GLOSSARY. 



425 



Pentdmerous (-us). Composed of five 

 members in a circle; 176. 



Pentandria. The Linnaean class with 

 Pentandrous, i. e. five-stamened flow- 

 ers; 249, 334. 



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



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



Pentdpterous (-us). Five-winged. 



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



Pentdstichous (-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. 



Perfoliate (-atus). Where a stem seem- 

 ingly passes through a leaf; 167. 



Perforate (-atus). 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 (-arpium). The fructified 

 ovary; 286. 



Pericdrpic (-icus). Relating to the peri- 

 carp. 



Perichcetial (-Mis), Relating to the 

 Perichcetium, a set of bracts around 

 the fruit-stalk in Mosses. 



Periclddium. The sheathing base of a 

 leaf when it expands and surrounds 

 the supporting branch. 



Periclinium. Involucre of the capitu- 

 lum of Composite ; 148. 



Periderm (-erma or -ermis). Outer bark 

 or Epiphloeum. 



Perigone, Perigdnium. Svnonym of 

 Perianth; 164. 



Perigynium. Name of hypogynous 

 bristles, scales, or a sac, which sur- 

 rounds the pistil (also the stamens 

 when present) of many Cyperaceae. 



Perigynovs (-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. 



Periphoranthium. Synonym of the 

 involucre of Composite ; 148. 



Peripterus. Surrounded by a wing or 

 thin border. 



Perisperm (-ermium). The albumen of 

 the seed, at least the exterior and or- 

 dinary albumen; 14, 310. 



Peristome (Peristoma or Peristdmium). 

 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. Ferulae. Scales of leaf-buds 

 and the like; 40. 



Perulate (-atus). Furnished with peru- 

 Ice 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. 



Petalody. 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 (-arit). 

 Having a 



Petiolule (Petiolulus). A footstalk of a 

 leaflet; 105. 



Petroeus. Growing among rocks. 



Petrosus. Growing in stony places. 



Phcenogams, Phcenogamia, Phcenoga- 

 mous 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, Phanerogamia, &c. See 

 Phaenogams, &c. 



Phlceum. Greek name for bark. 



Phoeniceus. Deep red with some scar- 

 let. 



Phoranthium. A name for the recep* 



