426 



GLOSSARY. 



tacle of the capitulum in Composite ; 

 148. 



Phycology. The botany of Algae. 



Phylla. Leaves in Greek; combined 

 with Greek numerals, forming such 

 terms as Diphyttous, Triphyllous, &c., 

 to Polyphyllous. 



Phyttocladium. A branch assuming the 

 function of foliage ; 65. 



Phyllodineous (-eus). Relating to a 



Phyllddium. A petiole usurping the 

 form and function of a leaf-blade; 

 110. 



PhyUody, Phyllomorphy. Names for 

 the transformation or metamorphosis 

 of floral organs into leaves ; 174. 



Phyllotdxis, 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 

 Phrlla. 



Phyllome, Phylldma. 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. 



Phytdgraphy. Botany as relates to the de- 

 scription and illustration of plants ; 345. 



Phy'ology. Synonym of Botany. 



Phytomer, pi. Pkytomera. Plant-ele- 

 ments in morphology ; same as 



Phyton. Greek name for plant; has 

 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), Pileiformis. Having the 

 form of a cap or Pileus. 



Pileorhiza. The root-cap. 



Piliferous (-us). Bearing or tipped with 

 hairs (pill). 



Pilosciusculus. Slightly hairy. 



Pilose (-osus). Hairy, in general with 

 any sort of pilosity ; 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. 

 Pinndtifid (-idus). Pinnately cleft v . 

 Pinnatilobatus, Pinnatilobus. Pinnately 



lobed. 



Pinnatipartitus. Pinnately parted. 

 Pinnatisectus. 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. 



Pistillidium. 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 ; 261. 

 Placentation (-to). 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. 



Pleivs. Greek for full, used in com- 

 pounds for several or many ; as Pleio- 

 phyllovit, several-leaved, &c. Simi- 

 larly Pleistos for a great many. 

 Pleiochdsium. A several-rayed cvme } 



152, 155. 



Plenus. Full. Flos plenus 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. 



