xxxii PKOCEEDINGS OF THE KOYAL HORTICULTURAL SOCIETY. 
therefore his opmion was confirmed that the diseased condition of the 
berries was most probably due to a young condition of Gl^eosparium. 
Larix occidentalis. — Dr. Masters showed young cones of this species 
from Oregon, characterised by having green bracts, the European Larch 
having them of a red colour. It is described as the finest timber tree of 
N.W. America. It was discovered by Douglas, who mistook it for the 
European species. 
Scientific Committee, June 5, 1900. 
Dr. M. T. Masters in the Chair, and four members present. 
Tulipa Gesneriana diseased. — Some roots received from Mr. Mann, 
Penhill Close, Cardiff, were forwarded to Dr. Wm. G. Smith for examina- 
tion and report. 
Iris ivith diseased Boots. — Mr. Wilks brought some plants showing 
premature decay in the foliage. He observed that he had received 
reports from all parts of England of a similar condition among Irises of 
all sorts. The roots appeared to rot close to the rhizome. They were 
also sent to Dr. Wm. G. Smith. 
A synanthic Odontoglossum. — A flower from a spray on a plant of 
0. triumplians, sent by Mr. Pitt, illustrated the twin condition of two 
coherent flowers ; the columns, however, were free from each other above 
the combined ovaries, as well as the two labellums. 
Fendlera rupicola. — Mr. Gumbleton exhibited a flowering branch of 
this unique shrub, there being but one species to the genus. It is a 
native of Texas and New Mexico, and a near ally of Philadelphus or 
Syringa, as popularly known ; but while the ovary is inferior in the latter 
genus it is superior in Fendlera. 
Scientific Committee, June 19, 1900. 
Dr. M. T. Masters in the Chair, and four members present. 
Rose-rust. — Some leaves sent by the Eev. H. C. Brewster, of South 
Kelsey Rectory, were attacked by an gecidium. Mr. Plowright reports 
that it is " the pscidiospore of Phragmidiiim suhcorticatum, formerly 
called Uredo effusa, or viiniatum of older writers. These jecidiospores 
are often preyed upon by some mites, as in the present case, which 
become tinged with the orange colour of the spores, which they eat. On 
some of the leaves the uredospores are beginning to appear." 
Potato Crop defective.— My, F. H. Kettle, of King's Ford, Colchester, 
forwarded samples, of which he writes : — " The Potato crop in this district 
is a very uneven one, and various reasons are suggested for it." The 
specimens sent are ' Bressee's Prolific,' and they are typical of plenty of 
others in the store room. The samples were forwarded to Mr. A. Sutton, 
who reports as follows : — 
"In reply to your inquiry, it is quite certain that Mr. F. H. Kettle is by no 
means singular in his experience of Potatos coming up very unevenly this 
season. We hear from all parts of the country that such is the case, and 
