3oo 
Notes . 
bundles have often a complete circle of exogenous wood, without 
pith, and a crescent of phloem on the outer side ; they are all but 
concentric [and may become so by the extension of the phloem] ; in 
the petiole it is impossible to distinguish the bundles [proceeding from 
the central cylinder] 1 from the cortical set owing to the anastomoses 
in the nodes. The section of the petiole with its scattered bundles 
recalls that of a monocotyledonous stem, but there is no pericycle. 
c In Stravadium dracemosum, belonging to the closely allied Barring- 
tonieae, there are similar bundles, but the orientation of the liber is 
reversed, and the bundle [derived from the central cylinder] 2 retains its 
distinctness in the petiole. 
‘ The explanation is suggested by the following facts. The cata- 
phyllary first leaves of Gustavia [and Lecythis ] are decurrent to the 
node below, so that the stem is winged, and the wings contain one or 
two pairs of accessory common bundles. Higher up the wings are 
lost, but their vascular bundles remain to give rise to this system of 
accessory bundles [I therefore refer the bundles to the decurrent wings 
probably present in the ancestral forms, but which have merged into 
the stem in existing forms save in the first formed internodes of the 
seedling]. Napoleona has a similar system of cortical bundles ; [this 
confirms the view that its proper systematic position is next the 
Barringtonieae].’ 
MARCUS M. IIARTOG, Cork. 
VAU CHERI A-GAIiLS. — Professor D. Oliver has been kind 
enough to call my attention to an item in the literature of this subject 
overlooked both by Benko and myself (Annals of Botany, vol. iv. 
No. 13), viz., a paper by Professor Oliver in the ‘Transactions' of 
the Tyneside Naturalists' Field Club, vol. iv for i860, p. 263, with 
an admirable plate. The species of Vaucheria is not given ; the im- 
prisoned animal is stated, on the authority of the late Mr. Gosse, to 
be probably Rotifer vulgaris. Morren's paper, in the Bull. Roy. 
Acad. Bruxelles, vol. vi. No. 4, is also illustrated : there is a transla- 
tion, but without the figures, in Ann. Nat. Hist., vol. vi. p. 344. 
In a paper read before the Liverpool Microscopical Society in 
1 By a slip I wrote here ‘ common bundles.’ 
3 ‘ Common bundle ’ in the original. 
