 



Velu'men (Lat., a fleece), close, short, 

 soft hairs. 



velu'tinous, velu'tinus, velutino's 

 (Mod. Lat.), velvety, due to 

 coating of fine soft hairs ; vel'vety, 

 an equivalent of the same. 



Ve'na (Lat., a vein), a vein ; Ve'nae 

 exter'nae, white veins seen in 

 some Gasteromycetes and Tuber- 

 aceae in sections of the sporophore, 

 produced by air tissue in the spori- 

 ferous chambers ; ~ inter'nae, ~ 

 lymphat'icae, dark-coloured veins, 

 in the same group of Fungi, denot- 

 ing the walls of the sporiferous 

 chambers, but destitute of air ; 

 Vena'tion, the mode of veining. 



venena'tus (Lat.), poisonous, veno- 

 mous. 



veneniferous (venenifer, containing 

 poison), bearing poison. 



ven'enose, veneno'sus (Lat.), very 

 poisonous. 



ve'nose, veno'sus(La,t., veiny), having 

 veins ; veno'so-nervo'sus when 

 the primary veins branch and unite 

 irregularly. 



Ven'ter (Lat., the belly), (1) the ex- 

 panded basal portion of an arche- 

 gonium in which the oosphere is 

 formed ; (2) by T. J. Parker applied 

 to the OVARY. 



ventilato'rius (ventilator, a winnower), 

 flabellate, fan-shaped. 



ven'tral, ventra'lis (Lat. , pertaining to 

 the belly, (1) the anterior or inner 

 face of a carpel, opposed to dorsal ; 

 (2) relating to the VENTER; ~ 

 Canal' -cell, a small cell in the arche- 

 gonium cut off from the apex of the 

 mother-cell of the oosphere next the 

 neck ; - Su'ture, the ventral seam 

 or line of dehiscence in a carpel ; 

 veritricose,ventrico'sus,veiL f tTico\L8, 

 swelling or inflated on one side, as 

 the corolla of some Labiates and 

 Scrophularineae; ventric'ulose, 

 ventriculo'sus (Lat., pertaining to 

 the belly), slightly ventricose. 



ventricum'bent (venter, belly, cum- 

 bens, lying down), face downward, 

 prone (Crozier). 



Ve'nulae, pi. of Ve'nula (Lat., a small 



286 



