NOTE. 509 



advcntitions and imperfect flower-bud, as in the Phlomis, mentioned at 

 p. 119. 



Moncecioiis Misleto, p. 193. 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, stiflF- 

 bi*anche8, bearing small, narrow, dark green leaves, ripe berries and 

 immature female flowers. There was no evidence of grafting or pai*a- 

 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. 



AdventiHaiis leaflet and pitcher, see pp. 30 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 coitc- 

 sponding to that at which the normal pinnae were given oflF. The 

 appearance presented^was thus [like that of a whorl of three leaves, 

 except that the shining surface of the adventitious leaflet, coires- 

 ponding to the upper face of the normal leaflets, was' directed towards 

 the axis, i. e., away from the corresponding portion of the neighbounng 

 pinnae, while the dull surface, coiTcsponding to the lower pai-t of an 

 ordinary leaflet, looked towards the apex of the main leaf, or away fi-om 

 the axis. In one instance, a stalked pitcher was given off from the same 

 point as that from whichjthe 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^here is between the bases of the 

 pinnae, 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 [ascidiiun. It was not practicable to examine the arrange- 

 ment of the vascular bundles in the i-achis. 



Additional lobelia in Phaiiis. A flower of Phaitts grandiflorus was 

 foimd in the same condition as the Catasetum, mentioned at pp. 291 and 

 382. 



Tvhular stem. A species of Sei^vpervivum, 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. BoUei, 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 



