étellulate 
S8tigmarhize 
lular, stel’lulate, stellula’tus, di- 
minutive of stellate. 
Stelolem’ma (crj\n, a pillar, Aéuua, 
bark or skin), a sheath of thickened 
peridesmic or stelar tissue in an- 
giospermous petioles (Strasburger). 
Stem, the main ascending axis; ~ 
Bud, the plumule; ~ -clasp’ing, 
amplexicaul; ~ Leaf, a leaf given 
off from the stem, as opposed to a 
radical leaf; ~ Par’asite, a parasitic 
plant which lives on the stem of its 
host, as Loranthaceae ; ~ Ten’dril, 
a tendril which is morphologically 
a stem structure; subterra’nean, 
~,arhizome ; stem’less, having no 
visible stem, acaulous; Stem’let, a 
small stem, as the plumule. 
stenocar’pus (crévos, narrow, kapros, 
fruit), narrow fruited ; stenopet’al- 
ous (7révadov, a flower-leaf), narrow- 
petalled ; stenophyllous, -lus 
(pv\Aov, a leaf), narrow leaved ; 
Steno’sis, (1) cell-formation with 
constriction of the original cell- 
wall; (2) the contraction of a 
passage. 
stephanocar’pus (sredaywons, wreath- 
ing, xapros, fruit), with fruit ar- 
ranged so as to resemble a crown; 
Stephanodophy tum (dvdr, a 
plant), a plant producing an in- 
ferior achene, as Compositae ; 
Stepha‘noum, + a synonym of 
CREMOCARP and CYPSELA. 
Ste’reid (crepeos, solid), a lignified 
cell from the stereome ; Ste’reom or 
Ste’reome, the elements of a bundle 
which impart strength to it, the 
fibres, or strengthening tissue 
generally (Schwendener); Ste’reo- 
plasm (7\doya, moulded), the solid 
part of protoplasm (Naegeli). 
Sterig’ma, pl. Sterig’mata (orjprypya, 
a prop), (1) in Fungi, a stalk from 
which a spore is abjointed; (2) 
any leafy prolongation or elevated 
line from the blade of a leaf down 
the stem by decurrence; (3) 
Desvaux’s name for CARCERULE ; 
Sterig’mum is a synonym of the 
last definition. 
ater’ile, ster’ilis (Lat.), (1) barren, as 
a flower destitute of pistil, or a 
stamen wanting the anther; (2) 
used for a male or staminate 
flower ; (3) free from living organ- 
isms, such as bacteria; ~ Basid’ium, 
a body in the hymenium of Agarics 
like a basidium, but not producing 
spores, possibly 4 paraphysis; ~ 
Cells, cells of unknown function in 
the pollen-grains of Cycas and 
microspores of Isoétes and Selag- 
indla ; Steril’ity, Steril’itas (Lat.), 
barrenness, incapacity of producing 
seeds ; Steriliza’tion, the act of steri- 
lizing ; sterilize, to make free from 
living organisms or their germs. 
Ster’om = STEREOME (Crozier). 
sternotri’bal (crépyov, the breast, 
TpiBw, I beat), Delpino’s term for 
those flowers whose anthers are so 
arranged as to dust their pollen on 
the under part of the thorax of 
their insect visitors ; stern’otribe is 
a synonym. 
Ste’somy (orijcoua, fut. med. of 
tornpt, to stop), Morren’s term for 
an arrest of metamorphosis. 
Stichid’ium (ory ld.ov, alittle bladder), 
(1) in Rhodophyceae, a special 
branch of the thallus with imbedded 
tetragonidia ; (2) =CARPOCLONIUM. 
stichocar’pus, stichocar’picus (crlxos, 
a row, xapros, fruit), when fruit is 
disposed along a spiral line; stichus, 
in Greek compounds =row or rank, 
usually vertical. 
stictopet’alus (o7ixros, punctured, 
méradov, @ flower-leaf), when petals 
are covered with glandular points. 
Stig’ma, pl. Stig’mata, or Stig’mas 
(orlyua, a point), (1) that part of 
the pistil or style which receives 
the pollen; (2) a point on the 
spores of Hguisetum; (3) a caducous 
point on the apex of the columella 
in Mosses; (4) an old name for 
Stericma; (5) a coloured spot in 
unicellular Algae; ~ Disk, a disk 
forming the stigmatic surface as in 
Asclepiads ; ~ of Mosses (Hook. 
Muse. ed. 2) the mouth of the 
archegonium ; Stig’marhize (fifa, a 
root), a form of Stigmaria, regarded 
253 
