Clxii PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 
is very rare. In the latter case, it may be stamped out by 
burning every affected stem ; in the former this will not avail,, 
as almost every onion bed might propagate the evil. It would 
be better on the whole to assume that U. Prostii is rare, and so 
strive to get rid of what may prove a serious pest. This is 
certainly a TJredo , and not a Trichobasis. There is no pedicol, 
and I have seen the spores inclosed in the parent cell.” 
History of the Genus Tulipa .—Mr. Elwes communicated an 
elaborate paper on this subject, which is printed in full in the 
Society’s Journal. 
Difusion of Coloured Liquids in Flowei's .—A pamphlet on this 
subject, by Dr. Saccardo, was laid on the table. 
Cucumber Disease .—Messrs. Smith, of Dulwich, sent clubbed 
roots of Cucumber, the swelling being apparently due to the 
presence of vibrios. 
Lilies Injured by Insects. —Mr. Jennings showed bulbs of 
Dilium testaceum , damaged by insects, which were referred to 
Mr. McLachlan for report. 
Monstrous Pyrethrum and Primrose .—Dr. Masters showed, 
from Mr. Parker, a flower-head of a Pyrethrum, the florets on 
one half of which were long and strap-shaped, while on the 
other half they were tubular, as in the Anemone-flowered race.- 
Dr. Masters also showed, from Mr. Douglas, a remarkable form 
of the common Primrose, which will be examined and reported 
on at a future time. 
Plants Exhibited. —By the Bev. Harpur-Crewe, Vida armena , 
a charming hardy Vetch with large lilac flowers. By G. F. 
Wilson, Esq., a cut spike of Xerophyllum asphodeloides. By Dr*. 
Masters : a spray of cut leaved Hornbeam, from Mr. Morrell,. 
Oxford; and a bloom of Cereus, referred to Mr. Croucher. From 
Messrs. Veitch: Cyrtopodium sp., curious for the circumstance 
that each flower was subtended by a bract marked with bars 
and spots like the sepals ; also a hybrid Dendrobium between 
D. Huttoni and D. sanguinolentum; and Ledebouria pendula, a 
Eucomis-like plant, with greenish flowers. 
FLORAL COMMITTEE. 
First-class Certificates were awarded to Coleus “ Eva," from 
Mr. J. King (gardener to G. Simpson, Esq.); to Begonia “ Royal 
Standard" from Mr. J. Chambers; to Davallia fijiensis major,. 
