Vvegetive 
Venulas 
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” = 
Gonipi4; ~ 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) Vetum; (2) Catyprra 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; 
velamina’ris, when an anther de- 
hisces by rolling up one side of a 
cell from base to apex; ve’'late, 
vela‘tus (Lat.), veiled. 
Vel'lus (Lat., a fleece), the stipe of 
some Fungi. 
Ve'lum (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 Jsoétes 
(A. Braun); ~ partia’le, marginal 
veil; ~ universa’le = VOLVA. 
Velu’men (Lat., a fleece), close, short, 
soft hairs, 
velu'tinous, velu'tinus, velutino'sus 
(Mod. Lat.), velvety, due to a 
coating of fine soft hairs ; vel’vety, 
an equivalent of the same. 
Ve'na (Lat., a vein), « 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. 
venenif‘erous (venenifer, containing 
poison), bearing poison. 
ven’enose, veneno’sus (Lat.), 
poisonous. 
ve'nose, veno’sus (Lat., 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 ; 
ven'tricose,ventrico’sus, ven tricous, 
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, pl. of Ve’nula (Lat., a small 
very 
286 
