bladdery 
polled 
membranous pericarp, as in Phy- 
salis; ~ Plums, an abortion of the 
fruit of plums, the stone being 
wanting, and a thin bladder repre- 
senting the rest of the fruit ; 
blad’dery, thin and inflated. 
Blade, the limb or expanded portion 
of a leaf. 
blanched, (1) the whitened appearance 
of leaf or stem from the want of 
iron; (2) artificially produced by 
exclusion of light, the green chloro- 
phyll pigment not being developed 
in either case. 
Blaste’ma (SA\dorypa, « sprout), (1) 
originally the axis of an embryo, 
the radicle and plumule, excluding 
the cotyledons; (2) ¢ the Lichen- 
thallus; blaste’mal, rudimentary ; 
plastemat’icus, thalloid ; Blaste’sis, 
the reproduction of the thallus of 
Lichens by gonidia (Minks). 
Blastid’ia (8Aacros, shoot), Schleiden’s 
term for secondary cells generated 
in the interior of another cell, 
daughter cells ; Blast’idules, 
M‘Nab’s expression for all repro- 
ductive bodies which are not spores, 
but produced asexually, as gemmae, 
propagula, etc. ; blastocarp’ous 
(kapros, fruit), applied to those 
fruits which germinate within the 
pericarp ; Blastocol'la (xo\Aa, glue), 
the balsam which is produced on 
buds by glandular hairs (Han- 
stein); Blastogen’esis (yéveous, be- 
ginning), M‘Nab used this for all 
methods of asexual reproduction 
which are not due to Sporogenesis ; 
Blastograph’ia (ypa¢w, I write), the 
study of buds (Du Petit Thouars) ; 
Blastomyce’tes (uvxys, fungus), a 
synonym of Saccharomycetes, the 
yeast fungus, etc.; Blast’ophore, 
Blastoph’orus t (popéw, I carry), the 
vitellus, the sac of the amnios ina 
thickened scale, forming a case in 
which the embryo lies; Blast’us ¢ 
the plumule. 
Blind, a cultivator’s expression for 
abortion, as when a flower-bud is 
said to go blind, that is, does not 
develop. 
35 
Blea, pr. blee; the liber or inner 
bark. 
Bleb, Hill’s term for a pith-cell. 
Bleed’ing, applied to an extravasation 
of sap, such as occurs in vines if 
injured in spring during leaf ex- 
pansion. 
Blendl’‘ing, a hybrid between races, 
not species. 
Bleph'arae, pl. (BAé¢apov, an eyelash), 
the teeth belonging to the peristome 
of a Moss ; Bleph’aroplast (7\aords, 
moulded), the specialised proto- 
plasm which gives rise to the motile 
cilia of the antherozoids as in Zamia 
and Cycas ; Blepharoplast’oids («ldos, 
resemblance), in nuclear division, 
two bodies appearing between the 
2- and 4-celled stage at each pole of 
the two spindles, disappearing into 
the cytoplasm before the rise of the 
blepharoplasts themselves (Shaw). 
Blet, a soft spot on fruit; Blet’ting, 
the change in consistence without 
putrefaction, of certain fruits, as 
the medlar. 
Blight, popularly applied to an epi- 
demic, either of minute Fungi, or of 
aphides. 
Bloom, (1) synonymous with BLossom ; 
(2) the white waxy or pruinose 
covering on many fruits and 
leaves. 
Blos’som, the flower, especially of fruit 
trees; ~ Bud,=Flower-bud. 
blotch’ed, colour irregularly disposed 
in patches. 
blunt, ending in a rounded form, 
neither tapering to a point, nor 
abruptly cut off. 
boat-shaped, having the figure of a 
boat, with or without a keel. 
bola’ris (Mod. Lat.), dark red, brick- 
coloured ; from the earth, Ar- 
menian Bole. 
Bole, the main trunk of a tree, with 
a distinct stem. 
bolet‘ic, obtained from the genus 
Boletus, as boletic acid. 
Boll, pr. boal, the fruit capsule or 
pericarp, especially of the cotton 
plant ; Bolling, pr. boal’ing,= 
OLLARD ; bolled, pr. boald, come 
