perpusillus 
phaenogamous 
vertical, either (a) to the horizon, 
or (b) to its attachment ; ~ Sys’- 
tem, = FIBRo-VvascULAR 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 
a prominent palate. 
Perspira’tion (Crozier), see TRAN- 
SPIRATION. 
pertu’sate = pertuse’, pertu’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 Mrenrum ; 
(3) = PrrirHecium ;_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). 
pervious, 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 ; cf. Foor. 
Pet/al, Pet’alum (réradoy, w flower- 
leaf), one of the leafy expansions 
in the floral whorl styled the 
Corolla; the word was taken by 
Blair from Columna; ~ -like, ~ 
-shaped, etaloid; petala’tus, 
possessing petals or a corolla; 
Petalifica’tion (facio, I make) = 
191 
PrtTaLopy ; petaliferous, bearing 
petals; pet/aliform, petaliform’ta 
(forma, shape), petal-shaped ; pet’- 
aline, petals’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, petalor'’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 
(uavia, madness), an abnormal 
multiplication of petals ; Petaloste’- 
mones (orjuwy, 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, petiolary, borne 
on, or pertaining to a petiole; pe- 
Violate, petiola’tus, having a pe- 
tiole ; Pet’iole, Pet’tolus, the foot- 
stalk of a leaf ; Pet’iolule, Petiol’u- 
lus, (1) a small petiole; (2) the 
petiole of a leatiet; petiol’ulate, 
petiolula'tus, having a petiolule ; 
petiol’ular, petiolula’ris, belonging 
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 
(eléos, resemblance), peziza-, or cup- 
shaped. 
phaenic’eus = PHOENICEUS. 
phaenocar’pous -pus (patyw, I appear, 
xapros, fruit), having a distinct 
fruit, with no adhesion to sur- 
rounding parts; phaenog’amous 
