ANATOMY OF THE JULIANIACEA, 151 
an oval, elongated head, which is often not much broader than the stalk; clust. cryst. of 
leaf in particularly large idioblasts; entire inner portion of prim. cortex of stem 
composed of somewhat thickened cells; resin-canals in the pith of the stem. 
JULIANIA GLAUCA, Hemsl. & Rose. 
(Without any number.) 
Cuticle of both epid. (esp. the lower) very strongly striated ; stom. long and narrow; 
hairs absent or very rare; glands rather like those of J. adstringens; inner tangential 
walls of cork-cells very considerably thickened; no thickened and sclerosed cells in the 
primary cortex of the stem; resin-canals in the pith of the stem. 
ORTHOPTERYGIUM Hvavcur, Hemsl. 
(Without any number.) 
See the generic diagnosis above (p. 150). 
EXPLANATION OF THE PLATES. 
PLATE 20, 
(Structure of the inflorescence.) 
Description in text, pp. 143, 144. Fig. A is inverted with reference to the remaining figures. 
i.=involucre ; ov. 1, ov. 2, ov. 3, ov. 4, styles and ovaries of the four individual flowers of the inflorescence 
(shaded by lines aud dots) ; s. 1, s. 2, s. 8, the spaces separating the flowers laterally ; r.=resin-canals. 
PLATE 21, 
Anatomy of the fruit of Juliania :—4.ep. = inner epidermis of ovary-wall ; o.ep. = outer ditto; c.l. 1 = 
inner layer of crystal-containing cells; c.4.2 = outer ditto; m. = thick-walled tissue between the two 
layers; scl, = sclerenchyma-bundles; f. = cells, which at the inner limit of the bundles bend in and 
form part of them ; p. = thick-walled pitted tissue between the bundles; ¢, = thin-walled tissue beneath 
0p. h, = hair; hb. = hair-base. 
Fig. 1. Juliania adstringens (Langlassé, n. 319 bis), transverse section through ovary-wall in the ripe 
it; the outer integumental tissues (o.ep.) are to a great extent wanting. (x 120.) 
Fig. 2. J. adstringens (Nelson, n. 1827), transverse section through an ovary-wall, in which the outer 
crystalline layer is absent. (x 205.) ; 
Fig. 3. J. amplifolia (Rose, n. 3735), surface-section of the inner surface of the ovary-wall, showing the 
inner epidermis and the erystal-containing layer beneath it. (x 320.) 
Fig. 4. J. adstringens (Langlassé, n. 319 bis), thin-walled pitted cells from wall of involucre. (x 215.) 
Fig. 5. J. amplifolia (Rose & Hough, n. 4819), transverse section through ovary-wall in young fruit ; 
v.b. = vascular bundles, r.c. = resin-canals, ( x 120.) 
