GLOSSARY OF TECHNICAL TERMS. 



121 



Muricate, rough, with short, hard 



points. 

 Node or Knot ; the part of a stem 



at which a leaf is given off. 

 Normal, agreeing with the usual 



rule or type. 

 Ob, reversed, prefixed to many 



words as below. 

 ■Obcordate, like an inverted heart 



with the notch at the apex. 

 Oblique, unequal-sided or slanting. 

 Obovate, shaped like an egg with 



the broad end up. 

 Obtuse, blunt or rounded at the 



extremity. 

 Orbicular, completely circular in 



outline. 

 Ovate, shaped like an egg, broad 



end down. 

 Ovoid, applied to an egg-shaped 



solid. 

 Paleaceous, of a chaffy nature. 

 Palmate, divided into finger-like 



lobes. 

 Panicle, a much-branched cluster — 



usually applied to flowers, or to 



the spikes of some Lycopods. 

 Partite, cleft nearly but not quite 



to the base. 

 Patent, spreading widely. 

 Pectinate, comb-like, applied to 



pinnatifid leaves with narrow, 



close-set segments. 

 Pedate, divided like the feet of a 



bird. 

 Pedicel, a small, secondary fruit 



or flower-stalk, hence pedicelled. 

 Peduncle, a primary fruit or 



flower-stalk, hence pedunculate. 

 Pellucid, semi-transparent, allow- 

 ing light to pass through. 

 Peltate, shield-like, attached by the 



middle of the lower surface. 

 Pendulous, hanging downwards. 

 Pilose, covered with soft, distinct 



hairs. 

 Pinna, one of the primary divisions 



of a pinnate leaf. 

 Pinnate, applied to leaves whose 



leaflets are arranged along each 



side of a common rachis. 

 Pinnatifid, cut into lateral segments 



midway to the midrib. 

 Pinnatipartite, cut into lateral seg- 

 ments nearly to the midrib. 

 Finnatisect, cut quite to the rachis. 



Pinnule, one of the secondary 



divisions of a pinnate leaf. 

 Plumose, feathery. 

 Procumbent, appHed to stems Ijdng 



along the ground. 

 Proliferous, bearing buds or bulbils 



on the leaves, &c. 

 Prothallus, the rudimentary plant 



proceeding from the germination 



of the spore in ferns, &o. 

 Pubescent, covered with soft, downy 



hairs. 

 Punctate, having the surface dotted 



with small holes or pits. 

 Pungent, ending in a sharp point. 

 Pyriform, shaped like a pear. 

 Radical, usually applied to leaves, 



&c. , proceeding from a root-like 



portion of the stem. 

 Ramification, branching. 

 Rachis, the continuation of the 



stalk or stipes on which the 



pinnse of a pinnate leaf are 



arranged. 

 Reniform, kidney-shaped. 

 Reticulated, having the veins in the 



form of network 

 Revolufe, roUed back at the margins. 

 Rhizome, a root-like stem running 



either above or below the ground, 



usually sending down roots below 



and leaves or branches above. 

 Rhomboid, having four sides all 



equal, but the angles not right 



angles. 

 Rootstock, the rhizome. 

 Sarmentum, the slender woody stem 



of climbing plants, hence sarmen- 



tose. 

 Scabrous or Scabrid, rough to the 



touch. 

 Scalariform, ladder-like ; aj)plied to 



the transversely-marked tissue of 



ferns, &c. 

 Scandent, chmbing. 

 Scape, a peduncle springing from 



the ground. 

 Scarious. thin, dry, and mem- 

 branous, not green. 

 Segment, one of the divisions of a 



cleft organ, such as a leaf. 

 Septum, a division, usually applied 



to that which divides a capsule 



into cells or loculi. 

 Serrate, with the margin cut into 



saw-like teeth. 



