2. “On the Occurrence of the Clover Dodder (Cuscuta trifolii) in the Waikato District,” by Major W. G. Mair.
The existence of this vile parasitical plant in Waikato is a matter of serious import to agriculturists. As far as I can ascertain, it was first noticed in 1869. It is to be met with now on most of the farms about Ohaupo and Pukerimu. In some places it was first observed springing from horse droppings, and for this reason it is supposed by the settlers to have been introduced in horsefeed. It is unfortunate that its appearance was not remarked upon
earlier, for at this date it would be less easy to trace its origin. It shows itself early in the spring, and spreads outwards like a ringworm all through the summer till the beginning of autumn, when it disappears, leaving a circular patch; some of these patches have been seen fifty yards in diameter. In some instances, more especially in light good soils, as the circle extends the pasture springs up behind it, but upon heavy land the patch is usually quite denuded of vegetation. I have only seen it on red clover (Trifolium pratense) and cow-grass (T. medium) growing with such vigour that the unfortunate plant is quite hidden by the parasite. If taken in time its ravages may be checked by paring clean and burning, but if neglected during the first weeks of spring nothing short of turning up the whole field will destroy it. I am indebted to Captain Rich of Fernside (where I first saw the Cuscuta growing) for information touching its habits.
3. “Notes on the Naturalized Plants of the Chatham Islands,” by T. Kirk, F.L.S. (See Transactions, p. 320.)
This comprised a catalogue of the introduced plants observed in a naturalized condition by Mr. H. H. Travers during his exploration of the islands.
4. “On Compound Engines,” by W. Lodder. (See Transactions, p. 144.)