4 Scientific Proceedings, Royal Dublin Society. 
very rare. In the high pine woods of Central Hurope it is local 
but not uncommon, and the present observations were made on 
specimens from the Eastern Alps. The coralloid rhizome differs 
markedly from the usual type of underground stem met with in 
Monocotyledons, except that of Epipogon, which is on the whole © 
similar. It grows embedded in a soil unusually rich in humus 
compounds. 
Chlorophyll is often stated to be entirely absent, or present 
only in the ovary (Warming); but, as above noted, it may be 
slightly developed in the flowers and top of the scape. The 
EorGeenos 
Transverse section through the outer layers of the rhizome. 
aerial portion of the plant is a simple scape, bearing only colourless 
leaf-sheaths, and at the top a raceme of small pale flowers. 
The fungal hyphe constituting the mycorhiza (when examined 
microscopically) are seen to have the following characters (fig. 2). 
They are distinctly septate and repeatedly branched, of a yellow, 
white, or brownish colour. They possess numerous “ clamp- 
connexions,”’ indicating that the mycelium belongs to one of the 
higher fungi, a conclusion which is supported by the fact, that 
young agaricoid sporophores have been, in one instance, found 
growing from the mycelium round the rhizome. ‘These refused 
to develop further on cultivation, but comparison with the early 
stages of Clitocybe infundibuliformis Sch., found a few feet distant, 
indicates that this is the species to which they, in that case, 
belonged (Plate 1.). 
Attempts to determine whether the mycelium could be referred 
to any one species of fungus have been made in the pine woods of 
Davos Platz by one of us,’ who has had plants under observation 
1 A. Vaughan Jennings. 
