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BOTANICAL TERMINOLOGY. 



Obovate. Ovate, with the narrowest 



portion at base. 

 Obsolete. When a part is obscure, 



and as if worn away. 

 Obtuse. Blunt, rounded. 

 Obvolute. Where one margin of a 



leaf in the bud is exterior, the other 



interior. 

 Ochrea. A cylindrical stipule. 

 Octandrous. Having eight stamens. 

 Octogynous. Having eight styles. 

 Offset. A lateral branch, terminated 



by a cluster of leaves, and capable 



of taking root. 

 Oleaginous. Oily, affording oil. 

 Operculum. The lid or covering of 



the theca in mosses. 

 Opposite. Being on the same level, 



and base to base. 

 Orbicular. Having a circular outline. 

 Orthotropous. Where an ovule is 



turned from its origipal direction. 

 Oval. Longer than broad, the sides 



curving regularly from end to end. 

 Ovary. The germ or base of the 



pistil. The young state of a peri- 

 carp. 

 Ovate. Egg-shaped. 

 Ovule. The incipient form of a seed ; 



contained in an ovary. 



Paleaceous. Chaffy. 



Palea. A chaffy bract to a floret in 

 some compound flowers. 



Palmate. Divided so as to resemble 

 the hand and fingers. 



Panduriform. Fiddle-shaped. 



Panicle. An irregularly-branched 

 raceme. 



Paniculate. Disposed in panicles. 



Papilionaceous. Butterfly-shaped ; a 

 form of irregular polypetalous co- 

 rolla. 



Papillose. Pimpled ; having fleshy 

 protuberances. 



Pappus. The seed-down in com- 

 pound flowers. 



Parasitic. Drawing support from 

 another plant. 



Parenchyma. Common cellular tis- 

 sue in a soft state. 



Parietal. Arising from the inner wall 

 of an organ. 



Parted. Divided almost to the base. 



Partial. Particular, not general. 

 Partition. A dissepiment. 

 Pectinate. Divided like the teeth of 



a comb. 

 Pedate. Finely palmate, like the foot 



of a bird. 

 Pedicel. A partial or secondary 



flower-stalk. 

 Peduncle. A flower-stalk. 

 Peltate. Shield-like ; having a stalk 



or support in the centre. 

 Pendulous. Hanging down. 

 Pentagynous. Having five styles. 

 Pentandrous. Having five stamens. 

 Pentamerous. A whorl of five parts. 

 Pepo. An indehiscent fleshy, or in- 

 ternally pulpy fruit, formed of three 



united carpels. 

 Perennial. Lasting from year to 



year. 

 Perfoliate. Where a stem perforates 



a leaf. 

 Perforate. Having holes or dots, as 



if pricked. 

 Perianth. Floral envelopes. 

 Pericarp. The fruit ; seed-case. 

 Peridium. A spore-case. 

 Perigonium. A perianth. 

 Perigynium. A sac enclosing the 



ovary. 

 Perigynous 



ovary. 

 Perisperm. The albumen. 

 Peristome. The fringed border 



the theca in mosses. 

 Permanent. ) Remaining for a long 

 Persistent. $ time. 

 Personate. Masked ; a form of a 



labiate flower. 

 Petal. The coloured leaf of a flower. 

 Petaloid. Resembling a petal. 

 Petiole. The footstalk of a leaf. 

 Petiolule. The footstalk of a leaflet. 

 Phanogamous or Phanerogamous. 



Having visible stamens and pistils. 

 Phyllodium. A leaf formed of a di- 

 lated petiole. 

 Pilose. Hairy; having slender hairs. 

 Pinnate. Winged ; where leaflets 



arc arranged on each side of a sim- 

 ple petiole. 

 Pinnatijid. Cut-winged ; where the 



lamina on each side of a petiole is 



deeply cleft. 



Inserted around the 



of 



