426 



GLOSSARY. 



tacle of the capitulum in Composite ; 

 148. 



Phycology. The botany of Algse. 



Phylla, Leaves in Greek; combined 

 with Greek numerals, forming such 

 terms as Diphyttous, Triphyllous, &c., 

 to Polyphyllous. 



Phyllocladium. A branch assuming the 

 function of foliage ; 65. 



Phyllodineous (-eus) Relating to a 



Phyllodium. A petiole usurping the 

 form and function of a leaf-blade; 

 110. 



Phyllody, Phyllomorphy. Names for 

 the transformation or metamorphosis 

 of floral organs into leaves ; 174. 



Pliyllotiixis, Phyllotaxy. Leaf-arrange- 

 ment; 119. 



Phyllomania. The unusual or abnormal 

 production of leaves. 



Phyllophore (-orum). The budding sum- 

 mit of a stem on which leaves are de- 

 veloping. 



Phyllum. Greek for leaf; 6, 85. See 

 Phylla. 



Phyllome, Phylloma. An assemblage 

 of leaves, or of incipient leaves in a 

 bud. Also recently used by German 

 botanists for leaf generically or poten- 

 tially, that which answers to a leaf; 6. 



Phytoyraphy. Botany as relates to the de- 

 scription and illustration of plants ; 345. 



Phy'ology. Synonym of Botany. 



Phytomer, pi. Phytomera. Plant-ele- 

 ments in morphology ; same as 



Phyton. Greek name for plant; lias 

 been used in the sense of plant-ele- 

 ment, or plant-unit; 7. 



Phytotomy. Same as Vegetable Anatomy 

 or Histology; 2. 



Piceus. Pitch-black or brownish-black. 



Pictus. Painted, or rather as if painted. 



Pileate (-atus), Pikiformis. Having the 

 form of a cap or Pileus. 



Pileorhiza. The root-cap. 



Pillferous (-us). Bearing or tipped with 

 hairs (pill). 



Pilosciusculus. Slightly hairy. 



Pilose (-osus). Hairy, in general with 

 any sort of pilosily ; in particular with 

 soft and distinct hairs. 



Pinna. One of the primary divisions of 

 a pinnate leaf, either simply pinnate, 

 when it is a leaflet, or a partial petiole 

 or rhachis with the leaflets when the 

 leaf is bipinnate; 104. 



Pinnate (-atus). When leaflets are 

 arranged along each side of a com- 

 mon petiole; 100. 



Pinnately cleft, lobed, parted, &c. ; 99. 



Pinnately veined. Feather-veined ; 93. 



Pinndtijid (-idus). Pinnately cleft. 



Pinna tilobatus, Pinnatilobus. Pinnatelv 

 lobed. 



Pinnatipartitus. Pinnately parted. 



Pirtnatisectus. Pinnately divided quite 

 down to the rhachis. 



Pinnule (Pinnula ). One of the pinnately 

 disposed divisions of a pinna; a sec- 

 ondary pinna; 104. 



Pisiform (-ormis). Pea-shaped; resem- 

 bling a pea. 



Pistil (Pistillum). The female organ of 

 a flower, consisting of ovary, style. 

 and stigma, or at least of ovary and 

 stigma ; 302, 259. 



Pistillate (-atus), Pistilliferous. Said of 

 a plant or a blossom provided with 

 pistil, most properly for one having 

 pistil only; 191. 



Plstillidium. One of the names of the 

 analogue of pistil in Mosses, &c. 



Pistillody. Name for the metamorphosis 

 of other organs into carpels; 174. 



Pitcher. See Ascidium. A tubular or 

 cup-shaped leaf, which usually holds 

 some liquid; 111. 



Pith. A central cellular part of a stem, 

 especially of an exogenous stem ; 75. 



Pitted. Marked with small depressions 

 or pits. 



Placenta. That in the ovary which 

 bears the ovules, sometimes the mere 

 united margins of the carpel-leaves, 

 sometimes a thickening or enlarge- 

 ment of them, or even of some other 

 part of the ovary; 201. 



Placentation (-io). The disposition of 

 the placentae. 



Placentiform (-ormis). Quoit-shaped, 

 or in form like a flat cake. 



Plaited. See Plicate. 



Plane (Planus). With flat surface or 

 surfaces. 



Platys. Greek for wide, in such com- 

 pounds as Platyphyllus, broad-leaved, 

 &c. 



Pleios. Greek for full, used in com- 

 pounds for several or many; as Pleio- 

 ptiyUottt, several-leaved, &c. Simi- 

 larly Pleistos for a great manv. 



Pleiochdsium. A several-raved cyme; 

 152, 155. 



Plenus. Full. Flos pltnus is what gar- 

 deners call a "double flower," that is 

 one in which the petals or other flower- 

 leaves are abnormally multiplied. 



Pleurenchyma. Same as woody tissue. 



