422 The New York State College of Forestry 



Mammillate. See Papillate. 



Mealy. Covered with meal-like powder. 



Membranaceous, Membranous. Thin and rather soft or pliable often trans- 

 lucent. 



Midrib. The central or main rib of a leaf. 



Monoecious. Unisexual, Avith the stamiuate and pistillate flowers on the same 

 plant. 



Monopodial. With a main or primary axis which gives off secondary axes in 

 acropetal succession. Said of a tree-bole which continues through the 

 crowTi. 



Mucilaginous. Slimy; of the consistency or appearance of mucilage. 



Mucro. A short and small abrupt tip. 



Mucronate. Tipped with a mucro. 



Nectariferous. Producing nectar. 



Node. That portion of a stem which normally bears one or more leaves. 



Nomenclature. The system of names used in any science or art. 



Nut. A bony or woody uidehiscent fruit resulting from either a simple or 



compound ovary. 

 Nutlet. Diminutive of nut. 



Ob-. Latin prefix usually conveying the idea of inversion. 



Oblique. Slanting; declining from the vertical or horizontal. 



Oblong. Longer than broad with the sides approximately parallel. 



Obtuse. Blunt or rounded. 



Odd-pinnate. Pinnate with an odd number of divisions. 



Ochraceous. Light yellow with a tinge of brown. 



Opposite. Set against; said of leaves when inserted two at a node. 



Orbicular. Circular; spherical. 



Oval. Broadly elliptical ; egg-shaped. 



Ovary. The ovule-bearing portion of the pistil. 



Ovate. Of the shape of a longitudinal section of an egg, the broad part basal ; 



also used to designate an egg-shaped solid. 

 Ovoid. Solid ovate; solid oval. 

 Ovulate. Bearing ovules. 

 Ovuliferous. Bearing ovules. 

 Ovule. An immature seed. 



Palmate. With several divisions or lobes which radiate from a point. 



Panicle. An irregularly-branched racemose cluster. 



Paniculate. Panicle-like, or borne in panicles. 



Papilionaceous. The peculiar type of corolla found in the sweet pea and other 



L('g\iminosac. 

 Papillate, Papillose. Bearing minute nipple-shaped projections. 

 Parietal. Borne on or pertaining to the wall or inner surface of a capsule. 

 Parted. Cleft nearly but not quite to the base. 

 Pedicel. The stalk of a single flower. 

 Pedicellate. Borne on a pedicel. 

 Peduncle. The primary flower-stalk supporting either a single flower or an 



inflorescence. 

 Pedunculate. With a peduncle. 

 Pellucid. Clear; transparent. 



