TKANSACTIONS OF SECTION D. 649 



Phleum pratense, L. — Timothy grass. 

 TrifoHum pratense, L. — Purple or meadow clover. 

 Medicayo sativa, Tj. — Lucerne. 

 Taraxacum officinale, Web. — Dandelion. 

 Achillea Millefolium, L. — Milfoil or yarrow. 

 Plantago lanceolata, L. — Ribwort or plantain. 



These plants were dug up in early spring, their roots were well washed, and 

 then the roots and root-fibres were cut through with scissors at various depths 

 below the surface. Several specimens of each plant were taken, and the length of 

 root after cutting never exceeded three inches, and sometimes was as little as one 

 inch. The various specimens were then planted out in poor soil, and they not only 

 lived, but in the course of the summer they all came into bloom. This test was 

 far more severe than in the case of the nine-inch depths of turf, where there was 

 no transplanting in the true sense of the word. Elipnus condensatus and Medicago 

 sativa are not British pasture plants ; but the former was employed because it is a 

 grass far more robust and of much stouter roots than any British grass ; its roots 

 were severed at a depth of between H and 2 inches. The latter is a notoriously 

 deep-rooted plant, and the section of its roots was made at a depth of three inches. 

 The experiment shows that root-section, even of very deep-rooted plants, may be 

 performed, without fatal results, at exceedingly moderate depths. The practical 

 interest of the point at issue is that it underlies a subject of very great agricultural 

 importance. 



8. On a Monadine Parasitic on Saprolegiiice. 

 By Professor M. M. Hartog, D.Sc 



9. On Tuchungia, a new Genus from. Central Afrlj^a. 

 By Dr. F. W. Oliver. 



10. On a case of Mycorhiza. By Dr. F. W. Oliver. 



11. On Floral Contrivances in the Genus Thesium. By Miss EwART. 



12. On the Development of a Sclerotium from Botrytis. 

 By Professor H. Marshall Ward, F.B.S. 



13. On the recognition, by means of Microscopic Sections, of Woods dug by 

 Mr. Spurrell from the Forest Beds of the Thames. By Professor H. 

 Marshall Ward, F.E. S. 



