NOTE. 509 
adventitious and imperfect flower-bud, as in the Phlomis, mentioned at 
p. 119. 
Monecious Misleto, p. 195.—In this specimen, exhibited at one of the 
meetings of the Scientific Committee of the Royal Horticultural Society 
in 1869, there were both male and female flowers on the same bush. The 
plant was of the male sex, with numerous long slender whip-like, somewhat 
pendulous, branches bearing comparatively large broad yellowish leaves, 
and fully developed male flowers at the end. From the side of one of 
these male branches, near the base, protruded a tuft of short, stiff- 
branches, bearing small, narrow, dark green leaves, ripe berries and 
immature female flowers. There was no evidence of grafting or para- 
sitism of the female branch on the male, the bark and the wood being 
perfectly continuous so that the only tenable supposition is that this 
was a case of dimorphism. 
Adventitious leaflet and pitcher, see pp. 380 and 355. In a species of 
Picrasma, in which the leaves are impari-pinnate and spread horizon- 
tally, an adventitious leaflet was observed to project at right angles 
to the plane of the primary leaf. It emerged at a point nearly corre- 
sponding to that at which the normal pinne were given off. The 
appearance presented was thus like that of a whorl of three leaves, 
except that the shining surface of the adventitious leaflet, corres- 
ponding to the upper face of the normal leaflets, was directed towards 
the axis, 7. e., away from the corresponding portion of the neighbouring 
pinne, while the dull surface, corresponding to the lower part of an 
ordinary leaflet, looked towards the apex of the main leaf, or away from 
the axis. In one instance, a stalked pitcher was given off from the same 
point as that from which the supernumerary leaflet emerged, the pitcher 
being apparently formed from the cohesion (congenital) of the margins 
of a leaflet. 
In the normal leaf of this plant there is between the bases of the 
pinne, a small reddish gland or stipel? attached to, or projecting from, 
the upper surface of the rachis. It appeared from some transitional 
forms that the adventitious leaflet, just mentioned, was due to the exag- 
gerated development of this gland, but no clue was afforded as to the 
origin of the ascidium. It was not practicable to examine the arrange- 
ment of the vascular bundles in the rachis. 
Additional labella in Phaius——A flower of Phaius grandiflorus was 
found in the same condition as the Catasetwm, mentioned at pp. 291 and 
382. 
Tubular stem.—A species of Sempervivum, exhibited by Mr. Salter, of 
Hammersmith, at one of the summer exhibitions of flowers at the Royal 
Horticultural Society in 1868, under the name of S. Bollei, deserves 
notice from its bearing on the question of such structures as the calyx- 
tubes, the hip of the rose and such like, see pp. 394, 482. In this plant 
