XVIU OLOSSART. 



Ob; in conjunction witli terms means inverted; as ohooate is 



ovate witli the attachment at the narrow end. 

 Oblong ; long oval, equally broad at each end. 

 Oerea ; a tubular membranous stipule surrounding the stem. 

 Opaque ; not shining. 

 Opposite ; when two similar organs grow one on each side of 



some body ; or different organs are opposed to each other 



with a stem between them. 

 Orbicular ; nearly round and flat. 

 Oval ; an ellipse ; a figure rounded at each end, not broader at 



one end than at the other ; and about twice as long as broad. 

 Ovary ; the young seed-vessel. 

 Ovate ; eggshaped ; a short flat figure (thin like a leaf) rather 



broader below the middle of its length. 

 Ovoid; a solid eggshaped figure. 

 Ovule ; the young seed. 



Palate ; the prominent part of the base of the lower lip which 



closes the mouth of a ringent corolla. 

 Pales ; the leaflike parts of the flower of Grasses, enclosing the 



stamens, pistils, and hypogynous scales. 

 Palmate ; with lobes spreading like the fingers of a hand from 



the same point. 

 Panicle ; a raceme with branching pedicels : hence paniculate. 

 Papilionaceous ; like the flower of a Pea. 

 Pajnlla ; small elongated protuberances. 

 Papillose ; with small long protuberances. 

 Pappus ; the crest of the fruit in Composites, formed of the 



' altered limb of the calyx. 

 Parabolic ; starting from a broad base and gradually narrowing 



with curved sides to a blunt point, as the divisions of a 



calyx. 

 Parallel Yeins start several together from the base of a leaf, , 



diverge slightly, then proceed parallel and simple, and 



converge at the apex. 

 Parietal ; on the inner surface of an ovary. 

 Patent ; spreading widely. 

 Pedate ; palmate of three lobes with the lateral lobes having 



similar large lobes on their upper edge. 

 Pedicel ; the branch of a peduncle. 

 Peduncle; flowerstalk. 

 Pellucid ; nearly transparent. 

 Peltate ; when its point of attachment is on the face, not at the 



edge of a leaf or other organ. 

 Pendulous ; seeds hanging from the top of an ovary. 

 Pentagonal; with flve angles having convex spaces between 



them. 



