perpusilius 
phaenogamons 
vertical, either (a) to the horizon, 
or (b) to its attachment ; ~ Sys’- 
tem, = Fipro- VASCULAR SysTEM 
(Crozier). 
perpusil'lus (Lat.), very small. 
Persicic’olor (persicum, a peach, color, 
colour), persici’nus (Lat.), peach- 
coloured, a rosy pink. 
persis’tent, persis’tens (Lat., persever- 
ing), remaining till the part which 
bears it is wholly matured, as the 
leaves of evergreens ; Persis’tence, 
constancy, as ~ of Varia’tion, the 
variety or tendency to vary per- 
sisting. 
per’sonate, persona’tus (Lat., masked), 
used for a bilabiate corolla having 
@ prominent palate. 
Perspira’tion (Crozier), 
SPIRATION. 
pertu’sate = pertuse’, yertw’sus (Lat., 
perforated), having slits or holes. 
Pe’rula (Lat., a little wallet), (1) the 
scale of a leaf-bud; (2) Lindley 
also gives it as a projection in the 
flower of Orchids, the Mrentum ; 
(3) = PeritHecium ; per’ulate, 
perula'tus, furnished with protec- 
tive scales. 
perval’var (per, through, valva, a 
valve) Ax’‘is, the main __longi- 
tudinal axis of a Diatom frustule, 
the line which forms the centre of 
the dividing plane, penetrates the 
cell-cavity in the epi- and hypo- 
thecal directions at equal distances 
from the enclosing walls, and unites 
the centres of the valves (0. 
Mueller). 
per’vious, per'vius (Lat., passable), 
having an open passage-way. 
Pes, Ped’is (Lat.), a foot, (1) used in 
such compounds as longipes, long- 
stalked ; (2) a foot of twelve inches 
measurement ; ¢f. Foot. 
Pet’al, Pet'alum (réradov, a flower- 
leaf), one of the leafy expansions 
in the floral whorl styled the 
Corolla; the word was taken by 
Blair from Columna; ~ -like, ~ 
seo TRAN- 
-shaped, petaloid; petala’tus, 
possessing petals or a corolla; 
Petalifica’tion (facio, I make) = 
191 
PETALODY ; petaliferous, bearing 
petals; pet/aliform, petaliform’is 
(forma, shape), petal-shaped ; pet’- 
aline, petali’nus, petal-like, or re- 
lating to petals; Pet’alode (eldos, 
resemblance), an organ simulating 
a petal; petalo’deus (Lat.), (1) = 
PeraLopy ; (2) having petals; 
Petalo’dy, the metamorphosis of 
stamens or other organs into petals; 
pet‘aloid, petaloi’deus, like a petal, 
or having a floral envelope resem- 
bling petals ; ~ An’ther, an anther 
borne on a petal, the filament re- 
sembling a petal; Petaloma‘nia 
(uavla, madness), an abnormal 
multiplication of petals ; Petaloste’- 
mones (sTjuwv, a filament), plants 
with flowers whose stamens are 
adherent to the corolla; pet’alous, 
Blair’s term for having petals. 
petiola’ceus (petiolus, a little foot or 
leg + aceus) (Lat.), having reference 
to the petiole by attachment, 
transformation, or appearance ; 
petiola’‘neus or petiolea’nus (Mod. 
Lat.), consisting of the petiole 
or of some modification of it ; pet’- 
iolar, petio'laris, pet‘iolary, borne 
on, or pertaining to a petiole ; pe- 
violate, petiola’tus, having a pe- 
tiole; Pet’iole, Pet'iolus, the foot- 
stalk of a leaf; Pet’iolule, Petiol’u- 
lus, (1) a small petiole; (2) the 
petiole of a leaflet; petiol’ulate, 
petiolula’tus, having a petiolule ; 
petiol’ular, petiolula’ris, Thclonping 
to a petiolule, 
petrae’us (Lat.), growing amongst 
rocks ; petro’sus (Lat., rocky), 
growing amongst stones. 
Pezizaxan'thine (+ XANTHIN), a 
special orange-colouring matter, 
also termed Pezi’zin, Rosoll’s name 
for the same pigment in Peziza 
aurantia, Pers., etc. ; pezi’zoid 
(eldos, resemblance), peziza-, or cup- 
shaped. 
phaenic’eus = PHOENICEDS, 
phaenocar’pous -pus (palyw, I appear, 
xapros, fruit), having a distinct 
fruit, with no adhesion to sur- 
rounding parts; phaenog’amous 
