univalved 
utriform 
those Phanerogams which possess 
only one covering to their ovules ; 
wnhivalved, wnival’vis, unival’vular 
(valva, a door-leaf), of one valve or 
piece, dehiscing by one valve. 
univer’sal, wniversa’lis (Lat., pertain- 
ing to the whole), general, as ~ 
Involu’cre, a general involucre; ~ 
Um’bel, a general or compound 
umbel. 
univesicula’ris (uni = one + VESICU- 
LAR) = UNICULLULAR. 
uni’onized (wn =not, + Ion), when the 
molecules are undivided (J. F. 
Clark); Unli‘ning (+ line), the 
separation of parts originally 
united; chorisis; adj. unlined’ 
(Lindley); unor’ganised (+ Or- 
GAN), without structure or organs ; 
~ Fer’ment= ENZYME; unsep’tate 
+ SEPTATE), applied to a plant 
which has not partitioning divi- 
sions, as plasmodia or certain uni- 
cellular Fungi and Algae; ~ 
Fibres, libriform cells ; unstrat’i- 
fied (stratum, a layer), used of 
those Lichens which do not show 
distinct layers of hyphae and 
gonidia ; unsymmet’rical (+ Sym- 
METRY), irregular. 
Uo'voli, pl. of Jo’volo (Ital.), gnaurs 
of the olive-trees, used for pro- 
pagation. 
urceolar, ur’ceolate, wurceola’tus 
(urceolaris, relating to pitchers), 
pitcher-like, hollow and contracted 
at the mouth like an urn or pitcher; 
Ur’ceolus (Lat.), (1) a pitcher- 
shaped organ, as an ascidium ; (2) 
the two confluent bracts of Carex, 
the utricle ; (3) any flask-shaped 
anomalous organ. 
Uredino’sis (Uredo, a blight, from 
uwro, I burn), disease produced by 
“Rust” Fungi; Ure'do, a form 
genus, the hymenium producing 
uredospores exclusively; adj. 
uredin'ial, uredin’eous, ure’dinous ; 
Ure’do-conid’‘ium ( + Conrprum)= 
Urneposeorze;  Ure’do-fruit, a 
group of Uredospores ; Uredo- 
gonid’ium (+ Gon1pIuM) = UREDo- 
SPORE ; Ure’dospore (c7opa., a seed), 
a spore formed by acrogenous ab- 
junction from a sterigma, germin- 
ating immediately and producing 
a mycelium which bears other 
uredospores alone, or with teleuto- 
spores ; uredosporiferous (fero, I 
bear), bearing uredospores ; Ure’do- 
stage, the summer stage of Uredi- 
neae, when uredospores only are 
produced. 
wrens (Lat., burning), stinging, as 
nettles. 
Urn, Ur'na (Lat., » water-pot), (1) 
the capsule of a Moss; (2) the 
base of a pyxidium; urn-shaped, 
urceolate. 
urtica’ceous (urtica,a nettle, + aceous), 
pertaining to the order Urticaceae, 
of which the nettle is the type. 
usta’lis (Mod. Lat., from wustus, 
burnt), charred, brownish black ; 
Ust’erophyte (¢vrov, a plant), 
Berkeley’s name for one of the 
Ustilagineous Fungi; ustula’tus 
(Lat.), scorched, with the appear- 
ance of being charred ; Ustilagin- 
o’sis, disease caused by Ustilago, 
a genus of Fungi which produces 
“Smut” in corn, the contents of 
each cariopsis being replaced by a 
black powdery mass of spores; 
ustilag’inous, like Ustilago, or 
allied to it; us’tulate, wstula’tus, 
blackened, as though burned. 
Uterus (Lat., the womb), the volva, 
or receptacle of the Phalloideae. 
Vitricle, Utric'ulus (Lat., a small 
skin, or husk), (1) a small bladdery 
pericarp as in Atriplex; (2) a 
membranous sac surrounding the 
fruit proper in Carex; (3) any 
bladder-shaped appendage; (4) a 
synonym of a parenchymatous cell ; 
Utric'uli semina’les, the spores 
of certain Fungi (Lindley) ; utri- 
cular, utricula’ris,  utric’ulate, 
utricula’tus, utrie’uliform, utriculi- 
form’is (forma, shape), utric’ulose, 
utriculo'sus, having bladders, or 
bladder-like in appearance, in- 
flated. 
u'triform, utriform’is (uter, a skin 
bottle, forma, shape), bag-shaped, 
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