Actinostomous 
Adhesion 
actinost/omous (¢Tdua, a mouth), 
radiate structure round the ostioles 
of Lichens and other Cryptogams. 
Actinoph’ryds (Actinophrys, Ehrenb., 
a genus of Rhizopods), Gobi’s term 
for globes with radially-arranged 
pseudopodia in Pseudospora, a 
parasite on Vaucheria. 
ac’tive, in a growing condition ; not 
dormant. 
acu'leate, aculea'tus (aculeus, a sting 
or prickle), armed with prickles as 
the stem of a rose; acu’leolate, 
aculeola'tus, somewhat prickly ; 
aculeo’sus, decidedly _ prickly ; 
acu'leiform, aculeiform'is (forma, 
shape), prickle-shaped ; Acu’leus 
(Lat.), a sharp epidermal emerg- 
ence, a prickle; pl. Acwiei; 
Acu’leolus, a diminutive of the last. 
Acu’men (Lat., a point), a tapering 
point; acu’minate, acumina’tus, 
having a gradually diminishing 
point; acuminifo'lius (folium, a 
leaf), with acuminate leaves ; 
acu’minose, acumino'sus, approach- 
ing acuminate; acumin’ulate, having 
a small terminal point. 
acutang’ular, acutang'ulus (Lat.), 
when stems are sharply angular ; 
acutate’ (acw’tus, sharp), slightly 
sharpened, as at the apex ; acu'te, 
acu'tus, distinctly and sharply 
pointed, but not drawn out; acu- 
tiflor’us (Lat., flos, floris, a flower), 
with acute perianth segments ; 
acutifo’lius (Lat., foliwm, a leaf), 
with pointed leaves; acutilo’bus 
(Lat., lobus, a lobe), composed of 
lobes which are acute ; acutius’culus 
(Lat.), somewhat acute. 
acye’lic (a, not ; KUKdos, a circle), used 
of flowers whose parts are arranged 
spirally, not in whorls. 
Adapta’tion (adaptatus, fitted), the 
means by which an organism adapts 
itself to changed surroundings. 
adax’ial (ad, to; axis, an axle), the 
side or face next the axis, ventral. 
adducent’ia Va'sa (ad, to; duco, I 
lead), the spirals in tracheids, 
which spirals were formerly sup- 
posed to be vessels, 
Adducto'res, Hedwig’s term for arche- 
onia. 
Adelph’ia (dde\¢es, a brother); (1) a 
fraternity ; a collection of stamens 
by their filaments into one bundle ; 
pl. Adelph’iae, two or more similar 
bundles; (2) used by Galton for 
fraternities in variation ; adelph’ic, 
adelph’icus ; adelph’ous, adelph'us, 
having brotherhoods of stamens ; 
Adelphotax’y (rdés, order), used 
by Hartog to express the mutual 
attraction of spores of Achyla and 
of Pedastreae after extrusion. 
Ade’lome (possibly from déy\os, con- 
cealed) = ALBURNUM (Lindley). 
Aden (4%, a gland), a gland or 
tubercle : aden’iform (forma, shape), 
a hybrid term for gland-shaped ; 
adenoca’lyx (ka\vé, a cup), where the 
calyx is studded with glandular 
spots ; ad’enoid (eldos, like), gland- 
like; ~ Or’gan, Williamson’s term 
for the ligule of Lepidodendron ; 
Adenopet’aly (méradov, a flower 
leaf), a term proposed by C. Morren 
for the transformation of nectaries 
into petals, or similar structures ; 
Aden’ophore (dopéw, bear), a stalk 
supporting a gland ; adenoph‘orous, 
bearing glands; adenophyl'lous 
(pbdXov, a leaf), glandular leaved ; 
adenop’odous, aden’opus (robs, odds, 
a foot), with the petiole or ped- 
uncle glandular; adenoste’mon 
(crjuov, a stamen), having glands 
on the stamens ; ad’enose, ad’enous, 
glandular. 
Ades'’my (a, without ; decuds, a bond), 
Morren’s term for congenital separ- 
ation of parts normally united. 
Adflux’ion (ad, to; fluo, I flow), the 
attraction by which sap is drawn 
towards the leaves. 
adglu'tinate, adglutina’'tus (ad, to, 
glutino, I glue), grown together, 
accrete, 
adhe’rent, adhe’rens (adhaereo, to stick 
to), the union of parts usually 
separate ; ~ Verna’tion, when the 
bases of Fern - fronds are continu- 
ous with the caudex; Adhe’rence, 
Adhe’sion, the state of union with 
