ants, like the green pulp of
leaves, 132.

_Parietal_ (placentae, &c.), attached to the walls (_parietes_) of the
ovary.

_Paripinnate_, pinnate with an even number of leaflets.

_Parted_, separated or cleft into parts almost to the base, 55.

_Parthenogenesis_, producing seed without fertilization.

_Partial involucre_, same as an _involucel_; _partial petiole_, a
division of a main leaf-stalk or the stalk of a leaflet; _partial
peduncle_, a branch of a peduncle; _partial umbel_, an umbellet, 76.

_Partition_, a segment of a _parted_ leaf; or an internal wall in an
ovary, anther, &c.

_Patelliform_, disk-shaped, like the _patella_ or kneepan.

_Patent_, spreading, open. _Patulous_, moderately spreading.

_Pauci-_, in composition, few; as _pauciflorous_, few-flowered, &c.

_Pear-shaped_, solid obovate, the shape of a pear.

_Pectinate_, pinnatifid or pinnately divided into narrow and close
divisions, like the teeth of a comb.

_Pedate_, like a bird's foot; palmate or palmately cleft, with the side
divisions again cleft, as in Viola pedata, &c.

_Pedicel_, the stalk of each particular flower of a cluster, 73.

_Pedicellate_, _Pedicelled_, borne on a pedicel.

_Pedalis_, Latin for a foot high or long.

_Peduncle_, a flower-stalk, whether of a single flower or of a
flower-cluster, 73.

_Peduncled_, _Pedunculate_, furnished with a peduncle.

_Peloria_, an abnormal return to regularity and symmetry in an irregular
flower; commonest in Snapdragon.

_Peltate_, shield-shaped; said of a leaf, whatever its shape, when the
petiole is attached to the lower side, somewhere within the margin, 53.

_Pelviform_, basin-shaped.

_Pendent_, hanging. _Pendulous_, somewhat hanging or drooping.

_Penicillate_, _Penicilliform_, tipped with a tuft of fine hairs, like a
painter's pencil; as the stigmas of some Grasses.

_Pennate_, same as pinnate. _Penninerved_ and _Penniveined_, pinnately
veined, 51.

_Penta-_ (in words of Greek composition), five; as _Pentadelphous_, 99;
_Pentagynous_, with five pistils or styles; _Pentamerous_, with its
parts in fives, or on the plan of five; _Pentandrous_, having five
stamens, 112; _Pentastichous_, in five ranks, &c.

_Pepo_, a fruit like the Melon and Cucumber, 119.

_Perennial_, lasting from year to year, 38.

_Perfect_ (flower), having both stamens and pistils, 81.

_Perfoliate_, passing through the leaf, in appearance, 60.

_Perforate_, pierced with holes, or with tra