GLOSSARY OF BOTANICAL TERMS USED. xxix 



MUCRO : a short sharp terminal excrescence, rather longer than an 



apicula but shorter than a cusp. 



MURICATE : rough with short, hard, tubercular excrescences. 

 MUTICOUS : blunt ; without any apical excrescence. 



-NATE : a suffix used in combination to indicate the number of parts, 



e. g. binate, in pairs ; ternate, in threes. 

 NECTARY : an organ in which nectar is excreted ; sometimes applied 



to any anomalous part of a flower, such as a spurred petal. 

 NODE : the part of an axis whence a secondary member or whorl of 



members arises. 

 NODOSE : knotty or knobby. 

 NUT : a hard, dry, indehiscent 1 -seeded fruit ; often also applied to a 



similar single part of a several-celled fruit. 



OB- : used as a prefix inverts the term affixed. 



OBLATE : spherical but flattened at the poles. 



OCHREA or OCREA : a tubular stipule or pair of combined stipules. 



-OID : a suffix indicating similarity to the term prefixed, e. g. petaloid, 



resembling petals. 

 OLIVACEOUS : olive-coloured. 



OPERCULUM : a lip or cover which separates by transverse dehiscence. 

 ORBICULAR : circular in outline. 

 ORTHOTROPOUS : an ovule with a straight axis, the chalaza close to 



the hilum and the orifice at the opposite end. 

 OVARY : that part of the pistil which contains the ovules. 

 OVATE : egg-shaped. 

 OVULE : the incipient seed before fertilization. 



PALATE : the prominent lower lip of certain corollas ; the throat of 



some 2-lipped corollas. 

 PALEA : chaffy or hyaline scale present in the inflorescence of some 



plants. 



PALMATE : diverging like the widely spreading fingers of a hand. 

 PANDURIFORM : fiddle -shaped. 

 PANICLE : a repeatedly branched inflorescence. 

 PAPILLA : a soft superficial protuberance or gland. 

 PAPPUS : various tufts of hairs on some achenes or fruits, specially 



the scaly, bristly, hairy or feathery modified calyx in the 



Compositae. 

 PARIETAL : borne on the wall. 



