Rhododendron Falconeri , Hook. f. , and R. Hodgsoni , Hook. f. 637 
by further differentiation. Such a primitive peltate hair would consist 
of a short, multiseriate stalk, the head being composed of an inner circular 
disc of small cells and an outer annular zone of large elongated cells. This 
type is of widespread occurrence and is figured by Breitfeld, 1 . c., from 
Rhododendron Malayanum, Jack. The next stage in the development 
would seem to be that of Rhododendron Anthopogon , Don., where the stalk 
is longer and the outer zone curved upwards to form a cup, the inner cells, 
however, are still few in number; a figure of this hair may be seen in 
Solereder, Systematic Anatomy of the Dicotyledons (English edition), 
p. 485. From this it is easy to imagine the evolution of the type found in 
Rhododendron Hodgsoni by the extended development of the central disc, 
and of that in R. Falconeri by the upward growth of the main mass of cells, 
so as to form a funnel rather than a saucer-shaped structure—the stalk at 
the same time having become reduced (R. Hodgsoni ) or suppressed ( R . 
Falconeri). 
II. Ovaries. 
The ovary of R. Falconeri was originally described and figured by 
Sir Joseph Hooker, 1 . c., tab. x, as ‘ hirsutissimum viscosum’, and the 
original drawing shows the ovary green and densely covered with short, 
stiff hairs, with what look like drops of a viscid matter adhering to them. 
There are no specimens at Kew which can be identified with certainty 
as being of this collecting on Tonglo. But from plants collected later in the 
same year (1848) in different localities, the ovary has been found to be not 
hirsute at all, but apparently glabrous and covered with a copious viscous 
substance. When examined, this covering was seen to be composed of 
a large number of glandular hairs embedded in the viscous matter exuded 
by them. Each hair consists of a very short, multicellular stalk, capped by 
a large globular head. In specimens from later collections, however, and in 
many fresh ones, the ovary was covered by a ferruginous felt, and in this case 
the indumentum consisted largely of fascicled hairs, among which a few of 
the glandular hairs were interpolated. The former are stellate and shaggy, 
consisting of a short, multiseriate stalk to which is attached a number 
of uniseriate branches, pointing in all directions. These are a modification 
of the broom-shaped shaggy type drawn by Breitfeld, l. c., Fig. 3, in which 
the arms are very regularly directed upwards. At the same time the 
branches were scarcely as spreading as shown in Fig. 6 on the same plate 
(both for Rhododendron Falconeri ). The present hairs are, in fact, inter¬ 
mediate between the two figures. It is important to note that the glandular 
and fascicled hairs appear in very varying proportions on the ovary of 
R. Falconeri. 
In the case of Rhododendron Hodgsoni the ovary possesses the fascicled 
type of hair only, imparting a whitish appearance and soft texture. 
