14 BULLETIN 1282, U. S. DEPARTMENT OF AGRICULTURE 
Inner shell. The portion of the shell between the canals and the kernel. The 
inner shell usually differs in texture from the outer shell. (Fig. 5 (19).) 
Internodes. The portion of a stem between two nodes. 
Kernel. The edible portion of the nut. In the description the term “ kernel ” 
includes the pellicle. (Fig. 5, A.) 
Lateral. On the side of. Applied to side branches springing from main 
branches. 
Length of dorsal and ventral edges. The distance along the dorsal or ventral 
edge from the stem scar to the extreme apex in the nut and from the base ~ 
scar to the apex in the kernel. 
Lenticels. Small openings in the bark. Pores in the cortex, accompanied by 
an accumulation of corky material, through which air penetrates to the 
interior of woody plants. The lenticels have characteristic shapes, sizes, 
colors, elevations, etc., Which are important in comparing varieties, especially 
when the comparison is made on the same age of bark on trees under similar 
climatic and growing influences. (Pls. XVI and XVII.) 
Midrib. The central vein of a leaf blade, being a continuation of the main 
vascular bundle through the petiole. (Fig. 7, f.) 
Nodes. The places on the stem where the leaves are borne. 
Obovate. Inversely ovate. (See the lower middle leaf near the letter A in Pl. 
XVIII.) 
Obtuse. Used here to mean blunt or rounded. Should not be confused with 
obtuse angle. (See base of leaves in Pls. XXI, A, XXIII, A, and XXV, A.) 
Oval. Used here to mean broadly elliptical. (See second leaf from right side 
in Pi. XVLIT) 
Ovate. Egg-shaped, with the broader end basal. Used with reference to leaves, 
nuts, buds, ete., to describe their outline when drawn on a flat surface; i. e., 
the term ovate applies to surface view only. The corresponding term for 
solids is “‘ ovoid.” (See I. X. L. leaves, Pl. XX, B.) 
Ovoid. Egg-shaped, with the large end toward point of attachment. 
Outer shell. The portion of the shell outside the main canals. (Fig. 5 (18).) 
Paper shell. Applied to almonds with an exceedingly thin shell, as in the 
California or Nonpareil varieties. 
Pellicle. The thin skin or membrane covering the kernel. (Fig. 5 (13).) 
Pellicle fold. A fold of the pellicle occurring along the ventral edge of the 
kernel near the apex. (Fig. 5 (20).) 
Petiole. The stalk or stem of a leaf. (Fig. 7, 0.) 
Pits. The round or irregular depressions on the surface of the shell. (Fig. 
5 (8).) 
Prominence. Used here to express the extent to which one particular part ex- 
tends outward from another. In describing the wing, for instance, “‘ promi- 
nent’ takes the place of the usual term ‘‘ wide,’ because width is used in 
this connection to mean thickness only. 
Pubescence. The hairs on the hull or hairlike glands on the pellicle. 
Raised. Applied to the lenticels when they project above the outer surface of 
the bark. 
Recurved. Curved backward, or opposite the usual direction. 
Reniform. Kidney-shaped. 
Ridge. A long elevation. Used here especially in referring to the ridged por- 
tion frequently present on the dorsal edge of the almond nut or on the 
ventral edge of some hulls before dehiscence. (Fig. 10.) 
Scimitar shaped. Applied to a peculiar recurved appearance of the apex of 
some almond nuts. 
Serrate. Notched or toothed like a saw, with the teeth pointed toward the 
apex. (Fig. 8, B.) 
Serration. One of the teeth in a serrate margin. (Fig. 8, B.) 
Shoulder. The portion of the ventral and dorsal edges forming the base of the 
nut or kernel. (Designated as “ ventral shoulder’ and ‘ dorsal shoulder.” 
(dtr 5". (76. 272) 
Spur. An exceedingly short branch upon which fruit is borne. (Fig. 10.) 
Stem scar. The scar on the base end of the nut at the point where it was at- 
tached to the spur. (Fig. 5 (5).) 
Striations. Wavy or crooked streaks of different color from the rest of the 
bark, running longitudinally and parallel to the branch, frequently caused 
by the cracking of the epidermis of the bark. Striations are characteristic 
of some varieties. 
