Pro´toplasm (Gr—first, + anything formed or molded), the nitrogenous fluid of variable composition found in living cells; it is the vital substance into which all food is assimilated, and from which all parts of the plant are formed.
Prox´imal (proximus, nearest), pertaining to the base or extremity of attachment.
Pru´inate, Pru´inose (as if pruinatus, pruina, hoar-frost), covered with a bloom or powder so as to appear as if frosted.
Prun´iform (prunum, a plum; forma, form), plum-shaped.
Pseudo (Gr—false, counterfeit, etc.), prefix signifying “false” or “spurious.”
Pseudo-Paren´chyma, a fungus tissue formed of closely woven and felted hyphal threads, which on section has the appearance of the cellular structure of true parenchyma.
Pubes´cence (pubescen(t-) + ce), general term to describe hairyness; specifically covered with short, soft, downy hairs.
Pubes´cent (pubes, of mature age), covered with soft, short hairs, downy; hairy.
Pullula´tion (pullulare, pp. pullulatus, pullulate), a mode of cell multiplication in which a cell forms a protuberance on one side which enlarges to size of parent cell and is cut-off from it by a dividing wall; sprouting; budding.
Pulvera´ceous, Pulver´ulent (pulvis (pulver), dust, powder), covered as if with powder or dust.