GLOSSARY. 



425 



Pentdmerous (-us). Composed of five 

 members in a circle; 176. 



Ptnta luli-iu. The Linnaean class with 

 Pentandrous, i. e. five-stamened flow- 

 ers; 249, 334. 



Pentapetalous (-us). Five-petalled ; 244. 



Pentaphyllous (-us). Five-leaved: 243. 



Pen/apterous (-us). Five-winged. 



Pentasepalous (-us). Of five sepals ; 244. 



/', n/ii.ftichous(-us). In five vertical ranks; 

 123. 



Pepo, Peponida, Peponium. A gourd- 

 fruit; 298. 



Perennial (Perennis, Perennans). Last- 

 ing year after year ; 32. 



Perfect (Perfectus). Said of a flower 

 which is hermaphrodite. 



Pet-foliate (-at us). Where a stem seem- 

 ingly passes through a leaf; 167. 



Perforate (-ittits). Pierced, or having 

 translucent dots which look like holes. 



PergameneuS) Pergamentaceus. Parch- 

 ment-like in texture. 



Peri. Greek for around; hence such 

 compounds as 



Perianth (Perianthium). The floral en- 

 velopes or leaves of the flower, consist- 

 ing of calyx, corolla, or both ; 164, 243. 



Pericarp (-urpium). The fructified 

 ovary; 286. 



Pericdrjric (-icus). Relating to the peri- 

 carp. 



Perichcetial (-ialis). Relating to the 

 Perickcetium, a set of bracts around 

 the fruit-stalk in Mosses. 



Peridddium. The sheathing base of a 

 leaf when it expands and surrounds 

 the supporting branch. 



Perii-liiiiinii. Involucre of the capitu- 

 ' lum of Composite ; 148. 



Per i< term (-ermu or -ermis). Outer bark 

 or Epiphloeum. 



Periyone, Perigonium. Synonym of 

 Perianth; 164. 



Perigynium. Name of hypogynous 

 bristles, scales, or a sac, which sur- 

 rounds the pistil (also the stamens 

 when present) of many Cyperacese. 



Periyynous (-us). Literally around the 

 ovary ; said of organs which are ad- 

 nate to the perianth, or to this as con- 

 nate with the low r part of the pistil; 

 182. 



Peripetalous (-us). Around the petals. 

 Peripherie (-icus). Of or belonging to the 

 circumference ; as of an embryo coiled 

 round the outside of the albumen. 

 Periphuranthiuiii. Synonym of the 

 involucre of Composite; 148. 



Peripterus. Surrounded by a wing or 



thin border. 



Perisperm (-ermiurn). The albumen of 

 the seed, at least the exterior and or- 

 dinary albumen; 14, 310. 

 Peristome (Peristoma or Peristomiitii/ ). 

 The fringe or other structure surround 

 ing the orifice (stoma) of a Moss. 

 Peritropous (-us) or Peritropal. Said 

 of a seed which is horizontal in the 

 pericarp; or of a radicle pointed to- 

 ward the sides of the pericarp. 

 Persistent (-ens). Remaining even on 



the fruit, or over winter ; 243. 

 Personate (-atus). Masked, as when a 

 bilabiate corolla has a prominent pal- 

 ate ; 248. 



Pervious (-ius). With an open passage- 

 way. 



Perfuse (-usus). Having slits or holes. 

 Perula, pi. Perulce. Scales of leaf-buds 



and the like; 40. 

 Perulate (-atus). Furnished with pe.ru- 



lae or scales. 



Pes, gen. pedis. A foot. Hence in 

 Latin compounds Longipes, long- 

 stalked, Brevipes, short-stalked, &c. 

 Petal (Petalum). A corolla-leaf; 165. 

 Petaline (-inus), Petaloid (-oideus). 

 Petal-like, or relating to petals ; 118. 

 Pctalotly. Name for the metamorphosis 

 of other organs (such as stamens) into 

 petals; 174. 

 Petiolar (-aris). Borne on or relating 



to a petiole. 

 Petiolate (-atus), Petioled. Having a 



petiole. 

 Petiole (Petiolus). The footstalk of a 



leaf; 85, 104. 

 Petiolulate (-atus), Petiolular (-aris). 



Having a 

 Petiolule (Petiolulus). A footstalk of a 



leaflet; 105. 



Pttraeus. Growing among rocks. 

 Petrosus. Growing in stony places. 

 Phcenogams, Phcenogamia, Pha'ii<></- 

 muus plants. Plants sexually propa- 

 gating by flowers, of which the essen- 

 tial organs are stamens and pistil ; 3, 

 334, 340, 344. 



Phalanges, sing. Phalanx. The bundles 

 of stamens in diadelphous or polyadel- 

 phous flowers. 

 Phanerogams, Phaneroyamia, &c. See 



Plui'iiogains. &c. 

 Phlceum. Greek name for bark. 

 Phce.nice.us. Deep red with some scar- 

 let. 

 Phoranthium. A name for the recep- 



