403 



GLOSSARY. 



being at the thicker end ; ob- 

 cordate, is the inverse of cordate, 

 the attachment being at the nar- 

 row end ; ob-ovate, is the inverse 

 of ovate, tlie attachment being at 

 the narrow end. 



Oblique, when the parts of an organ 

 are so divided that the sides are 

 more or less unequaL 



Oblong, of a bhmtly elhptical shape, 

 where the major and minor axes 

 bear a proportion to each other 

 of about four to one. 



Obtuse, blunt. 



Ochrea, a tubular membranous sti- 

 pule, through which the stem 

 seems to pass. 



Ochreate, furnished with ochrea. 



Opposite, applied to similar parts or 

 organs when so arranged in paii-s, 

 that one of them is immediately 

 on the opposite side of some inter- 

 posed body, or of the axis about 

 which they are disposed ; thus — 

 oppositijlorus is where the pedun- 

 cles are opposite ; oppositifolius, 

 where the leaves are opposite. 



Orbicular, perfectly or very nearly 

 circular. 



Ovary, the lowermost portion of the 

 pistil, containmg the ovules, and 

 ultimately becoming the fruit. 



Ova^, of the form of an egg, if 

 applied to a solid body ; or of 

 the figure presented by a longitu- 

 dinal section of an egg, if applied 

 to a superficial area. 



Ovoid, a solid with an ovate figure. 



Ovule, the rudimentary state of a 

 seed. 



Falate, the inferior surface of the 

 throat in ringent and personate 

 corollas. 



Pales, the membranaceous bracts 

 forming the perianth of grasses ; 

 also the chaflf-like scaly bracts on 

 the receptacle of some Compo- 

 sites. 



Palmate, having the arrangement of 

 parts on any organ such as to 

 imitate the form of an open hand. 



Palmatijid, having the subdivisions 

 of a simple organ (usually a leaf) 

 arranged palmately. 



Panicle, an inflorescence where the 

 rachis either subdivides into seve- 

 ral branches, or is furnished with 

 distinct branching peduncles. 



Panicled, having the flowers arrang- 

 ed in a panicle. 



Papilionaceous, an ii'regular corolla 

 composed of five petals, the upper 

 of which forms the standard j two 

 others, placed laterally, the wings ; 

 and two (opposite the standard, 

 and more or less cohering) form 

 the keel. 



Papillose, covered with small elon- 

 gated cellular protuberances. 



Pappus, the peculiar limb to the 

 calyx of the florets of Composite 

 flowers, and frequently hairy or 

 downy as in thistles. 



Parallel, where the axes of two 

 parts he parallel to each other. 



Parasite, a plant which grows on 

 some other plant, and obtains 

 nourishment directly from its 

 juices. 



Parietal, attached to the mner sur- 

 face of the pericarp. 



Partite, divided nearly to the base. 



Patent, spreading. 



Pectinate, pinnatifid with the seg- 

 ments parallel, narrow, and close, 

 like the teeth in a comb. 



