pustulose 
Ptychoides 
Ptychoi’des (eldds, resemblance), 
the outer surface of the same 
(Hartig). 
Ptyx’is (r7véts, a folding), vernation. 
pu’bens (Lat., arrived at puberty) = 
pubescent; puber’ulus (dim. of 
Lat. puber, downy, ripe), slightly 
hairy ; Pu’ber (Lat.), maturity, as 
of flower or fruit; Pu’berty, 
Pu'bertas, the transition from a 
young state to maturity of func- 
tion ; Pu’bes (Lat.), Pubes’cence, the 
hairiness of plants; pubes’cent, 
pubes'cens, clothed with soft hair 
or down; pu’bera [Ae’tas], the 
period in a fruit succeeding the 
fertilization of the ovules; pubig’- 
erous (gero, I bear), pubescent. 
Puffing, the emission of spores in a 
cloud; the equivalent of the 
German “‘ Stéuben.” 
pugio’niform, pugioniform'is (pugio, 
a dagger, forma, shape), dagger- 
shaped. 
pulla’tus (Lat.), clothed in black. 
pulley-shaped, circular, and com- 
pressed in its circumference. 
pul'lulate (pullulo, to bud), to bud, 
as in spring ; Pullula’tion, sprout- 
ing; especially characteristic of 
the yeast-plant. 
pul'lus (Lat., dusky), black or nearly 
black. 
Pulp, Pul'pa (Lat., the flesh of fruit), 
the juicy or fleshy tissue of a 
fruit; pul’pose, pulpo'sus, pulpy. 
Pulsa’tion (pulsatio, a beating), of 
vacuoles, the rhythmic increase and 
decrease of size in naked zoospores 
and plasmodia. 
pulvera’ceous, -ceus, pulver’eus(Lat.), 
powdery ; pulver’ulent, pulverulen’- 
tus (Lat., dusty), powdered, as if 
dusted over. 
Pulvil‘lum (Lat.), in botanic gardens, 
a hot-bed. 
pul’vinate, pulvina’tus (Lat. ),cushion- 
shaped; pulvin‘iform, pulvini- 
form'is, having the shape of a 
cushion or pad; Pulvin’ulus, pl. 
Pulvin’ula, simple or branched 
excrescences on the surface of 
some Lichens, soredia ; Pulvi’nus 
216 
(Lat., a cushion), an enlargement 
close under the insertion of a leaf, 
the swollen base of the petiole as 
in Mimosa pudica, Linn. 
Pul'vis (Lat.), dust, powder, etc. 
Pulvis’culus (Lat., small dust), ‘‘ the 
powder contained in the spore- 
cases of some Fungi” (Hen- 
slow). 
pu’milus (Lat., dwarfish), low or 
little. 
Punc’ta, pl. of Pune’tum (Lat.,apoint), 
the marking on the valves of Dia- 
toms ; punc’tate, puncta’tus (Lat.), 
marked with dots, depressions or 
translucent glands; puncta’ta Va'sa 
= dotted vessels; punctiflor’us 
( flos, floris, a flower), having dot- 
ted flowers; pune’tiform (forma, 
shape), in the form of a point or 
dot, reduced to a mere point; 
punctic’ulate, puncticula’tus, punc- 
ticulo’sus, minutely punctate; 
Punctum Vegetatio’nis, the growing 
point. 
pun’gent, pun’yens (Lat., piercing), 
ending in a rigid and sharp point, 
s in a holly-leaf. 
punic’eous, -cews, crimson. 
pure, applied to forests, means un- 
mixed, the growth being confined 
to one form. 
pur’ple, w secondary tint, a mixture 
of red and blue in varying propor- 
tions. 
purpurar’ius (Lat.), pertaining to 
purple; purpura’tus (Lat.), em- 
purpled ; purpuras’cens (Lat.), 
becoming or turning purple; pur- 
purel'lus (Lat.), purplish; pur- 
pu’reus (Lat.), purple ; Pur’purine, 
a colouring principle in madder, 
Rubia tinctoria, Linn. ; purpuri’nus, 
(Lat.), somewhat purplish. 
purse-shaped, pouch-shaped. 
pusil’lus (Lat., petty), very small, 
or weak and slender. 
pustular (pustula, a pimple), having 
slight elevations like blisters ; 
pus'tulate, pustula’tus, as though 
blistered ; Pus’tule, a pimple or 
blister; pus’tulose, pustulo’sus 
(Lat.), blistery or pimply. 
