60 



(2) Parts blade thin expanded portion; petiole leaf 



stalk; stipules pair of small blades at base of 

 petiole. 



(3) Veining parallel, netted; midrib central line; ribs 



second in size; veins third in size; veinlets 

 minute lines. 



(4) Kinds of leaves simple one blade, compound more 



than one blade, palmately compound blades from 

 one point, pinnately compound blades arranged 

 alongside. 



V. Forms of leaves broadcast in the middle orbicular, oval, el- 

 liptical, oblong, linear, needle-shaped; broadest near base 

 deltoid, ovate, cordate or heart-shaped, lanceolate, awl-shaped, 

 scale-shaped; broadest near apex obovate, obcordate, oblan- 

 ceolate, cuneate or wedge-shaped. 



(1) Bases of leaves cordate or heart-shaped, auriculate. 



Abrupt, tapering, peltate or shield-shaped, reniform 

 or kidney-shaped, halberd-shaped, oblique. 



(2) Apexes of leaves truncate, retuse, emarginate, ob- 



cordate, obtuse, acute, acuminate, bristle-pointed, 

 spiny-pointed, mucronate. 



(3) Margins entire, repand, sinuate, dentate, serrate, 



crenate, lobed, notched, cleft, parted, divided, pin- 

 natified. 

 VI. Nature of Leaves. 



(1) Surface pubescent, glabrous, canescent, scabrous. 



(2) Texture succulent, punctate, membranous, thick, 



thin. 



OUTLINE FOR TREE DESCRIPTION. 



Tree as a whole: size, general form, trunk, branching, twigs, char- 

 acter of bark, color of bark on trunk, branches, and fine spray. 



Leaves: parts, arrangement, kinds, size, thickness, form, edges, 

 veining, color, surface, duration. 



Buds: position, size, form, covering, number, color. 



'Sap and juice. 



Flowers: size, shape, color, parts, odor, position, time of blooming, 

 duration. 



Fruit: size, kind, form, color when young and when ripe, time of 

 ripening, substance, seeds, duration, usefulness. 



Wood (often necessarily omitted): hardness, weight, color, grain, 

 markings, durability. 



Remarks: the peculiarities not brought out by (he above outline. 



