GLOSSARY AND INDEX. 217 



Potnthu, destitute of any pointed tip, such as a mucro, awn, aewnmation, &c. 



Pollen, the fertilizing powder contained in tlie anther, U, 80, 103. 



Pollen-growth, 117. Polleniferous, pollen-bearing. 



Pollen-mass, Pollinium, the united mass of pollen, 104, as in Milkweed and Orchij. 



PoUicaris, Latin for an inch long. 



Pollination, the application of pollen to the stigma, 114. 



Poly-, in compound words of Greek origin, same as multi- in those of Latin origin, 

 viz. many, as 



Polyadelphous, stamens united by their filaments into several bundles, 100. 



Polyandrous, with numerous stamens (inserted on the receptacle), 100. 



Polycarpic, term used by DeCandoUe in the sense of perennial. 



Polycotyledonous, having many (more than two) cotyledons, as Pines, 23. 



Polygamous, having some perfect and some unisexual flowers, 85. 



Polygonal, many-angled. 



Pulygynous, with many pistils or styles, 105. 



Polymerous, formed of many parts of each set. 



Polymorphous, of several or varying forms. 



Polypetalous, when the petals are distinct or separate (whether few or many), 89. 



Polyphyllous, manyJeaved; formed of several distinct pieces. 



Polysepalous, same as the last when applied to the calyx, 89. 



Polyspermous, many-seeded. 



Pome, the apple, pear, and similar fleshy fruits, 119. 



Pomiferous, pome-bearing. 



Porrect, outstretched. 



Posterior side or portion of a flower (when axillary) is thi-t toward the axis, 96. 



Pouch, the silicle or short pod, as of Shepherd's Purse, 123. 



Prmcocious (Latin, pracox), unusually early in development. 



Prcejloration, same as estivation, 97. 



Prcefoliation, same as vernation, 71. 



Prcemorse, ending abruptly, as if bitten off. 



Pratensis, Latin for growing in meadows. 



Prickles, sharp elevations of the bark, coming off with it, as of the Rose. 



Prickly, bearing prickles, or sharp projections like them. 



Primine, the outer coat of the covering of the ovule, 110. 



Primordial, earliest formed; primordial leaves are the first after the cot3'Iedon3. 



Prismatic, prism-shaped; having three or more angles bounding flat sides. 



Procerous, tall, or tall and slim. 



Process, any projection from the surface or edge of a body. 



Procumbent, trailing on the groun,d, 39. 



Procurrent, running through but not projecting. 



Produced, extended or projecting ; the upper sepal of a Larkspur is produced above 



into a spur, 87. 

 Proliferous (literally, bearing offspring), where a new branch rises from an older 



one, or one head or cluster of flowers out of another. 

 Friipaculum or Propagulum, a shoot for propagation, 

 Prosenchyma, a tissue of wood-cells. 

 Prostrate, lying flat on the ground, 39. 



Protandrous or Proterandrous, the anthers first maturing, 116. 

 Proteranihous, flowering before leafing. 



Proterogynous or Protogynous, the stigmas first to mature, 116. 

 Prothallium or Prothallus, 160. 



Protoplasm, the soft nitrogenous lining or contents, or living part, of cells, 129. 

 Protos, Greek for first; in various compounds. 

 Pruinose, Pruinate, frosted ; covered with a powder like hoar-frost. 

 Pseudo-, Greek for false. Pseudo-bulb, the aerial corms of epiphytic Orchids, &C. 

 Psiloa, Greek for bare or naked, used in many compounds. 

 Pteridophyta, Pteridophytes, 166. 

 Pterii, Greek for wing, and general name for Fern, enters into many compoundSf 



