
GLOSSARY OF TECHNICAL WORDS. 
laciniated : slashed or cut into irregular 
narrow taper-pointed lobes or seg- 
ments. 
lamina : the leafy portion or blade of the 
frond. 
lanate : having a woolly surface. 
lenticular: having a form like that of a 
double convex lens. ] 
lobate: notched into deep divisions or 
lobes. 
lobules : little lobes; usually applied to 
the secondary divisions of a doubly 
pinnatifid frond, 
marattiaceous: belonging to, and repre- 
sented by the family Marattia. 
marchantiform : Marchantia-like, that is, 
scale-like, lying flat on the surface of 
the ground. 
marginate: applied among ferns to the 
production of an excurrent membrane 
on the surface of the frond, which gene- 
rally forms a kind of double margin. 
medial : in the middle ; applied when the 
receptacle is situated between the base 
and apex of the vein. 
multifid : many-cleft; cut into many seg- 
ments. 
multifid-crisped : cut into many segments, 
which are spread out, and curly. 
mucronate : having a short hardened point. 
muricate: roughish with small raised 
points. 
muriculate : finely muricate ; covered with 
smaller raised points. 
naked : coverless; applied to those ferns 
where the sorus is without indusium or 
involucre. 
mode: the point on a stem at which a leaf 
or frond is developed. 
obovate: inversely egg-shaped. 
oligocarpous : consisting of few spore-cases ; 
the opposite of polycarpous; applied 
when the sorus is composed of a com- 
paratively small number of capsules. 
ophioglossaceous : belonging to, and repre- 
sented by the family or genus Ophio- 
` glossum. 
ovoid : approaching to oval or egg-shaped. 
palmate: spread out flat in a hand-shaped 
form. 
paniculate : compoundly branched so as to 
resemble a panicle. 
papillose: bearing papille or little teat- 
like projections from the surface. 
parenchym : the spheroidal cellular tissue 
of plants. 
patent : spreading at an angle of about 45°. 
pectinate : comb-shaped ; split-into narrow 
close even segments. 


355 
pedate: palmate, with the two outer or 
lateral lobes divided towards their 
base. 
pedicellate : stalked ; same as petiolate. 
peltate: shield-like ; roundish with a central 
attachment. 4 
persistent : enduring; the opposite of 
fugacious. 
petiolate : furnished with little stalks or 
petioles ; when they are very short, 
the diminutive term petioluate is 
sometimes used. 
pilose : hairy. 
pinna : the divisions of a pinnate frond. 
pinnate: completely once divided, 
parts being distinctly separated. 
pinnate-pinnatifid : once pinnate, 
then pinnatifid. 
pinnatifid: partially once divided, the 
parts being connected at the base. 
pinnules : little pinne ; the divisions of a 
pinna when quite distinct ; when there 
is more than one series, the first are 
primary pinnules, the next secondary, 
and so on. 
pinnulets : little pinnules; the same as 
secondary pinnules. 
pistillidia : the mother-cells produced on 
the germ-frond of ferns which give rise 
to the embryo and axis of growth. 
pleurenchym : the elongated or woody tissue 
of plants. 
plicate : folded up straight. 
polycarpous : consisting of many spore-cases; 
applied when the sori are large, and 
the spore-cases very numerous. 
polypodiaceous : belonging to, and repre- 
sented by the family or genus Poly- 
podium. 
polypodioid : having some resemblance to 
Polypodium. 
the 
and 
| prosenchym : a peculiar form of cellular 
tissue, in which the cells have acute 
extremities. 
prothallus : the germ-frond of a fern. 
pruinose: covered with a fine secretion 
forming a bloom similar to that seen 
on many fruits. 
pulverulous: powdery, covered with meal- 
like dust. 
punctiform : dot-like, forming distinct round 
or roundish heaps ; applied to the sori. 
quadrate : square, four-sided. 
quadripinnate: four times pinnate. 
quadripinmatifid : four times pinnatifid. 
rachis : the main ribs of the fronds, con- 
necting the separate parts. 
rachiform : reduced to the form of a rib or 
rachis. 
receptacle : that point of the frond to which 
the sorus is affixed. 
AA2 

