APRIL, 1918.] THE ORCHID REVIEW. 87 
as Odontoglossums. Odontoglossum citrosmum, now pushing up flower 
spikes, may have the water supply slightly increased. 
Oncip1uMs.—O. varicosum and other late-flowering species that are in 
need of new material, may have attention whenever new roots are observed 
to be pushing from the base of the new growths. They succeed in a similar 
compost to that used for Odontoglossums. 
GENERAL ReMARKS.—The daylight-saving order will necessitate 
someone putting in long days in most places, as the sun and clocks are now 
disjointed as regards the work of shutting up the houses and other matters 
appertaining to Orchid culture. This matter may appear trivial, but during 
the present shortage of labour it may cause many some anxiety, and in 
many cases it will be advisable for someone to remain later in order to 
attend to the necessary work. 
\ 
ODONTOGLOSSUM HARVENGTENSE AUREUM. bx. 
tent 
BRILLIANT yellow Odontoglossum is sent from the Royal Botanic 
Garden, Glasnevin, by Sir Frederick W. Moore, under the name of 
O. crispum Glasnevin yellow. It was obtained from Messrs. Stuart Low & 
Co., some years ago, and flowered in 1915, It is again in bloom, and the 
remains of the spike, with five flowers, have been forwarded, with a 
suggestion that it may not be a pure crispum. The other blooms have been 
sent away forhybridisation purposes. It is one of the most beautiful yellows 
that we have seen, but we believe it to be a yellow form of O. harvengtense, 
the natural hybrid between O. crispum and O. triumphans, for the broad, 
rounded lip, with a few minute marginal dots, the nature of the crest, and 
the broad, only slightly denticulate columa-wings, all show the influence of 
O. triumphans. The flowers are of excellent shape and substance, and 
measure 3} inches in diameter across the petals, while the colour is clear 
canary yellow, with a slight rosy suffusion at the back of the sepals. The 
disc of the lip is deeper yellow, shading to white at the margin and apex, 
while there is a medium-sized brown blotch in front of the crest, and one or 
two small ones on either side. It is most comparable with a fine yellow that 
flowered in the collection of John Day, Esq., in March, 1884, and of which 
he made a painting (Orch. Draw., xli. t. 53), this having flowered among 
some plants of O. crispum of Messrs. Shuttleworth & Carder’s importing 
two years earlier. Mr. Day remarked that this was much the most yellow 
form that he had seen, but it is not as bright as in the present one. It also 
had a suffusion of rose at the back of the sepals, and the three flowers show, 
respectively, one, three and six small blotches at the apex of the lip. It 
may be a reversion from O. Wilckeanum. R. A. ROLFE. 
