114 



A GLOSSARY OF TERMS 



PE'NETRANS. Lat. Penetrating. 



PENICIL'LATE. Supporting one or 

 several pencils of hairs. 



PENINE FORMATION. New red sand- 

 stone, (p. 47, Book viii). 



PEN'NINEHVE. Applied to leaves 

 in which the midrib, or central 

 nerve gives off to the right and 

 left, secondary nerves, like the 

 feathers 01 a pen, as in Jig. 22, p. 

 35, Book vii. 



PENI'NSULA. fr. lat. pene, almost; 

 insula, an island. Land almost 

 surrounded by water, and con- 

 nected to a continent by a neck 

 of land. 



PEXTA'STDHOUS. Having five sta- 

 mens. 



PENTAGY'NIA. fr. gr. pente, five; 

 gune, pistil. Name of an order 

 of plants. 



PENTALAS'MIS. The Anatifa ; a ge- 

 nus of cirrhopods. (Jig. 70, p. 81, 

 Book v). 



PENTAME'RAN. fr. gr. pente, five ; 

 meros, joint. A section of cole- 

 opterous insects. 



PENTA'MEROUS. Consisting of five 

 parts. 



PENTAME'RUS. fr. gr. pente, five ; 

 meros, a part. A fossil bivalve, 

 characterized by being divided 

 internally into five cells, (fig. 16, 

 p. 31, Book viii). 



PENTA'NDRIA. fr. gr. pente, five; 

 aner, stamen. Name of a class 

 of plants. 



PENTA'NGULA'TUS. Lat. Having 

 five angles. 



PENTATO'MA. A genus of hemip'- 

 terans. 



PENULTIMATE. fr. ]&t.pene, almost; 

 ullimus, the last. That which is 

 immediately next to the last. 



PEPERI'NO. It. A kind of volcanic 

 rock, formed by the cementing 

 together of volcanic sand, cinders, 

 scoriae, &c. 



PK'PO. A gourd; a three-celled, 

 fleshy indehiscent fruit, with pa- 

 rietal placenta. 



PER, PERI. Gr. A prefix, signi- 

 fying around, about, through. 



PERCA. Lat. A perch. 



PEHCNOP'TERI. Lat. plur. of Pero* 

 nopterus. 



PERCOIDES. fr. lat. perca, perch ' 

 and Gr eidos, resemblance. Sys- 

 tematic name of a family of fishes 



PER'COLATE. fr. lat. per, through, 

 colo, I strain. To strain, or drip 

 through. 



PEHCNOP'TERUS. fr. gr. perknos, spot- 

 ted ; pteron, wing. Systematic 

 name of certain Vultures. 



PERI>ICI'N.K. fr. lat. perdix, a par- 

 tridge. Perdicine birds or par- 

 tridges ; a family of Rasores, or 

 scratching birds. 



PEREDIO'LA. fr. gr. perideo, I bind 

 around. The investing membrane 

 of the sporules of algae. 



PERE'NNIAL fr. lat. per, through ; 

 annus, year. Those plants whose 

 roots remain alive more years 

 than two, but whose stems flower 

 and perish annually, are termed 

 perennial. 



PERE'NCHYMA. A term applied to 

 the amylaceous granules contained 

 within the tissue of plants. 



PERFECT FLOWER. One which pos- 

 sesses stamens and pistils and 

 produces fruit. 



PERGAME'NEOUS. Parchment-like. 



PERFO'LIATE. fr. lat. per, through; 

 folium, a leaf. Applied to a leaf 

 which is pierced by its stem. (Jig. 

 37, p. 39, Book vii). 



PE'RI ANTH. fr. gr. peri, around ; an- 

 thos, flower. The tegumeutary 

 parts of a flower. 



PERICA'RDIUM. fr. gr. peri, around ; 

 kardia, the heart. The pericar- 

 dium is a membranous sac, which 

 envelopes the heart, and the arte- 

 rial and venous trunks that pass 

 from, or into it. 



PE'RIC ARP. fr. gr. peri, around ; kar- 

 pos, fruit. Parts surrounding the 

 seeds. 



PERICLA'DIUM. fr. gr. klado> a 



